/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:32:15,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:32:15,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:32:15,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:32:15,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:32:15,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:32:15,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:32:15,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 15:32:15,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:32:15,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:32:15,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:32:15,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:32:15,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:32:15,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:32:15,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:32:15,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:32:15,189 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:32:15,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:32:15,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:32:15,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:32:15,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:32:15,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:32:15,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:32:15,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:32:15,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:32:15,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:32:15,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:32:15,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:32:15,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:32:15,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:32:15,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:32:15,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:32:15,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:32:15,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:32:15,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:32:15,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:32:15,427 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:32:15,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-03-01 15:32:15,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea6f7602/e562d8caceff4a638c25286033395897/FLAGc5cb01d47 [2022-03-01 15:32:15,803 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:32:15,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-03-01 15:32:15,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea6f7602/e562d8caceff4a638c25286033395897/FLAGc5cb01d47 [2022-03-01 15:32:16,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea6f7602/e562d8caceff4a638c25286033395897 [2022-03-01 15:32:16,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:32:16,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:32:16,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:32:16,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:32:16,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:32:16,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d50097a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16, skipping insertion in model container [2022-03-01 15:32:16,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:32:16,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:32:16,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-03-01 15:32:16,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:32:16,397 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:32:16,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-03-01 15:32:16,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:32:16,416 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:32:16,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16 WrapperNode [2022-03-01 15:32:16,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:32:16,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:32:16,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:32:16,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:32:16,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,439 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 130 [2022-03-01 15:32:16,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:32:16,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:32:16,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:32:16,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:32:16,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:32:16,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:32:16,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:32:16,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:32:16,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (1/1) ... [2022-03-01 15:32:16,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:32:16,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:32:16,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 15:32:16,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 15:32:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:32:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:32:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:32:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:32:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:32:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:32:16,521 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:32:16,588 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:32:16,589 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:32:16,772 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:32:16,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:32:16,781 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 15:32:16,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:32:16 BoogieIcfgContainer [2022-03-01 15:32:16,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:32:16,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:32:16,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:32:16,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:32:16,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:32:16" (1/3) ... [2022-03-01 15:32:16,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@deb9728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:32:16, skipping insertion in model container [2022-03-01 15:32:16,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:32:16" (2/3) ... [2022-03-01 15:32:16,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@deb9728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:32:16, skipping insertion in model container [2022-03-01 15:32:16,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:32:16" (3/3) ... [2022-03-01 15:32:16,789 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2022-03-01 15:32:16,792 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:32:16,792 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:32:16,792 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:32:16,792 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:32:16,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,827 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,832 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,838 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,839 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,840 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,867 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,871 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,873 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:32:16,876 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 15:32:16,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:32:16,916 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:32:16,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 15:32:16,925 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 176 transitions, 368 flow [2022-03-01 15:32:17,142 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:17,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:17,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:17,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash 4484043, now seen corresponding path program 1 times [2022-03-01 15:32:17,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:17,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082737430] [2022-03-01 15:32:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:17,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:17,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:17,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082737430] [2022-03-01 15:32:17,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082737430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:17,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:17,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:17,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255917883] [2022-03-01 15:32:17,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:17,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:17,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:17,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:17,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:17,714 INFO L87 Difference]: Start difference. First operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:18,061 INFO L93 Difference]: Finished difference Result 8205 states and 22746 transitions. [2022-03-01 15:32:18,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:32:18,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:18,121 INFO L225 Difference]: With dead ends: 8205 [2022-03-01 15:32:18,121 INFO L226 Difference]: Without dead ends: 7243 [2022-03-01 15:32:18,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:18,126 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:18,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1806 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-03-01 15:32:18,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-03-01 15:32:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7931298880539797) internal successors, (18214), 6521 states have internal predecessors, (18214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18214 transitions. [2022-03-01 15:32:18,407 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18214 transitions. Word has length 91 [2022-03-01 15:32:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:18,411 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18214 transitions. [2022-03-01 15:32:18,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:18,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18214 transitions. [2022-03-01 15:32:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:18,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:18,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:18,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:32:18,428 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2130602867, now seen corresponding path program 2 times [2022-03-01 15:32:18,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:18,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498770342] [2022-03-01 15:32:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:18,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:18,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:18,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498770342] [2022-03-01 15:32:18,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498770342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:18,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:18,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:18,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591155407] [2022-03-01 15:32:18,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:18,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:18,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:18,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:18,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:18,590 INFO L87 Difference]: Start difference. First operand 6522 states and 18214 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:18,878 INFO L93 Difference]: Finished difference Result 7479 states and 20746 transitions. [2022-03-01 15:32:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:18,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:18,910 INFO L225 Difference]: With dead ends: 7479 [2022-03-01 15:32:18,910 INFO L226 Difference]: Without dead ends: 7212 [2022-03-01 15:32:18,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:18,912 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 110 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:18,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1600 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2022-03-01 15:32:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 6518. [2022-03-01 15:32:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.793156360288476) internal successors, (18203), 6517 states have internal predecessors, (18203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18203 transitions. [2022-03-01 15:32:19,093 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18203 transitions. Word has length 91 [2022-03-01 15:32:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:19,093 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18203 transitions. [2022-03-01 15:32:19,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18203 transitions. [2022-03-01 15:32:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:19,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:19,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:19,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:32:19,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:19,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1383610329, now seen corresponding path program 3 times [2022-03-01 15:32:19,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:19,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906795209] [2022-03-01 15:32:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:19,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:19,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906795209] [2022-03-01 15:32:19,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906795209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:19,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:19,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:19,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766433410] [2022-03-01 15:32:19,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:19,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:19,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:19,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:19,218 INFO L87 Difference]: Start difference. First operand 6518 states and 18203 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:19,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:19,505 INFO L93 Difference]: Finished difference Result 7547 states and 20917 transitions. [2022-03-01 15:32:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:32:19,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:19,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:19,531 INFO L225 Difference]: With dead ends: 7547 [2022-03-01 15:32:19,531 INFO L226 Difference]: Without dead ends: 7252 [2022-03-01 15:32:19,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:32:19,532 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 145 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:19,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1730 Invalid, 182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2022-03-01 15:32:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 6514. [2022-03-01 15:32:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 6513 states have (on average 2.7931828650391526) internal successors, (18192), 6513 states have internal predecessors, (18192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 18192 transitions. [2022-03-01 15:32:19,683 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 18192 transitions. Word has length 91 [2022-03-01 15:32:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:19,684 INFO L470 AbstractCegarLoop]: Abstraction has 6514 states and 18192 transitions. [2022-03-01 15:32:19,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 18192 transitions. [2022-03-01 15:32:19,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:19,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:19,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:19,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:32:19,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:19,696 INFO L85 PathProgramCache]: Analyzing trace with hash -530590919, now seen corresponding path program 4 times [2022-03-01 15:32:19,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:19,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316195135] [2022-03-01 15:32:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:19,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:19,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:19,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316195135] [2022-03-01 15:32:19,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316195135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:19,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:19,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:19,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533518527] [2022-03-01 15:32:19,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:19,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:19,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:19,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:19,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:19,799 INFO L87 Difference]: Start difference. First operand 6514 states and 18192 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:20,089 INFO L93 Difference]: Finished difference Result 7598 states and 21046 transitions. [2022-03-01 15:32:20,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:32:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:20,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:20,113 INFO L225 Difference]: With dead ends: 7598 [2022-03-01 15:32:20,113 INFO L226 Difference]: Without dead ends: 7301 [2022-03-01 15:32:20,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:32:20,123 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 161 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:20,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 1794 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:20,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-03-01 15:32:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6518. [2022-03-01 15:32:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.7925425809421514) internal successors, (18199), 6517 states have internal predecessors, (18199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18199 transitions. [2022-03-01 15:32:20,263 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18199 transitions. Word has length 91 [2022-03-01 15:32:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:20,263 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18199 transitions. [2022-03-01 15:32:20,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18199 transitions. [2022-03-01 15:32:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:20,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:20,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:20,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:32:20,279 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash 86805253, now seen corresponding path program 5 times [2022-03-01 15:32:20,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:20,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967615378] [2022-03-01 15:32:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:20,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:20,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:20,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967615378] [2022-03-01 15:32:20,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967615378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:20,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:20,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:20,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821438444] [2022-03-01 15:32:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:20,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:20,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:20,386 INFO L87 Difference]: Start difference. First operand 6518 states and 18199 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:20,620 INFO L93 Difference]: Finished difference Result 7509 states and 20816 transitions. [2022-03-01 15:32:20,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:20,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:20,635 INFO L225 Difference]: With dead ends: 7509 [2022-03-01 15:32:20,636 INFO L226 Difference]: Without dead ends: 7243 [2022-03-01 15:32:20,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:20,636 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 123 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:20,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1755 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-03-01 15:32:20,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-03-01 15:32:20,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7919030823493327) internal successors, (18206), 6521 states have internal predecessors, (18206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18206 transitions. [2022-03-01 15:32:20,760 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18206 transitions. Word has length 91 [2022-03-01 15:32:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:20,761 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18206 transitions. [2022-03-01 15:32:20,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18206 transitions. [2022-03-01 15:32:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:20,772 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:20,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:20,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 15:32:20,773 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2082043219, now seen corresponding path program 6 times [2022-03-01 15:32:20,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:20,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571625840] [2022-03-01 15:32:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:20,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:20,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:20,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571625840] [2022-03-01 15:32:20,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571625840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:20,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:20,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:20,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672447340] [2022-03-01 15:32:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:20,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:20,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:20,890 INFO L87 Difference]: Start difference. First operand 6522 states and 18206 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:21,088 INFO L93 Difference]: Finished difference Result 7463 states and 20694 transitions. [2022-03-01 15:32:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:21,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:21,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:21,132 INFO L225 Difference]: With dead ends: 7463 [2022-03-01 15:32:21,132 INFO L226 Difference]: Without dead ends: 7188 [2022-03-01 15:32:21,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:21,133 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 106 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:21,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1874 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-03-01 15:32:21,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 6510. [2022-03-01 15:32:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6510 states, 6509 states have (on average 2.793209402365955) internal successors, (18181), 6509 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6510 states to 6510 states and 18181 transitions. [2022-03-01 15:32:21,214 INFO L78 Accepts]: Start accepts. Automaton has 6510 states and 18181 transitions. Word has length 91 [2022-03-01 15:32:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:21,214 INFO L470 AbstractCegarLoop]: Abstraction has 6510 states and 18181 transitions. [2022-03-01 15:32:21,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6510 states and 18181 transitions. [2022-03-01 15:32:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:21,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:21,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:21,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:32:21,224 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:21,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2000597709, now seen corresponding path program 7 times [2022-03-01 15:32:21,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:21,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545727390] [2022-03-01 15:32:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:21,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:21,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:21,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545727390] [2022-03-01 15:32:21,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545727390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:21,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:21,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:21,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133076543] [2022-03-01 15:32:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:21,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:21,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:21,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:21,290 INFO L87 Difference]: Start difference. First operand 6510 states and 18181 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:21,476 INFO L93 Difference]: Finished difference Result 9609 states and 26304 transitions. [2022-03-01 15:32:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:32:21,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:21,490 INFO L225 Difference]: With dead ends: 9609 [2022-03-01 15:32:21,490 INFO L226 Difference]: Without dead ends: 9161 [2022-03-01 15:32:21,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:21,491 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 510 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:21,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2192 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9161 states. [2022-03-01 15:32:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9161 to 6692. [2022-03-01 15:32:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 2.7921088028695262) internal successors, (18682), 6691 states have internal predecessors, (18682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 18682 transitions. [2022-03-01 15:32:21,657 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 18682 transitions. Word has length 91 [2022-03-01 15:32:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:21,658 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 18682 transitions. [2022-03-01 15:32:21,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 18682 transitions. [2022-03-01 15:32:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:21,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:21,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:21,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:32:21,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1572183189, now seen corresponding path program 1 times [2022-03-01 15:32:21,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:21,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210200481] [2022-03-01 15:32:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:21,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:21,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:21,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210200481] [2022-03-01 15:32:21,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210200481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:21,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:21,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:32:21,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968317776] [2022-03-01 15:32:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:21,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:32:21,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:32:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:21,698 INFO L87 Difference]: Start difference. First operand 6692 states and 18682 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:21,775 INFO L93 Difference]: Finished difference Result 9132 states and 24899 transitions. [2022-03-01 15:32:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:32:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:21,789 INFO L225 Difference]: With dead ends: 9132 [2022-03-01 15:32:21,790 INFO L226 Difference]: Without dead ends: 9089 [2022-03-01 15:32:21,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:21,790 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 112 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:21,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9089 states. [2022-03-01 15:32:22,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9089 to 6838. [2022-03-01 15:32:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 6837 states have (on average 2.7703671200819073) internal successors, (18941), 6837 states have internal predecessors, (18941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 18941 transitions. [2022-03-01 15:32:22,072 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 18941 transitions. Word has length 91 [2022-03-01 15:32:22,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:22,072 INFO L470 AbstractCegarLoop]: Abstraction has 6838 states and 18941 transitions. [2022-03-01 15:32:22,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 18941 transitions. [2022-03-01 15:32:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:22,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:22,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:22,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 15:32:22,084 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:22,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1923734219, now seen corresponding path program 1 times [2022-03-01 15:32:22,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:22,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501886718] [2022-03-01 15:32:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:22,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:22,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:22,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501886718] [2022-03-01 15:32:22,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501886718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:22,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:22,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:32:22,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706094931] [2022-03-01 15:32:22,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:22,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:32:22,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:22,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:32:22,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:22,105 INFO L87 Difference]: Start difference. First operand 6838 states and 18941 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:22,143 INFO L93 Difference]: Finished difference Result 9309 states and 25233 transitions. [2022-03-01 15:32:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:32:22,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:22,158 INFO L225 Difference]: With dead ends: 9309 [2022-03-01 15:32:22,159 INFO L226 Difference]: Without dead ends: 9122 [2022-03-01 15:32:22,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:22,159 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 118 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:22,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 324 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9122 states. [2022-03-01 15:32:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9122 to 6836. [2022-03-01 15:32:22,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 6835 states have (on average 2.7678127286027796) internal successors, (18918), 6835 states have internal predecessors, (18918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 18918 transitions. [2022-03-01 15:32:22,324 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 18918 transitions. Word has length 91 [2022-03-01 15:32:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:22,324 INFO L470 AbstractCegarLoop]: Abstraction has 6836 states and 18918 transitions. [2022-03-01 15:32:22,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 18918 transitions. [2022-03-01 15:32:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:22,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:22,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:22,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:32:22,334 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash 622771421, now seen corresponding path program 1 times [2022-03-01 15:32:22,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:22,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287785897] [2022-03-01 15:32:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:22,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:22,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287785897] [2022-03-01 15:32:22,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287785897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:22,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:22,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:32:22,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748209075] [2022-03-01 15:32:22,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:22,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:32:22,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:22,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:32:22,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:22,351 INFO L87 Difference]: Start difference. First operand 6836 states and 18918 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:22,379 INFO L93 Difference]: Finished difference Result 6570 states and 17521 transitions. [2022-03-01 15:32:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:32:22,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:22,389 INFO L225 Difference]: With dead ends: 6570 [2022-03-01 15:32:22,389 INFO L226 Difference]: Without dead ends: 6570 [2022-03-01 15:32:22,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:22,390 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 95 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:22,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:22,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-03-01 15:32:22,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 6205. [2022-03-01 15:32:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6832688588007736) internal successors, (16647), 6204 states have internal predecessors, (16647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16647 transitions. [2022-03-01 15:32:22,469 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16647 transitions. Word has length 91 [2022-03-01 15:32:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:22,469 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16647 transitions. [2022-03-01 15:32:22,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16647 transitions. [2022-03-01 15:32:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:22,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:22,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:22,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 15:32:22,477 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1752945699, now seen corresponding path program 1 times [2022-03-01 15:32:22,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:22,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364489290] [2022-03-01 15:32:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:22,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:22,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364489290] [2022-03-01 15:32:22,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364489290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:22,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:22,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:22,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7945956] [2022-03-01 15:32:22,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:22,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:22,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:22,582 INFO L87 Difference]: Start difference. First operand 6205 states and 16647 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:22,764 INFO L93 Difference]: Finished difference Result 7012 states and 18742 transitions. [2022-03-01 15:32:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:22,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:22,775 INFO L225 Difference]: With dead ends: 7012 [2022-03-01 15:32:22,775 INFO L226 Difference]: Without dead ends: 6752 [2022-03-01 15:32:22,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:22,775 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 117 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:22,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1148 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6752 states. [2022-03-01 15:32:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6752 to 6217. [2022-03-01 15:32:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6827541827541825) internal successors, (16676), 6216 states have internal predecessors, (16676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16676 transitions. [2022-03-01 15:32:22,867 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16676 transitions. Word has length 91 [2022-03-01 15:32:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:22,867 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16676 transitions. [2022-03-01 15:32:22,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16676 transitions. [2022-03-01 15:32:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:22,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:22,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:22,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 15:32:22,876 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 373173125, now seen corresponding path program 2 times [2022-03-01 15:32:22,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:22,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057786505] [2022-03-01 15:32:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:22,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:22,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:22,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057786505] [2022-03-01 15:32:22,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057786505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:22,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:22,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:22,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356254236] [2022-03-01 15:32:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:22,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:22,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:22,974 INFO L87 Difference]: Start difference. First operand 6217 states and 16676 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:23,214 INFO L93 Difference]: Finished difference Result 6982 states and 18664 transitions. [2022-03-01 15:32:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:23,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:23,227 INFO L225 Difference]: With dead ends: 6982 [2022-03-01 15:32:23,227 INFO L226 Difference]: Without dead ends: 6721 [2022-03-01 15:32:23,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:23,228 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 105 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:23,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-03-01 15:32:23,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6213. [2022-03-01 15:32:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6827108821635544) internal successors, (16665), 6212 states have internal predecessors, (16665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16665 transitions. [2022-03-01 15:32:23,348 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16665 transitions. Word has length 91 [2022-03-01 15:32:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:23,349 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16665 transitions. [2022-03-01 15:32:23,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16665 transitions. [2022-03-01 15:32:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:23,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:23,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:23,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 15:32:23,358 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:23,358 INFO L85 PathProgramCache]: Analyzing trace with hash -373819413, now seen corresponding path program 3 times [2022-03-01 15:32:23,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:23,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790087848] [2022-03-01 15:32:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:23,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:23,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:23,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790087848] [2022-03-01 15:32:23,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790087848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:23,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:23,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:23,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5088463] [2022-03-01 15:32:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:23,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:23,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:23,458 INFO L87 Difference]: Start difference. First operand 6213 states and 16665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:23,647 INFO L93 Difference]: Finished difference Result 7034 states and 18791 transitions. [2022-03-01 15:32:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:32:23,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:23,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:23,660 INFO L225 Difference]: With dead ends: 7034 [2022-03-01 15:32:23,660 INFO L226 Difference]: Without dead ends: 6745 [2022-03-01 15:32:23,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:32:23,661 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 142 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:23,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1384 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2022-03-01 15:32:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6209. [2022-03-01 15:32:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 6208 states have (on average 2.682667525773196) internal successors, (16654), 6208 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 16654 transitions. [2022-03-01 15:32:23,785 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 16654 transitions. Word has length 91 [2022-03-01 15:32:23,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:23,785 INFO L470 AbstractCegarLoop]: Abstraction has 6209 states and 16654 transitions. [2022-03-01 15:32:23,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 16654 transitions. [2022-03-01 15:32:23,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:23,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:23,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:23,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 15:32:23,796 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:23,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:23,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1638310291, now seen corresponding path program 4 times [2022-03-01 15:32:23,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:23,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369256164] [2022-03-01 15:32:23,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:23,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:23,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369256164] [2022-03-01 15:32:23,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369256164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:23,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:23,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:23,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779136562] [2022-03-01 15:32:23,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:23,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:23,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:23,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:23,895 INFO L87 Difference]: Start difference. First operand 6209 states and 16654 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:24,139 INFO L93 Difference]: Finished difference Result 7132 states and 19043 transitions. [2022-03-01 15:32:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:32:24,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:24,152 INFO L225 Difference]: With dead ends: 7132 [2022-03-01 15:32:24,152 INFO L226 Difference]: Without dead ends: 6841 [2022-03-01 15:32:24,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:32:24,153 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 166 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:24,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1899 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2022-03-01 15:32:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6213. [2022-03-01 15:32:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6820669671603348) internal successors, (16661), 6212 states have internal predecessors, (16661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16661 transitions. [2022-03-01 15:32:24,248 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16661 transitions. Word has length 91 [2022-03-01 15:32:24,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:24,248 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16661 transitions. [2022-03-01 15:32:24,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16661 transitions. [2022-03-01 15:32:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:24,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:24,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:24,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 15:32:24,258 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:24,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 240079225, now seen corresponding path program 5 times [2022-03-01 15:32:24,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:24,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839829998] [2022-03-01 15:32:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:24,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:24,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:24,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:24,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839829998] [2022-03-01 15:32:24,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839829998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:24,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:24,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:24,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573557319] [2022-03-01 15:32:24,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:24,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:24,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:24,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:24,379 INFO L87 Difference]: Start difference. First operand 6213 states and 16661 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:24,596 INFO L93 Difference]: Finished difference Result 7016 states and 18745 transitions. [2022-03-01 15:32:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:24,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:24,606 INFO L225 Difference]: With dead ends: 7016 [2022-03-01 15:32:24,607 INFO L226 Difference]: Without dead ends: 6756 [2022-03-01 15:32:24,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:24,609 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:24,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1853 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:24,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2022-03-01 15:32:24,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 6217. [2022-03-01 15:32:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6814671814671813) internal successors, (16668), 6216 states have internal predecessors, (16668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16668 transitions. [2022-03-01 15:32:24,700 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16668 transitions. Word has length 91 [2022-03-01 15:32:24,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:24,700 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16668 transitions. [2022-03-01 15:32:24,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16668 transitions. [2022-03-01 15:32:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:24,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:24,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:24,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 15:32:24,709 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1928769247, now seen corresponding path program 6 times [2022-03-01 15:32:24,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:24,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606617211] [2022-03-01 15:32:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:24,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:24,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606617211] [2022-03-01 15:32:24,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606617211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:24,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:24,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:24,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874422742] [2022-03-01 15:32:24,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:24,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:24,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:24,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:24,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:24,814 INFO L87 Difference]: Start difference. First operand 6217 states and 16668 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:25,032 INFO L93 Difference]: Finished difference Result 6962 states and 18601 transitions. [2022-03-01 15:32:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:25,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:25,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:25,044 INFO L225 Difference]: With dead ends: 6962 [2022-03-01 15:32:25,044 INFO L226 Difference]: Without dead ends: 6693 [2022-03-01 15:32:25,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:25,046 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 102 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:25,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1815 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-03-01 15:32:25,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6205. [2022-03-01 15:32:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6826241134751774) internal successors, (16643), 6204 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16643 transitions. [2022-03-01 15:32:25,152 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16643 transitions. Word has length 91 [2022-03-01 15:32:25,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:25,152 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16643 transitions. [2022-03-01 15:32:25,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16643 transitions. [2022-03-01 15:32:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:25,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:25,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:25,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 15:32:25,161 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:25,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash -249019585, now seen corresponding path program 7 times [2022-03-01 15:32:25,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:25,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975066591] [2022-03-01 15:32:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:25,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:25,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975066591] [2022-03-01 15:32:25,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975066591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:25,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:25,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:25,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353753905] [2022-03-01 15:32:25,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:25,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:25,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:25,283 INFO L87 Difference]: Start difference. First operand 6205 states and 16643 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:25,662 INFO L93 Difference]: Finished difference Result 7704 states and 20375 transitions. [2022-03-01 15:32:25,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:32:25,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:25,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:25,672 INFO L225 Difference]: With dead ends: 7704 [2022-03-01 15:32:25,672 INFO L226 Difference]: Without dead ends: 7278 [2022-03-01 15:32:25,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:32:25,673 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 363 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:25,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2368 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:25,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-03-01 15:32:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 6105. [2022-03-01 15:32:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 6104 states have (on average 2.686762778505898) internal successors, (16400), 6104 states have internal predecessors, (16400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 16400 transitions. [2022-03-01 15:32:25,778 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 16400 transitions. Word has length 91 [2022-03-01 15:32:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:25,778 INFO L470 AbstractCegarLoop]: Abstraction has 6105 states and 16400 transitions. [2022-03-01 15:32:25,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 16400 transitions. [2022-03-01 15:32:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:25,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:25,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:25,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 15:32:25,788 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:25,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1585866057, now seen corresponding path program 8 times [2022-03-01 15:32:25,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:25,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916258330] [2022-03-01 15:32:25,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:25,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:25,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:25,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916258330] [2022-03-01 15:32:25,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916258330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:25,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:25,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:25,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804053480] [2022-03-01 15:32:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:25,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:25,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:25,907 INFO L87 Difference]: Start difference. First operand 6105 states and 16400 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:26,211 INFO L93 Difference]: Finished difference Result 6956 states and 18591 transitions. [2022-03-01 15:32:26,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:32:26,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:26,222 INFO L225 Difference]: With dead ends: 6956 [2022-03-01 15:32:26,222 INFO L226 Difference]: Without dead ends: 6665 [2022-03-01 15:32:26,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:32:26,223 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 198 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:26,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2150 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:26,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2022-03-01 15:32:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6109. [2022-03-01 15:32:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.68614931237721) internal successors, (16407), 6108 states have internal predecessors, (16407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 16407 transitions. [2022-03-01 15:32:26,318 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 16407 transitions. Word has length 91 [2022-03-01 15:32:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:26,319 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 16407 transitions. [2022-03-01 15:32:26,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 16407 transitions. [2022-03-01 15:32:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:26,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:26,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:26,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 15:32:26,327 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash 292523459, now seen corresponding path program 9 times [2022-03-01 15:32:26,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:26,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814821446] [2022-03-01 15:32:26,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:26,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:26,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814821446] [2022-03-01 15:32:26,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814821446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:26,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:26,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:26,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656260667] [2022-03-01 15:32:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:26,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:26,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:26,425 INFO L87 Difference]: Start difference. First operand 6109 states and 16407 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:26,682 INFO L93 Difference]: Finished difference Result 6840 states and 18293 transitions. [2022-03-01 15:32:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:26,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:26,693 INFO L225 Difference]: With dead ends: 6840 [2022-03-01 15:32:26,693 INFO L226 Difference]: Without dead ends: 6580 [2022-03-01 15:32:26,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:26,694 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 149 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:26,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1897 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-03-01 15:32:26,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 6113. [2022-03-01 15:32:26,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 2.6855366492146597) internal successors, (16414), 6112 states have internal predecessors, (16414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 16414 transitions. [2022-03-01 15:32:26,784 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 16414 transitions. Word has length 91 [2022-03-01 15:32:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:26,784 INFO L470 AbstractCegarLoop]: Abstraction has 6113 states and 16414 transitions. [2022-03-01 15:32:26,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 16414 transitions. [2022-03-01 15:32:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:26,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:26,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:26,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 15:32:26,793 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:26,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1876325013, now seen corresponding path program 10 times [2022-03-01 15:32:26,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:26,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306206889] [2022-03-01 15:32:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:26,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:26,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:26,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306206889] [2022-03-01 15:32:26,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306206889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:26,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:26,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:26,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288415227] [2022-03-01 15:32:26,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:26,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:26,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:26,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:26,879 INFO L87 Difference]: Start difference. First operand 6113 states and 16414 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:27,066 INFO L93 Difference]: Finished difference Result 6786 states and 18149 transitions. [2022-03-01 15:32:27,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:32:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:27,077 INFO L225 Difference]: With dead ends: 6786 [2022-03-01 15:32:27,077 INFO L226 Difference]: Without dead ends: 6485 [2022-03-01 15:32:27,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:27,078 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 140 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:27,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1463 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6485 states. [2022-03-01 15:32:27,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6069. [2022-03-01 15:32:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6068 states have (on average 2.688529993408042) internal successors, (16314), 6068 states have internal predecessors, (16314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 16314 transitions. [2022-03-01 15:32:27,176 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 16314 transitions. Word has length 91 [2022-03-01 15:32:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:27,176 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 16314 transitions. [2022-03-01 15:32:27,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 16314 transitions. [2022-03-01 15:32:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:27,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:27,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:27,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 15:32:27,185 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:27,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1406793127, now seen corresponding path program 11 times [2022-03-01 15:32:27,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:27,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739940336] [2022-03-01 15:32:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:27,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:27,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739940336] [2022-03-01 15:32:27,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739940336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:27,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:27,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:27,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753392932] [2022-03-01 15:32:27,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:27,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:27,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:27,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:27,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:27,328 INFO L87 Difference]: Start difference. First operand 6069 states and 16314 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:27,535 INFO L93 Difference]: Finished difference Result 7195 states and 19271 transitions. [2022-03-01 15:32:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:27,554 INFO L225 Difference]: With dead ends: 7195 [2022-03-01 15:32:27,554 INFO L226 Difference]: Without dead ends: 6935 [2022-03-01 15:32:27,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:27,556 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 131 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:27,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1456 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:27,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-03-01 15:32:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6089. [2022-03-01 15:32:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.6880749014454666) internal successors, (16365), 6088 states have internal predecessors, (16365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16365 transitions. [2022-03-01 15:32:27,666 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16365 transitions. Word has length 91 [2022-03-01 15:32:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:27,666 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16365 transitions. [2022-03-01 15:32:27,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16365 transitions. [2022-03-01 15:32:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:27,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:27,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:27,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 15:32:27,679 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash -762055345, now seen corresponding path program 12 times [2022-03-01 15:32:27,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:27,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730714343] [2022-03-01 15:32:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:27,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:27,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730714343] [2022-03-01 15:32:27,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730714343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:27,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:27,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:27,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989572744] [2022-03-01 15:32:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:27,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:27,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:27,767 INFO L87 Difference]: Start difference. First operand 6089 states and 16365 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:28,008 INFO L93 Difference]: Finished difference Result 7165 states and 19193 transitions. [2022-03-01 15:32:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:28,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:28,022 INFO L225 Difference]: With dead ends: 7165 [2022-03-01 15:32:28,022 INFO L226 Difference]: Without dead ends: 6904 [2022-03-01 15:32:28,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:28,023 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 116 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:28,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 1844 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2022-03-01 15:32:28,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 6085. [2022-03-01 15:32:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.6880341880341883) internal successors, (16354), 6084 states have internal predecessors, (16354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16354 transitions. [2022-03-01 15:32:28,136 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16354 transitions. Word has length 91 [2022-03-01 15:32:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:28,137 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16354 transitions. [2022-03-01 15:32:28,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16354 transitions. [2022-03-01 15:32:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:28,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:28,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:28,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 15:32:28,147 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1509047883, now seen corresponding path program 13 times [2022-03-01 15:32:28,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:28,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024010550] [2022-03-01 15:32:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:28,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:28,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:28,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024010550] [2022-03-01 15:32:28,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024010550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:28,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:28,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:28,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871983512] [2022-03-01 15:32:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:28,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:28,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:28,240 INFO L87 Difference]: Start difference. First operand 6085 states and 16354 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:28,472 INFO L93 Difference]: Finished difference Result 7249 states and 19408 transitions. [2022-03-01 15:32:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:32:28,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:28,482 INFO L225 Difference]: With dead ends: 7249 [2022-03-01 15:32:28,482 INFO L226 Difference]: Without dead ends: 6960 [2022-03-01 15:32:28,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:32:28,483 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 154 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:28,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1870 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-03-01 15:32:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6081. [2022-03-01 15:32:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 2.6879934210526315) internal successors, (16343), 6080 states have internal predecessors, (16343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 16343 transitions. [2022-03-01 15:32:28,568 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 16343 transitions. Word has length 91 [2022-03-01 15:32:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:28,568 INFO L470 AbstractCegarLoop]: Abstraction has 6081 states and 16343 transitions. [2022-03-01 15:32:28,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 16343 transitions. [2022-03-01 15:32:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:28,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:28,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:28,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 15:32:28,576 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1521428535, now seen corresponding path program 14 times [2022-03-01 15:32:28,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:28,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865847523] [2022-03-01 15:32:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:28,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:28,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:28,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865847523] [2022-03-01 15:32:28,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865847523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:28,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:28,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:28,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756132350] [2022-03-01 15:32:28,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:28,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:28,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:28,667 INFO L87 Difference]: Start difference. First operand 6081 states and 16343 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:28,898 INFO L93 Difference]: Finished difference Result 7239 states and 19363 transitions. [2022-03-01 15:32:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:32:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:28,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:28,908 INFO L225 Difference]: With dead ends: 7239 [2022-03-01 15:32:28,908 INFO L226 Difference]: Without dead ends: 6948 [2022-03-01 15:32:28,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:28,909 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 172 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:28,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1512 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:28,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2022-03-01 15:32:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 6085. [2022-03-01 15:32:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-03-01 15:32:28,993 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-03-01 15:32:28,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:28,994 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-03-01 15:32:28,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:28,994 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-03-01 15:32:29,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:29,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:29,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:29,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 15:32:29,001 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -895149245, now seen corresponding path program 15 times [2022-03-01 15:32:29,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:29,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699156568] [2022-03-01 15:32:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:29,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:29,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:29,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699156568] [2022-03-01 15:32:29,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699156568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:29,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:29,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:29,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142353358] [2022-03-01 15:32:29,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:29,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:29,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:29,091 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:29,323 INFO L93 Difference]: Finished difference Result 7155 states and 19153 transitions. [2022-03-01 15:32:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:29,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:29,335 INFO L225 Difference]: With dead ends: 7155 [2022-03-01 15:32:29,336 INFO L226 Difference]: Without dead ends: 6895 [2022-03-01 15:32:29,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:29,336 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 146 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:29,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1664 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:29,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-03-01 15:32:29,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6089. [2022-03-01 15:32:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.686760840998686) internal successors, (16357), 6088 states have internal predecessors, (16357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16357 transitions. [2022-03-01 15:32:29,437 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16357 transitions. Word has length 91 [2022-03-01 15:32:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:29,438 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16357 transitions. [2022-03-01 15:32:29,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16357 transitions. [2022-03-01 15:32:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:29,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:29,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:29,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 15:32:29,446 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:29,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:29,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1230969579, now seen corresponding path program 16 times [2022-03-01 15:32:29,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:29,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340159511] [2022-03-01 15:32:29,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:29,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:29,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340159511] [2022-03-01 15:32:29,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340159511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:29,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:29,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:29,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886145456] [2022-03-01 15:32:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:29,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:29,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:29,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:29,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:29,535 INFO L87 Difference]: Start difference. First operand 6089 states and 16357 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:29,713 INFO L93 Difference]: Finished difference Result 7117 states and 19053 transitions. [2022-03-01 15:32:29,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:29,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:29,724 INFO L225 Difference]: With dead ends: 7117 [2022-03-01 15:32:29,724 INFO L226 Difference]: Without dead ends: 6848 [2022-03-01 15:32:29,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:29,725 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 117 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:29,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1154 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2022-03-01 15:32:29,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6077. [2022-03-01 15:32:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.6879526003949965) internal successors, (16332), 6076 states have internal predecessors, (16332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 16332 transitions. [2022-03-01 15:32:29,808 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 16332 transitions. Word has length 91 [2022-03-01 15:32:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:29,808 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 16332 transitions. [2022-03-01 15:32:29,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 16332 transitions. [2022-03-01 15:32:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:29,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:29,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:29,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 15:32:29,816 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1849223639, now seen corresponding path program 17 times [2022-03-01 15:32:29,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:29,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100264506] [2022-03-01 15:32:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:29,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:29,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:29,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100264506] [2022-03-01 15:32:29,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100264506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:29,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:29,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:29,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570992095] [2022-03-01 15:32:29,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:29,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:29,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:29,899 INFO L87 Difference]: Start difference. First operand 6077 states and 16332 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:30,097 INFO L93 Difference]: Finished difference Result 7099 states and 19003 transitions. [2022-03-01 15:32:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:32:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:30,110 INFO L225 Difference]: With dead ends: 7099 [2022-03-01 15:32:30,110 INFO L226 Difference]: Without dead ends: 6839 [2022-03-01 15:32:30,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:30,110 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 180 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:30,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1960 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2022-03-01 15:32:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6093. [2022-03-01 15:32:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 6092 states have (on average 2.687458962573867) internal successors, (16372), 6092 states have internal predecessors, (16372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 16372 transitions. [2022-03-01 15:32:30,195 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 16372 transitions. Word has length 91 [2022-03-01 15:32:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:30,196 INFO L470 AbstractCegarLoop]: Abstraction has 6093 states and 16372 transitions. [2022-03-01 15:32:30,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 16372 transitions. [2022-03-01 15:32:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:30,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:30,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:30,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 15:32:30,204 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash 276895185, now seen corresponding path program 18 times [2022-03-01 15:32:30,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:30,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022708613] [2022-03-01 15:32:30,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:30,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:30,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:30,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022708613] [2022-03-01 15:32:30,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022708613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:30,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:30,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:30,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389114794] [2022-03-01 15:32:30,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:30,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:30,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:30,317 INFO L87 Difference]: Start difference. First operand 6093 states and 16372 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:30,551 INFO L93 Difference]: Finished difference Result 7073 states and 18936 transitions. [2022-03-01 15:32:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:30,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:30,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:30,562 INFO L225 Difference]: With dead ends: 7073 [2022-03-01 15:32:30,562 INFO L226 Difference]: Without dead ends: 6812 [2022-03-01 15:32:30,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:30,563 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 191 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:30,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1591 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-03-01 15:32:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 6089. [2022-03-01 15:32:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.687417871222076) internal successors, (16361), 6088 states have internal predecessors, (16361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16361 transitions. [2022-03-01 15:32:30,654 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16361 transitions. Word has length 91 [2022-03-01 15:32:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:30,654 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16361 transitions. [2022-03-01 15:32:30,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16361 transitions. [2022-03-01 15:32:30,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:30,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:30,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:30,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 15:32:30,663 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:30,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash -470097353, now seen corresponding path program 19 times [2022-03-01 15:32:30,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:30,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194215671] [2022-03-01 15:32:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:30,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:30,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:30,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194215671] [2022-03-01 15:32:30,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194215671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:30,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:30,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:30,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416015188] [2022-03-01 15:32:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:30,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:30,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:30,761 INFO L87 Difference]: Start difference. First operand 6089 states and 16361 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:30,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:30,983 INFO L93 Difference]: Finished difference Result 7097 states and 18998 transitions. [2022-03-01 15:32:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:32:30,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:30,992 INFO L225 Difference]: With dead ends: 7097 [2022-03-01 15:32:30,992 INFO L226 Difference]: Without dead ends: 6808 [2022-03-01 15:32:30,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:30,993 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 226 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:30,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2022-03-01 15:32:31,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6085. [2022-03-01 15:32:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-03-01 15:32:31,063 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-03-01 15:32:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:31,064 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-03-01 15:32:31,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-03-01 15:32:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:31,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:31,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:31,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 15:32:31,070 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash -213851739, now seen corresponding path program 20 times [2022-03-01 15:32:31,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:31,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176244429] [2022-03-01 15:32:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:31,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:31,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:31,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176244429] [2022-03-01 15:32:31,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176244429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:31,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:31,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:31,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030350264] [2022-03-01 15:32:31,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:31,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:31,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:31,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:31,144 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:31,371 INFO L93 Difference]: Finished difference Result 7662 states and 20347 transitions. [2022-03-01 15:32:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:32:31,372 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:31,381 INFO L225 Difference]: With dead ends: 7662 [2022-03-01 15:32:31,381 INFO L226 Difference]: Without dead ends: 7229 [2022-03-01 15:32:31,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:31,382 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 389 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:31,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2317 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2022-03-01 15:32:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 5993. [2022-03-01 15:32:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5993 states, 5992 states have (on average 2.6899198931909214) internal successors, (16118), 5992 states have internal predecessors, (16118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5993 states to 5993 states and 16118 transitions. [2022-03-01 15:32:31,456 INFO L78 Accepts]: Start accepts. Automaton has 5993 states and 16118 transitions. Word has length 91 [2022-03-01 15:32:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:31,456 INFO L470 AbstractCegarLoop]: Abstraction has 5993 states and 16118 transitions. [2022-03-01 15:32:31,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5993 states and 16118 transitions. [2022-03-01 15:32:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:31,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:31,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:31,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 15:32:31,463 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:31,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash 882655945, now seen corresponding path program 1 times [2022-03-01 15:32:31,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:31,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282474236] [2022-03-01 15:32:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:31,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:31,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282474236] [2022-03-01 15:32:31,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282474236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:31,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:31,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:32:31,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590314916] [2022-03-01 15:32:31,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:31,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:32:31,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:31,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:32:31,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:31,477 INFO L87 Difference]: Start difference. First operand 5993 states and 16118 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:31,497 INFO L93 Difference]: Finished difference Result 5339 states and 14002 transitions. [2022-03-01 15:32:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:32:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:31,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:31,503 INFO L225 Difference]: With dead ends: 5339 [2022-03-01 15:32:31,503 INFO L226 Difference]: Without dead ends: 5339 [2022-03-01 15:32:31,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:32:31,504 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 93 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:31,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 190 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-03-01 15:32:31,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-03-01 15:32:31,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.623079805170476) internal successors, (14002), 5338 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14002 transitions. [2022-03-01 15:32:31,560 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14002 transitions. Word has length 91 [2022-03-01 15:32:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:31,560 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14002 transitions. [2022-03-01 15:32:31,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14002 transitions. [2022-03-01 15:32:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:31,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:31,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:31,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 15:32:31,565 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:31,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:31,566 INFO L85 PathProgramCache]: Analyzing trace with hash -694011287, now seen corresponding path program 1 times [2022-03-01 15:32:31,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:31,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998568553] [2022-03-01 15:32:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:31,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:31,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:31,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998568553] [2022-03-01 15:32:31,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998568553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:31,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:31,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:31,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043667871] [2022-03-01 15:32:31,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:31,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:31,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:31,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:31,658 INFO L87 Difference]: Start difference. First operand 5339 states and 14002 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:31,834 INFO L93 Difference]: Finished difference Result 5930 states and 15498 transitions. [2022-03-01 15:32:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:32:31,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:31,841 INFO L225 Difference]: With dead ends: 5930 [2022-03-01 15:32:31,841 INFO L226 Difference]: Without dead ends: 5651 [2022-03-01 15:32:31,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:32:31,843 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 133 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:31,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1164 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-03-01 15:32:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5347. [2022-03-01 15:32:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.6225215114104) internal successors, (14020), 5346 states have internal predecessors, (14020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14020 transitions. [2022-03-01 15:32:31,904 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14020 transitions. Word has length 91 [2022-03-01 15:32:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:31,904 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14020 transitions. [2022-03-01 15:32:31,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14020 transitions. [2022-03-01 15:32:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:31,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:31,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:31,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 15:32:31,910 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:31,910 INFO L85 PathProgramCache]: Analyzing trace with hash -985717315, now seen corresponding path program 2 times [2022-03-01 15:32:31,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:31,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046439420] [2022-03-01 15:32:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:32,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:32,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046439420] [2022-03-01 15:32:32,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046439420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:32,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:32,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:32,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329613909] [2022-03-01 15:32:32,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:32,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:32,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:32,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:32,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:32,010 INFO L87 Difference]: Start difference. First operand 5347 states and 14020 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:32,200 INFO L93 Difference]: Finished difference Result 5864 states and 15324 transitions. [2022-03-01 15:32:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:32,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:32,208 INFO L225 Difference]: With dead ends: 5864 [2022-03-01 15:32:32,208 INFO L226 Difference]: Without dead ends: 5610 [2022-03-01 15:32:32,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:32,210 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 100 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:32,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1300 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-03-01 15:32:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5351. [2022-03-01 15:32:32,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621869158878505) internal successors, (14027), 5350 states have internal predecessors, (14027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14027 transitions. [2022-03-01 15:32:32,293 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14027 transitions. Word has length 91 [2022-03-01 15:32:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:32,294 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14027 transitions. [2022-03-01 15:32:32,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14027 transitions. [2022-03-01 15:32:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:32,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:32,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:32,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 15:32:32,300 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1140401509, now seen corresponding path program 3 times [2022-03-01 15:32:32,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:32,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843017241] [2022-03-01 15:32:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:32,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:32,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843017241] [2022-03-01 15:32:32,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843017241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:32,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:32,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:32,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330902892] [2022-03-01 15:32:32,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:32,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:32,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:32,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:32,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:32,394 INFO L87 Difference]: Start difference. First operand 5351 states and 14027 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:32,590 INFO L93 Difference]: Finished difference Result 5826 states and 15224 transitions. [2022-03-01 15:32:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:32,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:32,599 INFO L225 Difference]: With dead ends: 5826 [2022-03-01 15:32:32,599 INFO L226 Difference]: Without dead ends: 5567 [2022-03-01 15:32:32,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:32,600 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 87 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:32,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1113 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2022-03-01 15:32:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5343. [2022-03-01 15:32:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6224260576563085) internal successors, (14009), 5342 states have internal predecessors, (14009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14009 transitions. [2022-03-01 15:32:32,677 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14009 transitions. Word has length 91 [2022-03-01 15:32:32,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:32,677 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14009 transitions. [2022-03-01 15:32:32,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14009 transitions. [2022-03-01 15:32:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:32,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:32,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:32,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 15:32:32,685 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash 863471305, now seen corresponding path program 4 times [2022-03-01 15:32:32,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:32,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327062486] [2022-03-01 15:32:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:32,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:32,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:32,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327062486] [2022-03-01 15:32:32,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327062486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:32,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:32,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:32,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624559075] [2022-03-01 15:32:32,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:32,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:32,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:32,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:32,781 INFO L87 Difference]: Start difference. First operand 5343 states and 14009 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:32,998 INFO L93 Difference]: Finished difference Result 5961 states and 15572 transitions. [2022-03-01 15:32:32,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:32:32,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:33,006 INFO L225 Difference]: With dead ends: 5961 [2022-03-01 15:32:33,006 INFO L226 Difference]: Without dead ends: 5676 [2022-03-01 15:32:33,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:32:33,007 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 137 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:33,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 1303 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-03-01 15:32:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5347. [2022-03-01 15:32:33,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.621773288439955) internal successors, (14016), 5346 states have internal predecessors, (14016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14016 transitions. [2022-03-01 15:32:33,072 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14016 transitions. Word has length 91 [2022-03-01 15:32:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:33,072 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14016 transitions. [2022-03-01 15:32:33,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14016 transitions. [2022-03-01 15:32:33,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:33,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:33,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:33,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 15:32:33,078 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:33,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1480867477, now seen corresponding path program 5 times [2022-03-01 15:32:33,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:33,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619258725] [2022-03-01 15:32:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:33,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:33,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:33,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619258725] [2022-03-01 15:32:33,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619258725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:33,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:33,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:33,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20390979] [2022-03-01 15:32:33,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:33,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:33,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:33,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:33,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:33,164 INFO L87 Difference]: Start difference. First operand 5347 states and 14016 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:33,405 INFO L93 Difference]: Finished difference Result 5872 states and 15342 transitions. [2022-03-01 15:32:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:33,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:33,412 INFO L225 Difference]: With dead ends: 5872 [2022-03-01 15:32:33,412 INFO L226 Difference]: Without dead ends: 5618 [2022-03-01 15:32:33,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:33,413 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 99 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:33,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1445 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-03-01 15:32:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 5351. [2022-03-01 15:32:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621121495327103) internal successors, (14023), 5350 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14023 transitions. [2022-03-01 15:32:33,475 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14023 transitions. Word has length 91 [2022-03-01 15:32:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:33,476 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14023 transitions. [2022-03-01 15:32:33,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14023 transitions. [2022-03-01 15:32:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:33,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:33,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:33,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 15:32:33,482 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -687980995, now seen corresponding path program 6 times [2022-03-01 15:32:33,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:33,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390301434] [2022-03-01 15:32:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:33,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:33,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390301434] [2022-03-01 15:32:33,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390301434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:33,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:33,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:33,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835501131] [2022-03-01 15:32:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:33,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:33,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:33,580 INFO L87 Difference]: Start difference. First operand 5351 states and 14023 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:33,764 INFO L93 Difference]: Finished difference Result 5826 states and 15220 transitions. [2022-03-01 15:32:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:33,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:33,772 INFO L225 Difference]: With dead ends: 5826 [2022-03-01 15:32:33,772 INFO L226 Difference]: Without dead ends: 5563 [2022-03-01 15:32:33,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:33,773 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:33,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1268 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-03-01 15:32:33,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5339. [2022-03-01 15:32:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6223304608467592) internal successors, (13998), 5338 states have internal predecessors, (13998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13998 transitions. [2022-03-01 15:32:33,852 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13998 transitions. Word has length 91 [2022-03-01 15:32:33,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:33,852 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13998 transitions. [2022-03-01 15:32:33,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13998 transitions. [2022-03-01 15:32:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:33,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:33,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:33,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 15:32:33,858 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:33,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:33,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1823646655, now seen corresponding path program 7 times [2022-03-01 15:32:33,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:33,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971627479] [2022-03-01 15:32:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:33,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:33,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:33,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971627479] [2022-03-01 15:32:33,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971627479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:33,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:33,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:33,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366895605] [2022-03-01 15:32:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:33,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:33,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:33,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:33,982 INFO L87 Difference]: Start difference. First operand 5339 states and 13998 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:34,220 INFO L93 Difference]: Finished difference Result 5957 states and 15474 transitions. [2022-03-01 15:32:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:32:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:34,228 INFO L225 Difference]: With dead ends: 5957 [2022-03-01 15:32:34,228 INFO L226 Difference]: Without dead ends: 5537 [2022-03-01 15:32:34,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:34,228 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 244 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:34,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1340 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2022-03-01 15:32:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5204. [2022-03-01 15:32:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5203 states have (on average 2.6263694022679225) internal successors, (13665), 5203 states have internal predecessors, (13665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13665 transitions. [2022-03-01 15:32:34,319 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13665 transitions. Word has length 91 [2022-03-01 15:32:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:34,319 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 13665 transitions. [2022-03-01 15:32:34,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13665 transitions. [2022-03-01 15:32:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:34,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:34,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:34,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 15:32:34,325 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash 975520439, now seen corresponding path program 8 times [2022-03-01 15:32:34,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:34,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9814776] [2022-03-01 15:32:34,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:34,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:34,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9814776] [2022-03-01 15:32:34,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9814776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:34,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:34,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:34,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163227529] [2022-03-01 15:32:34,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:34,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:34,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:34,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:34,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:34,420 INFO L87 Difference]: Start difference. First operand 5204 states and 13665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:34,660 INFO L93 Difference]: Finished difference Result 5758 states and 15052 transitions. [2022-03-01 15:32:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:32:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:34,668 INFO L225 Difference]: With dead ends: 5758 [2022-03-01 15:32:34,668 INFO L226 Difference]: Without dead ends: 5473 [2022-03-01 15:32:34,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:34,670 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 148 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:34,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1650 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-03-01 15:32:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5208. [2022-03-01 15:32:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6256961782216246) internal successors, (13672), 5207 states have internal predecessors, (13672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13672 transitions. [2022-03-01 15:32:34,738 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13672 transitions. Word has length 91 [2022-03-01 15:32:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:34,738 INFO L470 AbstractCegarLoop]: Abstraction has 5208 states and 13672 transitions. [2022-03-01 15:32:34,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13672 transitions. [2022-03-01 15:32:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:34,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:34,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:34,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 15:32:34,744 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:34,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1592916611, now seen corresponding path program 9 times [2022-03-01 15:32:34,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:34,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76540512] [2022-03-01 15:32:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:34,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:34,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76540512] [2022-03-01 15:32:34,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76540512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:34,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:34,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:34,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408748972] [2022-03-01 15:32:34,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:34,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:34,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:34,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:34,807 INFO L87 Difference]: Start difference. First operand 5208 states and 13672 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:34,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:34,970 INFO L93 Difference]: Finished difference Result 5669 states and 14822 transitions. [2022-03-01 15:32:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:34,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:34,978 INFO L225 Difference]: With dead ends: 5669 [2022-03-01 15:32:34,978 INFO L226 Difference]: Without dead ends: 5415 [2022-03-01 15:32:34,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:34,979 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 105 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:34,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1486 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:34,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2022-03-01 15:32:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 5212. [2022-03-01 15:32:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 2.625023987718288) internal successors, (13679), 5211 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 13679 transitions. [2022-03-01 15:32:35,046 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 13679 transitions. Word has length 91 [2022-03-01 15:32:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:35,047 INFO L470 AbstractCegarLoop]: Abstraction has 5212 states and 13679 transitions. [2022-03-01 15:32:35,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 13679 transitions. [2022-03-01 15:32:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:35,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:35,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:35,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 15:32:35,052 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash -575931861, now seen corresponding path program 10 times [2022-03-01 15:32:35,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:35,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955560349] [2022-03-01 15:32:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:35,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:35,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:35,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955560349] [2022-03-01 15:32:35,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955560349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:35,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:35,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:35,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642590531] [2022-03-01 15:32:35,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:35,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:35,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:35,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:35,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:35,187 INFO L87 Difference]: Start difference. First operand 5212 states and 13679 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:35,341 INFO L93 Difference]: Finished difference Result 5623 states and 14700 transitions. [2022-03-01 15:32:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:32:35,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:35,349 INFO L225 Difference]: With dead ends: 5623 [2022-03-01 15:32:35,349 INFO L226 Difference]: Without dead ends: 5328 [2022-03-01 15:32:35,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:35,349 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 93 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:35,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 1105 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:35,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2022-03-01 15:32:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5168. [2022-03-01 15:32:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6280239984517126) internal successors, (13579), 5167 states have internal predecessors, (13579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13579 transitions. [2022-03-01 15:32:35,423 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13579 transitions. Word has length 91 [2022-03-01 15:32:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:35,423 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13579 transitions. [2022-03-01 15:32:35,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13579 transitions. [2022-03-01 15:32:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:35,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:35,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:35,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 15:32:35,429 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -886476235, now seen corresponding path program 11 times [2022-03-01 15:32:35,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:35,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480501561] [2022-03-01 15:32:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:35,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:35,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480501561] [2022-03-01 15:32:35,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480501561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:35,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:35,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:35,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101942911] [2022-03-01 15:32:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:35,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:35,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:35,525 INFO L87 Difference]: Start difference. First operand 5168 states and 13579 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:35,751 INFO L93 Difference]: Finished difference Result 5716 states and 14958 transitions. [2022-03-01 15:32:35,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:32:35,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:35,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:35,758 INFO L225 Difference]: With dead ends: 5716 [2022-03-01 15:32:35,758 INFO L226 Difference]: Without dead ends: 5437 [2022-03-01 15:32:35,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:32:35,759 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 143 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:35,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 1556 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-03-01 15:32:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5172. [2022-03-01 15:32:35,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5171 states have (on average 2.6273448075807386) internal successors, (13586), 5171 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 13586 transitions. [2022-03-01 15:32:35,828 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 13586 transitions. Word has length 91 [2022-03-01 15:32:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:35,829 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 13586 transitions. [2022-03-01 15:32:35,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:35,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 13586 transitions. [2022-03-01 15:32:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:35,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:35,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:35,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 15:32:35,835 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:35,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1178182263, now seen corresponding path program 12 times [2022-03-01 15:32:35,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:35,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27270180] [2022-03-01 15:32:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:35,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:35,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:35,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27270180] [2022-03-01 15:32:35,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27270180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:35,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:35,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:35,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561483923] [2022-03-01 15:32:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:35,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:35,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:35,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:35,910 INFO L87 Difference]: Start difference. First operand 5172 states and 13586 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:36,090 INFO L93 Difference]: Finished difference Result 5586 states and 14608 transitions. [2022-03-01 15:32:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:32:36,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:36,098 INFO L225 Difference]: With dead ends: 5586 [2022-03-01 15:32:36,098 INFO L226 Difference]: Without dead ends: 5332 [2022-03-01 15:32:36,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:36,099 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 115 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:36,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1044 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:36,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2022-03-01 15:32:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5176. [2022-03-01 15:32:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 2.6266666666666665) internal successors, (13593), 5175 states have internal predecessors, (13593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 13593 transitions. [2022-03-01 15:32:36,174 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 13593 transitions. Word has length 91 [2022-03-01 15:32:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:36,175 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 13593 transitions. [2022-03-01 15:32:36,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 13593 transitions. [2022-03-01 15:32:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:36,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:36,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:36,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 15:32:36,181 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:36,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 947936561, now seen corresponding path program 13 times [2022-03-01 15:32:36,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:36,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487539171] [2022-03-01 15:32:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:36,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:36,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487539171] [2022-03-01 15:32:36,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487539171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:36,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:36,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:36,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265203523] [2022-03-01 15:32:36,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:36,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:36,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:36,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:36,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:36,273 INFO L87 Difference]: Start difference. First operand 5176 states and 13593 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:36,432 INFO L93 Difference]: Finished difference Result 5564 states and 14552 transitions. [2022-03-01 15:32:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:36,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:36,441 INFO L225 Difference]: With dead ends: 5564 [2022-03-01 15:32:36,441 INFO L226 Difference]: Without dead ends: 5305 [2022-03-01 15:32:36,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:36,442 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 97 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:36,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1224 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2022-03-01 15:32:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 5168. [2022-03-01 15:32:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6272498548480745) internal successors, (13575), 5167 states have internal predecessors, (13575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13575 transitions. [2022-03-01 15:32:36,579 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13575 transitions. Word has length 91 [2022-03-01 15:32:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:36,579 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13575 transitions. [2022-03-01 15:32:36,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13575 transitions. [2022-03-01 15:32:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:36,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:36,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:36,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 15:32:36,584 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash 19479749, now seen corresponding path program 14 times [2022-03-01 15:32:36,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:36,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193855404] [2022-03-01 15:32:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:36,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:36,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193855404] [2022-03-01 15:32:36,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193855404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:36,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:36,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:36,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238034560] [2022-03-01 15:32:36,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:36,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:36,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:36,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:36,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:36,674 INFO L87 Difference]: Start difference. First operand 5168 states and 13575 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:36,951 INFO L93 Difference]: Finished difference Result 5780 states and 15039 transitions. [2022-03-01 15:32:36,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:32:36,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:36,965 INFO L225 Difference]: With dead ends: 5780 [2022-03-01 15:32:36,965 INFO L226 Difference]: Without dead ends: 5405 [2022-03-01 15:32:36,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:32:36,966 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 229 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:36,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1434 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:36,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-03-01 15:32:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5072. [2022-03-01 15:32:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.625714849142181) internal successors, (13315), 5071 states have internal predecessors, (13315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13315 transitions. [2022-03-01 15:32:37,048 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13315 transitions. Word has length 91 [2022-03-01 15:32:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:37,048 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13315 transitions. [2022-03-01 15:32:37,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13315 transitions. [2022-03-01 15:32:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:37,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:37,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:37,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 15:32:37,054 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:37,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash -129972745, now seen corresponding path program 15 times [2022-03-01 15:32:37,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:37,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340434069] [2022-03-01 15:32:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:37,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:37,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:37,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340434069] [2022-03-01 15:32:37,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340434069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:37,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:37,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:37,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545130509] [2022-03-01 15:32:37,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:37,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:37,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:37,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:37,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:37,143 INFO L87 Difference]: Start difference. First operand 5072 states and 13315 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:37,343 INFO L93 Difference]: Finished difference Result 5540 states and 14474 transitions. [2022-03-01 15:32:37,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:32:37,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:37,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:37,350 INFO L225 Difference]: With dead ends: 5540 [2022-03-01 15:32:37,350 INFO L226 Difference]: Without dead ends: 5261 [2022-03-01 15:32:37,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:32:37,351 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 135 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:37,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1297 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2022-03-01 15:32:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5076. [2022-03-01 15:32:37,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5075 states have (on average 2.625024630541872) internal successors, (13322), 5075 states have internal predecessors, (13322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 13322 transitions. [2022-03-01 15:32:37,463 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 13322 transitions. Word has length 91 [2022-03-01 15:32:37,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:37,464 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 13322 transitions. [2022-03-01 15:32:37,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 13322 transitions. [2022-03-01 15:32:37,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:37,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:37,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:37,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 15:32:37,479 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash -421678773, now seen corresponding path program 16 times [2022-03-01 15:32:37,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:37,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860802154] [2022-03-01 15:32:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:37,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:37,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860802154] [2022-03-01 15:32:37,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860802154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:37,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:37,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:37,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257352668] [2022-03-01 15:32:37,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:37,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:37,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:37,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:37,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:37,577 INFO L87 Difference]: Start difference. First operand 5076 states and 13322 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:37,746 INFO L93 Difference]: Finished difference Result 5474 states and 14300 transitions. [2022-03-01 15:32:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:37,755 INFO L225 Difference]: With dead ends: 5474 [2022-03-01 15:32:37,755 INFO L226 Difference]: Without dead ends: 5220 [2022-03-01 15:32:37,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:32:37,755 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 109 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:37,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 1305 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:37,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2022-03-01 15:32:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 5080. [2022-03-01 15:32:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 5079 states have (on average 2.624335499113999) internal successors, (13329), 5079 states have internal predecessors, (13329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 13329 transitions. [2022-03-01 15:32:37,826 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 13329 transitions. Word has length 91 [2022-03-01 15:32:37,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:37,827 INFO L470 AbstractCegarLoop]: Abstraction has 5080 states and 13329 transitions. [2022-03-01 15:32:37,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 13329 transitions. [2022-03-01 15:32:37,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:37,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:37,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:37,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 15:32:37,831 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:37,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1704440051, now seen corresponding path program 17 times [2022-03-01 15:32:37,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:37,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763294486] [2022-03-01 15:32:37,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:37,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:37,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:37,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763294486] [2022-03-01 15:32:37,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763294486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:37,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:37,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:37,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418858959] [2022-03-01 15:32:37,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:37,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:37,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:37,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:37,921 INFO L87 Difference]: Start difference. First operand 5080 states and 13329 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:38,085 INFO L93 Difference]: Finished difference Result 5436 states and 14200 transitions. [2022-03-01 15:32:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:38,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:38,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:38,092 INFO L225 Difference]: With dead ends: 5436 [2022-03-01 15:32:38,092 INFO L226 Difference]: Without dead ends: 5177 [2022-03-01 15:32:38,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-01 15:32:38,093 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 83 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:38,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1400 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:32:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2022-03-01 15:32:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 5072. [2022-03-01 15:32:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.6249260500887397) internal successors, (13311), 5071 states have internal predecessors, (13311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13311 transitions. [2022-03-01 15:32:38,147 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13311 transitions. Word has length 91 [2022-03-01 15:32:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:38,147 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13311 transitions. [2022-03-01 15:32:38,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13311 transitions. [2022-03-01 15:32:38,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:38,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:38,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:38,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 15:32:38,154 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:38,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1427509847, now seen corresponding path program 18 times [2022-03-01 15:32:38,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:38,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450900542] [2022-03-01 15:32:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:38,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:38,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:38,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450900542] [2022-03-01 15:32:38,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450900542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:38,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:38,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:38,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365117826] [2022-03-01 15:32:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:38,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:38,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:38,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:38,239 INFO L87 Difference]: Start difference. First operand 5072 states and 13311 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:38,401 INFO L93 Difference]: Finished difference Result 5431 states and 14188 transitions. [2022-03-01 15:32:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:32:38,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:38,408 INFO L225 Difference]: With dead ends: 5431 [2022-03-01 15:32:38,408 INFO L226 Difference]: Without dead ends: 5146 [2022-03-01 15:32:38,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:38,408 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 136 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:38,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 868 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2022-03-01 15:32:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 5041. [2022-03-01 15:32:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 5040 states have (on average 2.6246031746031746) internal successors, (13228), 5040 states have internal predecessors, (13228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 13228 transitions. [2022-03-01 15:32:38,459 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 13228 transitions. Word has length 91 [2022-03-01 15:32:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:38,460 INFO L470 AbstractCegarLoop]: Abstraction has 5041 states and 13228 transitions. [2022-03-01 15:32:38,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 13228 transitions. [2022-03-01 15:32:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:38,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:38,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:38,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 15:32:38,464 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2044906019, now seen corresponding path program 19 times [2022-03-01 15:32:38,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:38,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265563370] [2022-03-01 15:32:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:38,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:38,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:38,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265563370] [2022-03-01 15:32:38,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265563370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:38,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:38,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:38,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027392466] [2022-03-01 15:32:38,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:38,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:38,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:38,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:38,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:38,541 INFO L87 Difference]: Start difference. First operand 5041 states and 13228 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:38,709 INFO L93 Difference]: Finished difference Result 5369 states and 14026 transitions. [2022-03-01 15:32:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:32:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:38,719 INFO L225 Difference]: With dead ends: 5369 [2022-03-01 15:32:38,719 INFO L226 Difference]: Without dead ends: 5115 [2022-03-01 15:32:38,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-01 15:32:38,720 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 131 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:38,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1121 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2022-03-01 15:32:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5045. [2022-03-01 15:32:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 2.62390959555908) internal successors, (13235), 5044 states have internal predecessors, (13235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 13235 transitions. [2022-03-01 15:32:38,782 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 13235 transitions. Word has length 91 [2022-03-01 15:32:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:38,782 INFO L470 AbstractCegarLoop]: Abstraction has 5045 states and 13235 transitions. [2022-03-01 15:32:38,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 13235 transitions. [2022-03-01 15:32:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:32:38,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:38,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:38,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 15:32:38,787 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash -123942453, now seen corresponding path program 20 times [2022-03-01 15:32:38,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:38,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834542103] [2022-03-01 15:32:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:38,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:38,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834542103] [2022-03-01 15:32:38,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834542103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:38,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:38,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:32:38,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151738343] [2022-03-01 15:32:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:38,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:32:38,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:38,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:32:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:32:38,873 INFO L87 Difference]: Start difference. First operand 5045 states and 13235 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:39,020 INFO L93 Difference]: Finished difference Result 5296 states and 13836 transitions. [2022-03-01 15:32:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:32:39,020 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:32:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:39,027 INFO L225 Difference]: With dead ends: 5296 [2022-03-01 15:32:39,027 INFO L226 Difference]: Without dead ends: 4987 [2022-03-01 15:32:39,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-01 15:32:39,028 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 78 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:39,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 939 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:32:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2022-03-01 15:32:39,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4987. [2022-03-01 15:32:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 2.628158844765343) internal successors, (13104), 4986 states have internal predecessors, (13104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 13104 transitions. [2022-03-01 15:32:39,090 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 13104 transitions. Word has length 91 [2022-03-01 15:32:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:39,090 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 13104 transitions. [2022-03-01 15:32:39,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 13104 transitions. [2022-03-01 15:32:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:39,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:39,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:39,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 15:32:39,095 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 126758231, now seen corresponding path program 1 times [2022-03-01 15:32:39,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:39,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746425226] [2022-03-01 15:32:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:39,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:39,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746425226] [2022-03-01 15:32:39,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746425226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:39,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:39,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:39,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677980050] [2022-03-01 15:32:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:39,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:39,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:39,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:39,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:39,549 INFO L87 Difference]: Start difference. First operand 4987 states and 13104 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:42,588 INFO L93 Difference]: Finished difference Result 9961 states and 26285 transitions. [2022-03-01 15:32:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:32:42,588 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:42,599 INFO L225 Difference]: With dead ends: 9961 [2022-03-01 15:32:42,600 INFO L226 Difference]: Without dead ends: 9586 [2022-03-01 15:32:42,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1148, Invalid=3682, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:32:42,601 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 924 mSDsluCounter, 7611 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:42,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 7892 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9586 states. [2022-03-01 15:32:42,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9586 to 5479. [2022-03-01 15:32:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6369112814895947) internal successors, (14445), 5478 states have internal predecessors, (14445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14445 transitions. [2022-03-01 15:32:42,671 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14445 transitions. Word has length 135 [2022-03-01 15:32:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:42,672 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14445 transitions. [2022-03-01 15:32:42,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14445 transitions. [2022-03-01 15:32:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:42,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:42,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:42,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 15:32:42,677 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1274913931, now seen corresponding path program 2 times [2022-03-01 15:32:42,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:42,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264740403] [2022-03-01 15:32:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:43,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:43,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264740403] [2022-03-01 15:32:43,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264740403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:43,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:43,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:43,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344251837] [2022-03-01 15:32:43,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:43,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:43,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:43,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:43,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:43,134 INFO L87 Difference]: Start difference. First operand 5479 states and 14445 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:45,582 INFO L93 Difference]: Finished difference Result 10009 states and 26401 transitions. [2022-03-01 15:32:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:32:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:45,596 INFO L225 Difference]: With dead ends: 10009 [2022-03-01 15:32:45,596 INFO L226 Difference]: Without dead ends: 9718 [2022-03-01 15:32:45,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1014, Invalid=3408, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:32:45,597 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 907 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:45,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 7495 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:32:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2022-03-01 15:32:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 5483. [2022-03-01 15:32:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.636264137176213) internal successors, (14452), 5482 states have internal predecessors, (14452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14452 transitions. [2022-03-01 15:32:45,676 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14452 transitions. Word has length 135 [2022-03-01 15:32:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:45,676 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14452 transitions. [2022-03-01 15:32:45,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14452 transitions. [2022-03-01 15:32:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:45,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:45,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:45,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 15:32:45,682 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:45,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:45,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1566619959, now seen corresponding path program 3 times [2022-03-01 15:32:45,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:45,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814816174] [2022-03-01 15:32:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:45,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:46,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:46,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814816174] [2022-03-01 15:32:46,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814816174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:46,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:46,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:46,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464532905] [2022-03-01 15:32:46,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:46,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:46,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:46,142 INFO L87 Difference]: Start difference. First operand 5483 states and 14452 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:48,264 INFO L93 Difference]: Finished difference Result 9895 states and 26095 transitions. [2022-03-01 15:32:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:32:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:48,293 INFO L225 Difference]: With dead ends: 9895 [2022-03-01 15:32:48,293 INFO L226 Difference]: Without dead ends: 9629 [2022-03-01 15:32:48,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=757, Invalid=2665, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:32:48,307 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 835 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:48,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 6753 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:32:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9629 states. [2022-03-01 15:32:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9629 to 5487. [2022-03-01 15:32:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.635617936565804) internal successors, (14459), 5486 states have internal predecessors, (14459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14459 transitions. [2022-03-01 15:32:48,387 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14459 transitions. Word has length 135 [2022-03-01 15:32:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:48,388 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14459 transitions. [2022-03-01 15:32:48,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14459 transitions. [2022-03-01 15:32:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:48,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:48,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:48,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 15:32:48,394 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash 559498865, now seen corresponding path program 4 times [2022-03-01 15:32:48,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:48,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687102057] [2022-03-01 15:32:48,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:48,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:48,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:48,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687102057] [2022-03-01 15:32:48,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687102057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:48,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:48,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:48,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100989512] [2022-03-01 15:32:48,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:48,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:48,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:48,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:48,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:48,787 INFO L87 Difference]: Start difference. First operand 5487 states and 14459 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:50,941 INFO L93 Difference]: Finished difference Result 9857 states and 25995 transitions. [2022-03-01 15:32:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:32:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:50,957 INFO L225 Difference]: With dead ends: 9857 [2022-03-01 15:32:50,957 INFO L226 Difference]: Without dead ends: 9574 [2022-03-01 15:32:50,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=816, Invalid=2844, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:32:50,958 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 814 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 6744 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:50,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 6744 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:32:50,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9574 states. [2022-03-01 15:32:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9574 to 5467. [2022-03-01 15:32:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6366630076838637) internal successors, (14412), 5466 states have internal predecessors, (14412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14412 transitions. [2022-03-01 15:32:51,066 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14412 transitions. Word has length 135 [2022-03-01 15:32:51,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:51,067 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14412 transitions. [2022-03-01 15:32:51,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14412 transitions. [2022-03-01 15:32:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:51,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:51,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:51,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 15:32:51,074 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:51,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -169468329, now seen corresponding path program 5 times [2022-03-01 15:32:51,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:51,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473156563] [2022-03-01 15:32:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:51,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:51,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:51,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473156563] [2022-03-01 15:32:51,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473156563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:51,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:51,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:51,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262573165] [2022-03-01 15:32:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:51,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:51,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:51,507 INFO L87 Difference]: Start difference. First operand 5467 states and 14412 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:53,707 INFO L93 Difference]: Finished difference Result 10017 states and 26423 transitions. [2022-03-01 15:32:53,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:32:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:53,721 INFO L225 Difference]: With dead ends: 10017 [2022-03-01 15:32:53,721 INFO L226 Difference]: Without dead ends: 9726 [2022-03-01 15:32:53,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:32:53,722 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 936 mSDsluCounter, 6795 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:53,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 7086 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:32:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9726 states. [2022-03-01 15:32:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9726 to 5475. [2022-03-01 15:32:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-03-01 15:32:53,812 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-03-01 15:32:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:53,812 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-03-01 15:32:53,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-03-01 15:32:53,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:53,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:53,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:53,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 15:32:53,818 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:53,819 INFO L85 PathProgramCache]: Analyzing trace with hash -461174357, now seen corresponding path program 6 times [2022-03-01 15:32:53,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:53,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385026148] [2022-03-01 15:32:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:53,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:54,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:54,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385026148] [2022-03-01 15:32:54,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385026148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:54,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:54,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:54,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408163691] [2022-03-01 15:32:54,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:54,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:54,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:54,230 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:56,084 INFO L93 Difference]: Finished difference Result 9967 states and 26293 transitions. [2022-03-01 15:32:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:32:56,084 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:56,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:56,098 INFO L225 Difference]: With dead ends: 9967 [2022-03-01 15:32:56,098 INFO L226 Difference]: Without dead ends: 9701 [2022-03-01 15:32:56,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=777, Invalid=2763, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:32:56,099 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 844 mSDsluCounter, 7231 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 7502 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:56,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 7502 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:32:56,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9701 states. [2022-03-01 15:32:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9701 to 5479. [2022-03-01 15:32:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.635450894487039) internal successors, (14437), 5478 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14437 transitions. [2022-03-01 15:32:56,194 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14437 transitions. Word has length 135 [2022-03-01 15:32:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:56,194 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14437 transitions. [2022-03-01 15:32:56,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14437 transitions. [2022-03-01 15:32:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:56,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:56,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:56,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 15:32:56,200 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:56,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1664944467, now seen corresponding path program 7 times [2022-03-01 15:32:56,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:56,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657700810] [2022-03-01 15:32:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:56,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:56,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:56,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657700810] [2022-03-01 15:32:56,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657700810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:56,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:56,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:56,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343721030] [2022-03-01 15:32:56,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:56,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:56,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:56,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:56,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:56,544 INFO L87 Difference]: Start difference. First operand 5479 states and 14437 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:58,480 INFO L93 Difference]: Finished difference Result 9929 states and 26193 transitions. [2022-03-01 15:32:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:32:58,481 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:32:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:58,495 INFO L225 Difference]: With dead ends: 9929 [2022-03-01 15:32:58,495 INFO L226 Difference]: Without dead ends: 9658 [2022-03-01 15:32:58,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:32:58,515 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 841 mSDsluCounter, 6445 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 6740 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:58,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 6740 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:32:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9658 states. [2022-03-01 15:32:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9658 to 5471. [2022-03-01 15:32:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.636014625228519) internal successors, (14419), 5470 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14419 transitions. [2022-03-01 15:32:58,602 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14419 transitions. Word has length 135 [2022-03-01 15:32:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:58,603 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14419 transitions. [2022-03-01 15:32:58,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14419 transitions. [2022-03-01 15:32:58,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:32:58,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:58,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:58,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 15:32:58,612 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:58,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2037724633, now seen corresponding path program 8 times [2022-03-01 15:32:58,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:58,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313867958] [2022-03-01 15:32:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:59,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:59,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313867958] [2022-03-01 15:32:59,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313867958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:59,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:59,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:32:59,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478957922] [2022-03-01 15:32:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:59,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:32:59,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:59,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:32:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:32:59,084 INFO L87 Difference]: Start difference. First operand 5471 states and 14419 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:01,037 INFO L93 Difference]: Finished difference Result 10019 states and 26411 transitions. [2022-03-01 15:33:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:33:01,037 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:01,052 INFO L225 Difference]: With dead ends: 10019 [2022-03-01 15:33:01,053 INFO L226 Difference]: Without dead ends: 9722 [2022-03-01 15:33:01,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=933, Invalid=3227, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:33:01,054 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 918 mSDsluCounter, 6946 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:01,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 7212 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2022-03-01 15:33:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 5475. [2022-03-01 15:33:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6353671903544025) internal successors, (14426), 5474 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14426 transitions. [2022-03-01 15:33:01,155 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14426 transitions. Word has length 135 [2022-03-01 15:33:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:01,155 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14426 transitions. [2022-03-01 15:33:01,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14426 transitions. [2022-03-01 15:33:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:01,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:01,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:01,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 15:33:01,161 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:01,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash -378853147, now seen corresponding path program 9 times [2022-03-01 15:33:01,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:01,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249497558] [2022-03-01 15:33:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:01,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:01,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:01,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249497558] [2022-03-01 15:33:01,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249497558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:01,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:01,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:01,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546484875] [2022-03-01 15:33:01,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:01,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:01,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:01,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:01,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:01,605 INFO L87 Difference]: Start difference. First operand 5475 states and 14426 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:03,595 INFO L93 Difference]: Finished difference Result 9919 states and 26157 transitions. [2022-03-01 15:33:03,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:03,595 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:03,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:03,609 INFO L225 Difference]: With dead ends: 9919 [2022-03-01 15:33:03,609 INFO L226 Difference]: Without dead ends: 9653 [2022-03-01 15:33:03,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=809, Invalid=2851, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:03,610 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 842 mSDsluCounter, 7224 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:03,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 7495 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:03,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9653 states. [2022-03-01 15:33:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9653 to 5479. [2022-03-01 15:33:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.634720700985761) internal successors, (14433), 5478 states have internal predecessors, (14433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14433 transitions. [2022-03-01 15:33:03,706 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14433 transitions. Word has length 135 [2022-03-01 15:33:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:03,706 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14433 transitions. [2022-03-01 15:33:03,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14433 transitions. [2022-03-01 15:33:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:03,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:03,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:03,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 15:33:03,713 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:03,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:03,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1747265677, now seen corresponding path program 10 times [2022-03-01 15:33:03,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:03,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372957572] [2022-03-01 15:33:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:04,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:04,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372957572] [2022-03-01 15:33:04,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372957572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:04,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:04,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:04,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595253246] [2022-03-01 15:33:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:04,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:04,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:04,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:04,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:04,107 INFO L87 Difference]: Start difference. First operand 5479 states and 14433 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:06,146 INFO L93 Difference]: Finished difference Result 9849 states and 25969 transitions. [2022-03-01 15:33:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:06,146 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:06,160 INFO L225 Difference]: With dead ends: 9849 [2022-03-01 15:33:06,160 INFO L226 Difference]: Without dead ends: 9562 [2022-03-01 15:33:06,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=791, Invalid=2749, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:33:06,161 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 835 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 7030 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:06,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 7030 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:06,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2022-03-01 15:33:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 5455. [2022-03-01 15:33:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6364136413641366) internal successors, (14379), 5454 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:06,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14379 transitions. [2022-03-01 15:33:06,261 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14379 transitions. Word has length 135 [2022-03-01 15:33:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:06,261 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14379 transitions. [2022-03-01 15:33:06,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14379 transitions. [2022-03-01 15:33:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:06,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:06,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:06,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 15:33:06,269 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:06,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2085553163, now seen corresponding path program 11 times [2022-03-01 15:33:06,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:06,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527746731] [2022-03-01 15:33:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:06,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:06,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527746731] [2022-03-01 15:33:06,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527746731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:06,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:06,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:06,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779874741] [2022-03-01 15:33:06,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:06,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:06,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:06,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:06,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:06,619 INFO L87 Difference]: Start difference. First operand 5455 states and 14379 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:08,512 INFO L93 Difference]: Finished difference Result 10065 states and 26555 transitions. [2022-03-01 15:33:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:33:08,512 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:08,524 INFO L225 Difference]: With dead ends: 10065 [2022-03-01 15:33:08,524 INFO L226 Difference]: Without dead ends: 9774 [2022-03-01 15:33:08,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=969, Invalid=3191, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:33:08,531 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 908 mSDsluCounter, 6116 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 6410 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:08,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 6410 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:33:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2022-03-01 15:33:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 5475. [2022-03-01 15:33:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-03-01 15:33:08,610 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-03-01 15:33:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:08,611 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-03-01 15:33:08,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-03-01 15:33:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:08,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:08,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:08,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 15:33:08,617 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1917708105, now seen corresponding path program 12 times [2022-03-01 15:33:08,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:08,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359161838] [2022-03-01 15:33:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:09,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:09,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359161838] [2022-03-01 15:33:09,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359161838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:09,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:09,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:09,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462198365] [2022-03-01 15:33:09,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:09,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:09,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:09,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:09,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:09,037 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:10,538 INFO L93 Difference]: Finished difference Result 10031 states and 26469 transitions. [2022-03-01 15:33:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:10,538 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:10,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:10,555 INFO L225 Difference]: With dead ends: 10031 [2022-03-01 15:33:10,555 INFO L226 Difference]: Without dead ends: 9765 [2022-03-01 15:33:10,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=774, Invalid=2766, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:33:10,556 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 855 mSDsluCounter, 6490 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 6773 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:10,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 6773 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:33:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-03-01 15:33:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5479. [2022-03-01 15:33:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.635450894487039) internal successors, (14437), 5478 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14437 transitions. [2022-03-01 15:33:10,668 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14437 transitions. Word has length 135 [2022-03-01 15:33:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:10,668 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14437 transitions. [2022-03-01 15:33:10,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14437 transitions. [2022-03-01 15:33:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:10,676 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:10,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:10,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 15:33:10,676 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:10,677 INFO L85 PathProgramCache]: Analyzing trace with hash -251140367, now seen corresponding path program 13 times [2022-03-01 15:33:10,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:10,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30739456] [2022-03-01 15:33:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:10,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:11,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:11,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30739456] [2022-03-01 15:33:11,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30739456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:11,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:11,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:11,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456120012] [2022-03-01 15:33:11,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:11,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:11,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:11,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:11,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:11,157 INFO L87 Difference]: Start difference. First operand 5479 states and 14437 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:13,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:13,383 INFO L93 Difference]: Finished difference Result 9993 states and 26369 transitions. [2022-03-01 15:33:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:13,384 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:13,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:13,395 INFO L225 Difference]: With dead ends: 9993 [2022-03-01 15:33:13,396 INFO L226 Difference]: Without dead ends: 9722 [2022-03-01 15:33:13,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=824, Invalid=2836, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:13,396 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 850 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:13,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 7057 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:13,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2022-03-01 15:33:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 5471. [2022-03-01 15:33:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.636014625228519) internal successors, (14419), 5470 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14419 transitions. [2022-03-01 15:33:13,480 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14419 transitions. Word has length 135 [2022-03-01 15:33:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:13,481 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14419 transitions. [2022-03-01 15:33:13,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:13,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14419 transitions. [2022-03-01 15:33:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:13,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:13,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:13,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 15:33:13,487 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash 121639799, now seen corresponding path program 14 times [2022-03-01 15:33:13,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:13,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79244838] [2022-03-01 15:33:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:13,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:13,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79244838] [2022-03-01 15:33:13,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79244838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:13,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:13,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:13,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094914803] [2022-03-01 15:33:13,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:13,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:13,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:13,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:13,939 INFO L87 Difference]: Start difference. First operand 5471 states and 14419 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:15,789 INFO L93 Difference]: Finished difference Result 10163 states and 26807 transitions. [2022-03-01 15:33:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:33:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:15,803 INFO L225 Difference]: With dead ends: 10163 [2022-03-01 15:33:15,803 INFO L226 Difference]: Without dead ends: 9866 [2022-03-01 15:33:15,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=956, Invalid=3334, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:33:15,804 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 908 mSDsluCounter, 6961 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:15,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 7229 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:33:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2022-03-01 15:33:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 5475. [2022-03-01 15:33:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6353671903544025) internal successors, (14426), 5474 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14426 transitions. [2022-03-01 15:33:15,907 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14426 transitions. Word has length 135 [2022-03-01 15:33:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:15,907 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14426 transitions. [2022-03-01 15:33:15,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14426 transitions. [2022-03-01 15:33:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:15,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:15,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:15,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 15:33:15,914 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2000029315, now seen corresponding path program 15 times [2022-03-01 15:33:15,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:15,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140869340] [2022-03-01 15:33:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:15,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:16,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:16,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140869340] [2022-03-01 15:33:16,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140869340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:16,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:16,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:16,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30314539] [2022-03-01 15:33:16,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:16,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:16,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:16,238 INFO L87 Difference]: Start difference. First operand 5475 states and 14426 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:17,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:17,894 INFO L93 Difference]: Finished difference Result 10047 states and 26509 transitions. [2022-03-01 15:33:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:17,895 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:17,908 INFO L225 Difference]: With dead ends: 10047 [2022-03-01 15:33:17,908 INFO L226 Difference]: Without dead ends: 9781 [2022-03-01 15:33:17,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=804, Invalid=2856, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:17,909 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 869 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 6413 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:17,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 6413 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:33:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2022-03-01 15:33:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 5479. [2022-03-01 15:33:17,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.634720700985761) internal successors, (14433), 5478 states have internal predecessors, (14433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14433 transitions. [2022-03-01 15:33:18,002 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14433 transitions. Word has length 135 [2022-03-01 15:33:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:18,002 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14433 transitions. [2022-03-01 15:33:18,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14433 transitions. [2022-03-01 15:33:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:18,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:18,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:18,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 15:33:18,009 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:18,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash -168819157, now seen corresponding path program 16 times [2022-03-01 15:33:18,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:18,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234336262] [2022-03-01 15:33:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:18,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:18,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:18,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234336262] [2022-03-01 15:33:18,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234336262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:18,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:18,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:18,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918288164] [2022-03-01 15:33:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:18,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:18,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:18,403 INFO L87 Difference]: Start difference. First operand 5479 states and 14433 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:20,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:20,509 INFO L93 Difference]: Finished difference Result 9993 states and 26365 transitions. [2022-03-01 15:33:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:20,523 INFO L225 Difference]: With dead ends: 9993 [2022-03-01 15:33:20,523 INFO L226 Difference]: Without dead ends: 9718 [2022-03-01 15:33:20,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=796, Invalid=2744, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:33:20,530 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 838 mSDsluCounter, 6739 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 7028 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:20,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 7028 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9718 states. [2022-03-01 15:33:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9718 to 5467. [2022-03-01 15:33:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6359312111233075) internal successors, (14408), 5466 states have internal predecessors, (14408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:20,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14408 transitions. [2022-03-01 15:33:20,625 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14408 transitions. Word has length 135 [2022-03-01 15:33:20,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:20,626 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14408 transitions. [2022-03-01 15:33:20,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14408 transitions. [2022-03-01 15:33:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:20,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:20,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:20,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 15:33:20,633 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:20,634 INFO L85 PathProgramCache]: Analyzing trace with hash -788125209, now seen corresponding path program 17 times [2022-03-01 15:33:20,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:20,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043832471] [2022-03-01 15:33:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:21,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:21,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043832471] [2022-03-01 15:33:21,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043832471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:21,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:21,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:21,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139659765] [2022-03-01 15:33:21,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:21,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:21,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:21,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:21,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:21,174 INFO L87 Difference]: Start difference. First operand 5467 states and 14408 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:23,699 INFO L93 Difference]: Finished difference Result 10186 states and 26839 transitions. [2022-03-01 15:33:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:33:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:23,712 INFO L225 Difference]: With dead ends: 10186 [2022-03-01 15:33:23,712 INFO L226 Difference]: Without dead ends: 9796 [2022-03-01 15:33:23,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1129, Invalid=3841, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 15:33:23,714 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 973 mSDsluCounter, 7470 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 7720 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:23,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 7720 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9796 states. [2022-03-01 15:33:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9796 to 5479. [2022-03-01 15:33:23,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-03-01 15:33:23,796 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-03-01 15:33:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:23,796 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-03-01 15:33:23,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-03-01 15:33:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:23,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:23,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:23,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 15:33:23,803 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1181590245, now seen corresponding path program 18 times [2022-03-01 15:33:23,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:23,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047297056] [2022-03-01 15:33:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:24,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:24,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047297056] [2022-03-01 15:33:24,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047297056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:24,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:24,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:24,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467817687] [2022-03-01 15:33:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:24,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:24,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:24,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:24,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:24,260 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:26,372 INFO L93 Difference]: Finished difference Result 10043 states and 26465 transitions. [2022-03-01 15:33:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:33:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:26,386 INFO L225 Difference]: With dead ends: 10043 [2022-03-01 15:33:26,387 INFO L226 Difference]: Without dead ends: 9746 [2022-03-01 15:33:26,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=982, Invalid=3440, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:33:26,388 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 916 mSDsluCounter, 6247 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 6526 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:26,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 6526 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2022-03-01 15:33:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 5483. [2022-03-01 15:33:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-03-01 15:33:26,476 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-03-01 15:33:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:26,476 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-03-01 15:33:26,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-03-01 15:33:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:26,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:26,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:26,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 15:33:26,482 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:26,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash 696799271, now seen corresponding path program 19 times [2022-03-01 15:33:26,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:26,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661499933] [2022-03-01 15:33:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:26,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:26,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:26,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661499933] [2022-03-01 15:33:26,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661499933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:26,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:26,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:26,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522090099] [2022-03-01 15:33:26,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:26,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:26,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:26,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:26,919 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:28,613 INFO L93 Difference]: Finished difference Result 9943 states and 26211 transitions. [2022-03-01 15:33:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:28,613 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:28,627 INFO L225 Difference]: With dead ends: 9943 [2022-03-01 15:33:28,627 INFO L226 Difference]: Without dead ends: 9677 [2022-03-01 15:33:28,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=796, Invalid=2864, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:28,628 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 865 mSDsluCounter, 6815 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7091 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:28,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7091 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2022-03-01 15:33:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 5487. [2022-03-01 15:33:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-03-01 15:33:28,714 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-03-01 15:33:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:28,714 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-03-01 15:33:28,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-03-01 15:33:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:28,720 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:28,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:28,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 15:33:28,721 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1472049201, now seen corresponding path program 20 times [2022-03-01 15:33:28,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:28,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319872309] [2022-03-01 15:33:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:29,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:29,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319872309] [2022-03-01 15:33:29,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319872309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:29,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:29,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:29,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418295887] [2022-03-01 15:33:29,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:29,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:29,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:29,144 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:31,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:31,140 INFO L93 Difference]: Finished difference Result 9857 states and 25979 transitions. [2022-03-01 15:33:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:33:31,140 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:31,155 INFO L225 Difference]: With dead ends: 9857 [2022-03-01 15:33:31,155 INFO L226 Difference]: Without dead ends: 9526 [2022-03-01 15:33:31,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=766, Invalid=2656, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:33:31,156 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 838 mSDsluCounter, 6707 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 6993 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:31,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 6993 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:31,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2022-03-01 15:33:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 5419. [2022-03-01 15:33:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 2.635658914728682) internal successors, (14280), 5418 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 14280 transitions. [2022-03-01 15:33:31,252 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 14280 transitions. Word has length 135 [2022-03-01 15:33:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:31,252 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 14280 transitions. [2022-03-01 15:33:31,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 14280 transitions. [2022-03-01 15:33:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:31,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:31,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:31,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 15:33:31,258 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:31,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:31,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1972969897, now seen corresponding path program 21 times [2022-03-01 15:33:31,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:31,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663993877] [2022-03-01 15:33:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:31,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:31,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:31,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663993877] [2022-03-01 15:33:31,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663993877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:31,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:31,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:31,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802000657] [2022-03-01 15:33:31,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:31,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:31,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:31,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:31,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:31,689 INFO L87 Difference]: Start difference. First operand 5419 states and 14280 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:33,894 INFO L93 Difference]: Finished difference Result 10049 states and 26511 transitions. [2022-03-01 15:33:33,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:33:33,895 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:33,907 INFO L225 Difference]: With dead ends: 10049 [2022-03-01 15:33:33,907 INFO L226 Difference]: Without dead ends: 9758 [2022-03-01 15:33:33,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:33:33,908 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 923 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 7061 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:33,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 7061 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9758 states. [2022-03-01 15:33:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9758 to 5443. [2022-03-01 15:33:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.635428151414921) internal successors, (14342), 5442 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14342 transitions. [2022-03-01 15:33:33,980 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14342 transitions. Word has length 135 [2022-03-01 15:33:33,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:33,981 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14342 transitions. [2022-03-01 15:33:33,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14342 transitions. [2022-03-01 15:33:33,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:33,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:33,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:33,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 15:33:33,987 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2030291371, now seen corresponding path program 22 times [2022-03-01 15:33:33,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:33,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102757433] [2022-03-01 15:33:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:33,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:34,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:34,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102757433] [2022-03-01 15:33:34,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102757433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:34,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:34,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:34,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207571271] [2022-03-01 15:33:34,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:34,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:34,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:34,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:34,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:34,474 INFO L87 Difference]: Start difference. First operand 5443 states and 14342 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:36,291 INFO L93 Difference]: Finished difference Result 10063 states and 26541 transitions. [2022-03-01 15:33:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:36,291 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:36,306 INFO L225 Difference]: With dead ends: 10063 [2022-03-01 15:33:36,306 INFO L226 Difference]: Without dead ends: 9797 [2022-03-01 15:33:36,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=766, Invalid=2774, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:33:36,307 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 864 mSDsluCounter, 7253 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 7525 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:36,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 7525 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2022-03-01 15:33:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 5447. [2022-03-01 15:33:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.634777818582446) internal successors, (14349), 5446 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:36,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14349 transitions. [2022-03-01 15:33:36,398 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14349 transitions. Word has length 135 [2022-03-01 15:33:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:36,399 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14349 transitions. [2022-03-01 15:33:36,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14349 transitions. [2022-03-01 15:33:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:36,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:36,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:36,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 15:33:36,405 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:36,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash -138557101, now seen corresponding path program 23 times [2022-03-01 15:33:36,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:36,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345288245] [2022-03-01 15:33:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:36,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:36,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345288245] [2022-03-01 15:33:36,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345288245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:36,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:36,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:36,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528973039] [2022-03-01 15:33:36,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:36,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:36,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:36,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:36,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:36,910 INFO L87 Difference]: Start difference. First operand 5447 states and 14349 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:39,081 INFO L93 Difference]: Finished difference Result 10025 states and 26441 transitions. [2022-03-01 15:33:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:39,095 INFO L225 Difference]: With dead ends: 10025 [2022-03-01 15:33:39,095 INFO L226 Difference]: Without dead ends: 9754 [2022-03-01 15:33:39,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=829, Invalid=2831, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:39,096 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 846 mSDsluCounter, 7138 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 7423 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:39,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 7423 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9754 states. [2022-03-01 15:33:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9754 to 5439. [2022-03-01 15:33:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.635343876425156) internal successors, (14331), 5438 states have internal predecessors, (14331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14331 transitions. [2022-03-01 15:33:39,186 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14331 transitions. Word has length 135 [2022-03-01 15:33:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:39,186 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14331 transitions. [2022-03-01 15:33:39,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14331 transitions. [2022-03-01 15:33:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:39,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:39,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:39,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 15:33:39,193 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash 234223065, now seen corresponding path program 24 times [2022-03-01 15:33:39,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:39,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087892621] [2022-03-01 15:33:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:39,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:39,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:39,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087892621] [2022-03-01 15:33:39,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087892621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:39,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:39,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:39,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141785645] [2022-03-01 15:33:39,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:39,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:39,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:39,619 INFO L87 Difference]: Start difference. First operand 5439 states and 14331 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:42,047 INFO L93 Difference]: Finished difference Result 10195 states and 26879 transitions. [2022-03-01 15:33:42,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:33:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:42,061 INFO L225 Difference]: With dead ends: 10195 [2022-03-01 15:33:42,062 INFO L226 Difference]: Without dead ends: 9898 [2022-03-01 15:33:42,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=946, Invalid=3344, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:33:42,063 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 932 mSDsluCounter, 6986 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 7255 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:42,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 7255 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:33:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-03-01 15:33:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 5443. [2022-03-01 15:33:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6346931275266448) internal successors, (14338), 5442 states have internal predecessors, (14338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14338 transitions. [2022-03-01 15:33:42,139 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14338 transitions. Word has length 135 [2022-03-01 15:33:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:42,140 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14338 transitions. [2022-03-01 15:33:42,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14338 transitions. [2022-03-01 15:33:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:42,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:42,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:42,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 15:33:42,145 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:42,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2112612581, now seen corresponding path program 25 times [2022-03-01 15:33:42,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:42,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370992320] [2022-03-01 15:33:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:42,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:42,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:42,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370992320] [2022-03-01 15:33:42,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370992320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:42,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:42,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:42,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224244052] [2022-03-01 15:33:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:42,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:42,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:42,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:42,527 INFO L87 Difference]: Start difference. First operand 5443 states and 14338 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:44,277 INFO L93 Difference]: Finished difference Result 10079 states and 26581 transitions. [2022-03-01 15:33:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:44,290 INFO L225 Difference]: With dead ends: 10079 [2022-03-01 15:33:44,290 INFO L226 Difference]: Without dead ends: 9813 [2022-03-01 15:33:44,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=799, Invalid=2861, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:44,291 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 857 mSDsluCounter, 6508 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 6793 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:44,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 6793 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9813 states. [2022-03-01 15:33:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9813 to 5447. [2022-03-01 15:33:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6340433345574734) internal successors, (14345), 5446 states have internal predecessors, (14345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14345 transitions. [2022-03-01 15:33:44,373 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14345 transitions. Word has length 135 [2022-03-01 15:33:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:44,374 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14345 transitions. [2022-03-01 15:33:44,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:44,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14345 transitions. [2022-03-01 15:33:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:44,380 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:44,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:44,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 15:33:44,381 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:44,381 INFO L85 PathProgramCache]: Analyzing trace with hash -56235891, now seen corresponding path program 26 times [2022-03-01 15:33:44,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:44,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386929100] [2022-03-01 15:33:44,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:44,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:44,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:44,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386929100] [2022-03-01 15:33:44,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386929100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:44,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:44,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:44,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548364405] [2022-03-01 15:33:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:44,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:44,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:44,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:44,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:44,774 INFO L87 Difference]: Start difference. First operand 5447 states and 14345 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:46,801 INFO L93 Difference]: Finished difference Result 10025 states and 26437 transitions. [2022-03-01 15:33:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:33:46,801 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:46,815 INFO L225 Difference]: With dead ends: 10025 [2022-03-01 15:33:46,815 INFO L226 Difference]: Without dead ends: 9750 [2022-03-01 15:33:46,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=799, Invalid=2741, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:33:46,816 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 837 mSDsluCounter, 7135 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 7415 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:46,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 7415 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2022-03-01 15:33:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 5435. [2022-03-01 15:33:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.6352594773647406) internal successors, (14320), 5434 states have internal predecessors, (14320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:46,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14320 transitions. [2022-03-01 15:33:46,893 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14320 transitions. Word has length 135 [2022-03-01 15:33:46,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:46,893 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14320 transitions. [2022-03-01 15:33:46,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:46,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14320 transitions. [2022-03-01 15:33:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:46,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:46,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:46,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 15:33:46,899 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:46,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash -675541943, now seen corresponding path program 27 times [2022-03-01 15:33:46,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:46,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282742984] [2022-03-01 15:33:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:46,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:47,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:47,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282742984] [2022-03-01 15:33:47,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282742984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:47,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:47,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:47,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646666660] [2022-03-01 15:33:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:47,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:47,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:47,289 INFO L87 Difference]: Start difference. First operand 5435 states and 14320 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:49,483 INFO L93 Difference]: Finished difference Result 10362 states and 27307 transitions. [2022-03-01 15:33:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:33:49,483 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:49,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:49,496 INFO L225 Difference]: With dead ends: 10362 [2022-03-01 15:33:49,496 INFO L226 Difference]: Without dead ends: 9972 [2022-03-01 15:33:49,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1150, Invalid=3962, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:33:49,497 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 981 mSDsluCounter, 7138 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 7398 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:49,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 7398 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:33:49,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9972 states. [2022-03-01 15:33:49,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9972 to 5447. [2022-03-01 15:33:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-03-01 15:33:49,580 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-03-01 15:33:49,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:49,580 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-03-01 15:33:49,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-03-01 15:33:49,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:49,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:49,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:49,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 15:33:49,586 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:49,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1069006979, now seen corresponding path program 28 times [2022-03-01 15:33:49,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:49,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057768136] [2022-03-01 15:33:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:49,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:50,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:50,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057768136] [2022-03-01 15:33:50,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057768136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:50,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:50,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:50,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128375199] [2022-03-01 15:33:50,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:50,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:50,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:50,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:50,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:50,056 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:52,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:52,139 INFO L93 Difference]: Finished difference Result 10211 states and 26911 transitions. [2022-03-01 15:33:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:33:52,139 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:52,153 INFO L225 Difference]: With dead ends: 10211 [2022-03-01 15:33:52,153 INFO L226 Difference]: Without dead ends: 9914 [2022-03-01 15:33:52,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=978, Invalid=3444, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:33:52,154 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 936 mSDsluCounter, 6224 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:52,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 6511 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:52,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2022-03-01 15:33:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 5451. [2022-03-01 15:33:52,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-01 15:33:52,233 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-01 15:33:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:52,233 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-01 15:33:52,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-01 15:33:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:52,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:52,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:52,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 15:33:52,239 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash 809382537, now seen corresponding path program 29 times [2022-03-01 15:33:52,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:52,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968820653] [2022-03-01 15:33:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:52,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:52,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968820653] [2022-03-01 15:33:52,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968820653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:52,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:52,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:52,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834141416] [2022-03-01 15:33:52,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:52,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:52,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:52,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:52,675 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:54,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:54,598 INFO L93 Difference]: Finished difference Result 10095 states and 26613 transitions. [2022-03-01 15:33:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:33:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:54,612 INFO L225 Difference]: With dead ends: 10095 [2022-03-01 15:33:54,612 INFO L226 Difference]: Without dead ends: 9829 [2022-03-01 15:33:54,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=792, Invalid=2868, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:33:54,613 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 851 mSDsluCounter, 7241 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:54,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 7512 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2022-03-01 15:33:54,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5455. [2022-03-01 15:33:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-01 15:33:54,691 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-01 15:33:54,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:54,691 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-01 15:33:54,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-01 15:33:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:54,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:54,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:54,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 15:33:54,697 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1359465935, now seen corresponding path program 30 times [2022-03-01 15:33:54,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:54,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226665290] [2022-03-01 15:33:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:54,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:55,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:55,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226665290] [2022-03-01 15:33:55,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226665290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:55,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:55,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:55,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676277358] [2022-03-01 15:33:55,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:55,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:55,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:55,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:55,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:55,090 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:57,040 INFO L93 Difference]: Finished difference Result 10033 states and 26447 transitions. [2022-03-01 15:33:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:33:57,040 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:57,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:57,054 INFO L225 Difference]: With dead ends: 10033 [2022-03-01 15:33:57,054 INFO L226 Difference]: Without dead ends: 9738 [2022-03-01 15:33:57,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=771, Invalid=2651, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:33:57,055 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 844 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 7013 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:57,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 7013 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2022-03-01 15:33:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 5423. [2022-03-01 15:33:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.635005533013648) internal successors, (14287), 5422 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14287 transitions. [2022-03-01 15:33:57,146 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14287 transitions. Word has length 135 [2022-03-01 15:33:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:57,146 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14287 transitions. [2022-03-01 15:33:57,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14287 transitions. [2022-03-01 15:33:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:33:57,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:57,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:57,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 15:33:57,153 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:57,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:57,153 INFO L85 PathProgramCache]: Analyzing trace with hash 124138487, now seen corresponding path program 31 times [2022-03-01 15:33:57,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:57,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954840558] [2022-03-01 15:33:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:57,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:57,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:57,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954840558] [2022-03-01 15:33:57,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954840558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:57,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:57,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:33:57,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794396681] [2022-03-01 15:33:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:57,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:33:57,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:57,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:33:57,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:33:57,581 INFO L87 Difference]: Start difference. First operand 5423 states and 14287 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:59,959 INFO L93 Difference]: Finished difference Result 10396 states and 27301 transitions. [2022-03-01 15:33:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:33:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:33:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:59,972 INFO L225 Difference]: With dead ends: 10396 [2022-03-01 15:33:59,972 INFO L226 Difference]: Without dead ends: 9975 [2022-03-01 15:33:59,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1330, Invalid=4370, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:33:59,973 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1213 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:59,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1213 Valid, 7483 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:33:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9975 states. [2022-03-01 15:34:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9975 to 5427. [2022-03-01 15:34:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.6343531146332473) internal successors, (14294), 5426 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:00,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14294 transitions. [2022-03-01 15:34:00,053 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14294 transitions. Word has length 135 [2022-03-01 15:34:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:00,053 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14294 transitions. [2022-03-01 15:34:00,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14294 transitions. [2022-03-01 15:34:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:00,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:00,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:00,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 15:34:00,059 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1221358625, now seen corresponding path program 32 times [2022-03-01 15:34:00,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:00,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030189797] [2022-03-01 15:34:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:00,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:00,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030189797] [2022-03-01 15:34:00,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030189797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:00,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:00,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:00,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336101017] [2022-03-01 15:34:00,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:00,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:00,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:00,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:00,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:00,481 INFO L87 Difference]: Start difference. First operand 5427 states and 14294 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:03,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:03,037 INFO L93 Difference]: Finished difference Result 10194 states and 26841 transitions. [2022-03-01 15:34:03,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:34:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:03,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:03,127 INFO L225 Difference]: With dead ends: 10194 [2022-03-01 15:34:03,127 INFO L226 Difference]: Without dead ends: 9804 [2022-03-01 15:34:03,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:34:03,128 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 987 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 6668 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:03,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 6668 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9804 states. [2022-03-01 15:34:03,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9804 to 5439. [2022-03-01 15:34:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-03-01 15:34:03,211 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-03-01 15:34:03,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:03,211 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-03-01 15:34:03,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-03-01 15:34:03,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:03,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:03,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:03,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 15:34:03,218 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:03,218 INFO L85 PathProgramCache]: Analyzing trace with hash 76262421, now seen corresponding path program 33 times [2022-03-01 15:34:03,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:03,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191458477] [2022-03-01 15:34:03,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:03,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:03,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:03,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191458477] [2022-03-01 15:34:03,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191458477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:03,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:03,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:03,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168205431] [2022-03-01 15:34:03,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:03,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:03,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:03,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:03,693 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:05,834 INFO L93 Difference]: Finished difference Result 10051 states and 26467 transitions. [2022-03-01 15:34:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:05,835 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:05,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:05,849 INFO L225 Difference]: With dead ends: 10051 [2022-03-01 15:34:05,849 INFO L226 Difference]: Without dead ends: 9754 [2022-03-01 15:34:05,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=959, Invalid=3463, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:34:05,850 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 928 mSDsluCounter, 6977 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 7245 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:05,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 7245 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:34:05,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9754 states. [2022-03-01 15:34:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9754 to 5443. [2022-03-01 15:34:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-03-01 15:34:05,941 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-03-01 15:34:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:05,942 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-03-01 15:34:05,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-03-01 15:34:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:05,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:05,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:05,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 15:34:05,948 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:05,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1954651937, now seen corresponding path program 34 times [2022-03-01 15:34:05,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:05,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317989454] [2022-03-01 15:34:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:05,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:06,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:06,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317989454] [2022-03-01 15:34:06,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317989454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:06,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:06,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:06,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157725453] [2022-03-01 15:34:06,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:06,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:06,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:06,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:06,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:06,242 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:07,696 INFO L93 Difference]: Finished difference Result 9951 states and 26213 transitions. [2022-03-01 15:34:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:34:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:07,755 INFO L225 Difference]: With dead ends: 9951 [2022-03-01 15:34:07,755 INFO L226 Difference]: Without dead ends: 9685 [2022-03-01 15:34:07,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=789, Invalid=2871, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:34:07,755 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 859 mSDsluCounter, 6477 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 6757 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:07,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 6757 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:07,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9685 states. [2022-03-01 15:34:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9685 to 5447. [2022-03-01 15:34:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-03-01 15:34:07,821 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-03-01 15:34:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:07,821 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-03-01 15:34:07,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-03-01 15:34:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:07,827 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:07,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:07,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 15:34:07,827 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash -214196535, now seen corresponding path program 35 times [2022-03-01 15:34:07,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:07,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953904701] [2022-03-01 15:34:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:08,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:08,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953904701] [2022-03-01 15:34:08,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953904701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:08,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:08,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:08,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377235069] [2022-03-01 15:34:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:08,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:08,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:08,103 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:09,602 INFO L93 Difference]: Finished difference Result 9817 states and 25865 transitions. [2022-03-01 15:34:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:34:09,602 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:09,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:09,616 INFO L225 Difference]: With dead ends: 9817 [2022-03-01 15:34:09,616 INFO L226 Difference]: Without dead ends: 9514 [2022-03-01 15:34:09,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=745, Invalid=2561, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:34:09,621 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 820 mSDsluCounter, 7083 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 7358 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:09,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 7358 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9514 states. [2022-03-01 15:34:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9514 to 5407. [2022-03-01 15:34:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.6354051054384016) internal successors, (14247), 5406 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14247 transitions. [2022-03-01 15:34:09,715 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14247 transitions. Word has length 135 [2022-03-01 15:34:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:09,715 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14247 transitions. [2022-03-01 15:34:09,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14247 transitions. [2022-03-01 15:34:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:09,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:09,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:09,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 15:34:09,722 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1047311371, now seen corresponding path program 36 times [2022-03-01 15:34:09,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:09,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791882384] [2022-03-01 15:34:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:09,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:10,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:10,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791882384] [2022-03-01 15:34:10,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791882384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:10,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:10,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:10,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623505206] [2022-03-01 15:34:10,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:10,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:10,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:10,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:10,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:10,011 INFO L87 Difference]: Start difference. First operand 5407 states and 14247 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:12,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:12,193 INFO L93 Difference]: Finished difference Result 10297 states and 27193 transitions. [2022-03-01 15:34:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:34:12,193 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:12,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:12,208 INFO L225 Difference]: With dead ends: 10297 [2022-03-01 15:34:12,208 INFO L226 Difference]: Without dead ends: 10006 [2022-03-01 15:34:12,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:34:12,209 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 894 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 7228 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 7228 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10006 states. [2022-03-01 15:34:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10006 to 5483. [2022-03-01 15:34:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.636264137176213) internal successors, (14452), 5482 states have internal predecessors, (14452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14452 transitions. [2022-03-01 15:34:12,340 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14452 transitions. Word has length 135 [2022-03-01 15:34:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:12,340 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14452 transitions. [2022-03-01 15:34:12,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14452 transitions. [2022-03-01 15:34:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:12,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:12,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:12,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 15:34:12,347 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:12,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1339017399, now seen corresponding path program 37 times [2022-03-01 15:34:12,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:12,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051662431] [2022-03-01 15:34:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:12,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:12,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051662431] [2022-03-01 15:34:12,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051662431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:12,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:12,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:12,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220990758] [2022-03-01 15:34:12,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:12,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:12,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:12,766 INFO L87 Difference]: Start difference. First operand 5483 states and 14452 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:14,557 INFO L93 Difference]: Finished difference Result 10311 states and 27223 transitions. [2022-03-01 15:34:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:34:14,558 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:14,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:14,572 INFO L225 Difference]: With dead ends: 10311 [2022-03-01 15:34:14,573 INFO L226 Difference]: Without dead ends: 10045 [2022-03-01 15:34:14,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=761, Invalid=2779, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:34:14,575 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 865 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:14,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7269 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10045 states. [2022-03-01 15:34:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10045 to 5487. [2022-03-01 15:34:14,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.635617936565804) internal successors, (14459), 5486 states have internal predecessors, (14459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14459 transitions. [2022-03-01 15:34:14,657 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14459 transitions. Word has length 135 [2022-03-01 15:34:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:14,657 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14459 transitions. [2022-03-01 15:34:14,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14459 transitions. [2022-03-01 15:34:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:14,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:14,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:14,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 15:34:14,663 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash 787101425, now seen corresponding path program 38 times [2022-03-01 15:34:14,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:14,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882162258] [2022-03-01 15:34:14,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:14,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:15,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:15,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882162258] [2022-03-01 15:34:15,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882162258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:15,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:15,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:15,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212090040] [2022-03-01 15:34:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:15,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:15,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:15,124 INFO L87 Difference]: Start difference. First operand 5487 states and 14459 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:17,290 INFO L93 Difference]: Finished difference Result 10273 states and 27123 transitions. [2022-03-01 15:34:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:34:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:17,304 INFO L225 Difference]: With dead ends: 10273 [2022-03-01 15:34:17,305 INFO L226 Difference]: Without dead ends: 10002 [2022-03-01 15:34:17,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=826, Invalid=2834, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:34:17,306 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 879 mSDsluCounter, 6873 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 7172 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:17,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 7172 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:17,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2022-03-01 15:34:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 5479. [2022-03-01 15:34:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6361810879883167) internal successors, (14441), 5478 states have internal predecessors, (14441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14441 transitions. [2022-03-01 15:34:17,433 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14441 transitions. Word has length 135 [2022-03-01 15:34:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:17,433 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14441 transitions. [2022-03-01 15:34:17,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14441 transitions. [2022-03-01 15:34:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:17,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:17,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:17,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 15:34:17,440 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:17,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:17,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1159881591, now seen corresponding path program 39 times [2022-03-01 15:34:17,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:17,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787225393] [2022-03-01 15:34:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:17,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:17,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787225393] [2022-03-01 15:34:17,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787225393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:17,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:17,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:17,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524821138] [2022-03-01 15:34:17,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:17,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:17,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:17,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:17,877 INFO L87 Difference]: Start difference. First operand 5479 states and 14441 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:20,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:20,079 INFO L93 Difference]: Finished difference Result 10443 states and 27561 transitions. [2022-03-01 15:34:20,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:34:20,080 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:20,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:20,094 INFO L225 Difference]: With dead ends: 10443 [2022-03-01 15:34:20,094 INFO L226 Difference]: Without dead ends: 10146 [2022-03-01 15:34:20,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=938, Invalid=3352, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:34:20,097 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 924 mSDsluCounter, 7500 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 7769 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:20,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 7769 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10146 states. [2022-03-01 15:34:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5483. [2022-03-01 15:34:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6355344764684423) internal successors, (14448), 5482 states have internal predecessors, (14448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14448 transitions. [2022-03-01 15:34:20,177 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14448 transitions. Word has length 135 [2022-03-01 15:34:20,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:20,177 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14448 transitions. [2022-03-01 15:34:20,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14448 transitions. [2022-03-01 15:34:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:20,182 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:20,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:20,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 15:34:20,182 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:20,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1256696189, now seen corresponding path program 40 times [2022-03-01 15:34:20,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:20,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607681359] [2022-03-01 15:34:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:20,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:20,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:20,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607681359] [2022-03-01 15:34:20,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607681359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:20,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:20,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:20,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757766160] [2022-03-01 15:34:20,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:20,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:20,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:20,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:20,570 INFO L87 Difference]: Start difference. First operand 5483 states and 14448 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:22,641 INFO L93 Difference]: Finished difference Result 10327 states and 27263 transitions. [2022-03-01 15:34:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:34:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:22,656 INFO L225 Difference]: With dead ends: 10327 [2022-03-01 15:34:22,656 INFO L226 Difference]: Without dead ends: 10061 [2022-03-01 15:34:22,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=793, Invalid=2867, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:34:22,657 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 889 mSDsluCounter, 6245 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:22,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 6543 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2022-03-01 15:34:22,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 5487. [2022-03-01 15:34:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-03-01 15:34:22,786 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-03-01 15:34:22,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:22,786 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-03-01 15:34:22,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-03-01 15:34:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:22,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:22,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:22,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 15:34:22,793 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:22,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:22,794 INFO L85 PathProgramCache]: Analyzing trace with hash 869422635, now seen corresponding path program 41 times [2022-03-01 15:34:22,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:22,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529414789] [2022-03-01 15:34:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:23,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:23,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529414789] [2022-03-01 15:34:23,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529414789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:23,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:23,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:23,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823153831] [2022-03-01 15:34:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:23,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:23,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:23,241 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:25,282 INFO L93 Difference]: Finished difference Result 10273 states and 27119 transitions. [2022-03-01 15:34:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:34:25,282 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:25,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:25,296 INFO L225 Difference]: With dead ends: 10273 [2022-03-01 15:34:25,297 INFO L226 Difference]: Without dead ends: 9998 [2022-03-01 15:34:25,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=797, Invalid=2743, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:34:25,297 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 869 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:25,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 7150 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:25,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2022-03-01 15:34:25,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 5475. [2022-03-01 15:34:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6360979174278407) internal successors, (14430), 5474 states have internal predecessors, (14430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14430 transitions. [2022-03-01 15:34:25,392 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14430 transitions. Word has length 135 [2022-03-01 15:34:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:25,392 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14430 transitions. [2022-03-01 15:34:25,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14430 transitions. [2022-03-01 15:34:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:25,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:25,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:25,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 15:34:25,399 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash 250116583, now seen corresponding path program 42 times [2022-03-01 15:34:25,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:25,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757308236] [2022-03-01 15:34:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:25,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:25,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:25,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757308236] [2022-03-01 15:34:25,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757308236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:25,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:25,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:25,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977898795] [2022-03-01 15:34:25,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:25,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:25,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:25,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:25,826 INFO L87 Difference]: Start difference. First operand 5475 states and 14430 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:28,024 INFO L93 Difference]: Finished difference Result 10610 states and 27989 transitions. [2022-03-01 15:34:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:34:28,025 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:28,036 INFO L225 Difference]: With dead ends: 10610 [2022-03-01 15:34:28,036 INFO L226 Difference]: Without dead ends: 10220 [2022-03-01 15:34:28,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1133, Invalid=3979, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:34:28,036 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1010 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:28,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 7498 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10220 states. [2022-03-01 15:34:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10220 to 5487. [2022-03-01 15:34:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-03-01 15:34:28,104 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-03-01 15:34:28,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:28,105 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-03-01 15:34:28,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-03-01 15:34:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:28,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:28,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:28,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 15:34:28,110 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:28,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:28,110 INFO L85 PathProgramCache]: Analyzing trace with hash -143348453, now seen corresponding path program 43 times [2022-03-01 15:34:28,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:28,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256396778] [2022-03-01 15:34:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:28,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:28,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:28,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256396778] [2022-03-01 15:34:28,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256396778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:28,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:28,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:28,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413812746] [2022-03-01 15:34:28,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:28,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:28,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:28,516 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:30,509 INFO L93 Difference]: Finished difference Result 10459 states and 27593 transitions. [2022-03-01 15:34:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:30,524 INFO L225 Difference]: With dead ends: 10459 [2022-03-01 15:34:30,524 INFO L226 Difference]: Without dead ends: 10162 [2022-03-01 15:34:30,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=960, Invalid=3462, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:34:30,525 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 941 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 7391 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:30,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 7391 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10162 states. [2022-03-01 15:34:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10162 to 5491. [2022-03-01 15:34:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6335154826958105) internal successors, (14458), 5490 states have internal predecessors, (14458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14458 transitions. [2022-03-01 15:34:30,616 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14458 transitions. Word has length 135 [2022-03-01 15:34:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:30,617 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14458 transitions. [2022-03-01 15:34:30,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14458 transitions. [2022-03-01 15:34:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:30,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:30,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:30,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-01 15:34:30,623 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1735041063, now seen corresponding path program 44 times [2022-03-01 15:34:30,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:30,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423829461] [2022-03-01 15:34:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:30,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:30,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423829461] [2022-03-01 15:34:30,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423829461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:30,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:30,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:30,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264353459] [2022-03-01 15:34:30,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:30,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:30,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:30,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:30,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:30,947 INFO L87 Difference]: Start difference. First operand 5491 states and 14458 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:32,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:32,745 INFO L93 Difference]: Finished difference Result 10343 states and 27295 transitions. [2022-03-01 15:34:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:34:32,745 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:32,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:32,757 INFO L225 Difference]: With dead ends: 10343 [2022-03-01 15:34:32,757 INFO L226 Difference]: Without dead ends: 10077 [2022-03-01 15:34:32,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=786, Invalid=2874, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:34:32,758 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 874 mSDsluCounter, 6993 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 7277 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:32,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 7277 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:32,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10077 states. [2022-03-01 15:34:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10077 to 5495. [2022-03-01 15:34:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6328722242446303) internal successors, (14465), 5494 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14465 transitions. [2022-03-01 15:34:32,832 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14465 transitions. Word has length 135 [2022-03-01 15:34:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:32,832 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14465 transitions. [2022-03-01 15:34:32,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14465 transitions. [2022-03-01 15:34:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:32,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:32,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:32,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-01 15:34:32,838 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:32,838 INFO L85 PathProgramCache]: Analyzing trace with hash -433807409, now seen corresponding path program 45 times [2022-03-01 15:34:32,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:32,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088358328] [2022-03-01 15:34:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:32,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:33,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:33,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088358328] [2022-03-01 15:34:33,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088358328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:33,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:33,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:33,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297690674] [2022-03-01 15:34:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:33,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:33,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:33,226 INFO L87 Difference]: Start difference. First operand 5495 states and 14465 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:35,011 INFO L93 Difference]: Finished difference Result 10281 states and 27129 transitions. [2022-03-01 15:34:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:34:35,011 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:35,026 INFO L225 Difference]: With dead ends: 10281 [2022-03-01 15:34:35,027 INFO L226 Difference]: Without dead ends: 9986 [2022-03-01 15:34:35,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=771, Invalid=2651, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:34:35,027 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 865 mSDsluCounter, 6837 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7131 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:35,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7131 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:35,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9986 states. [2022-03-01 15:34:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9986 to 5463. [2022-03-01 15:34:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6358476748443795) internal successors, (14397), 5462 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14397 transitions. [2022-03-01 15:34:35,132 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14397 transitions. Word has length 135 [2022-03-01 15:34:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:35,132 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14397 transitions. [2022-03-01 15:34:35,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:35,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14397 transitions. [2022-03-01 15:34:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:35,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:35,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:35,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-01 15:34:35,142 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1049797013, now seen corresponding path program 46 times [2022-03-01 15:34:35,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:35,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387178531] [2022-03-01 15:34:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:35,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:35,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387178531] [2022-03-01 15:34:35,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387178531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:35,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:35,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:35,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897154711] [2022-03-01 15:34:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:35,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:35,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:35,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:35,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:35,478 INFO L87 Difference]: Start difference. First operand 5463 states and 14397 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:37,913 INFO L93 Difference]: Finished difference Result 10852 states and 28539 transitions. [2022-03-01 15:34:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:34:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:37,926 INFO L225 Difference]: With dead ends: 10852 [2022-03-01 15:34:37,926 INFO L226 Difference]: Without dead ends: 10431 [2022-03-01 15:34:37,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1314, Invalid=4386, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:34:37,927 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1240 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:37,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 6863 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:37,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-01 15:34:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5467. [2022-03-01 15:34:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6351994145627518) internal successors, (14404), 5466 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14404 transitions. [2022-03-01 15:34:38,011 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14404 transitions. Word has length 135 [2022-03-01 15:34:38,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:38,011 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14404 transitions. [2022-03-01 15:34:38,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:38,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14404 transitions. [2022-03-01 15:34:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:38,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:38,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:38,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-01 15:34:38,017 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:38,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:38,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2147017151, now seen corresponding path program 47 times [2022-03-01 15:34:38,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:38,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892681731] [2022-03-01 15:34:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:38,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:38,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:38,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892681731] [2022-03-01 15:34:38,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892681731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:38,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:38,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:38,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633255284] [2022-03-01 15:34:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:38,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:38,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:38,426 INFO L87 Difference]: Start difference. First operand 5467 states and 14404 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:40,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:40,515 INFO L93 Difference]: Finished difference Result 10626 states and 28021 transitions. [2022-03-01 15:34:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:34:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:40,530 INFO L225 Difference]: With dead ends: 10626 [2022-03-01 15:34:40,530 INFO L226 Difference]: Without dead ends: 10236 [2022-03-01 15:34:40,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1152, Invalid=4104, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:34:40,531 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 986 mSDsluCounter, 7681 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 7944 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:40,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 7944 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:40,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-03-01 15:34:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 5479. [2022-03-01 15:34:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6332603139832056) internal successors, (14425), 5478 states have internal predecessors, (14425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14425 transitions. [2022-03-01 15:34:40,623 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14425 transitions. Word has length 135 [2022-03-01 15:34:40,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:40,623 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14425 transitions. [2022-03-01 15:34:40,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:40,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14425 transitions. [2022-03-01 15:34:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:40,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:40,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:40,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-01 15:34:40,630 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1001920947, now seen corresponding path program 48 times [2022-03-01 15:34:40,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:40,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580367827] [2022-03-01 15:34:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:40,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:41,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:41,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580367827] [2022-03-01 15:34:41,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580367827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:41,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:41,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:41,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446086793] [2022-03-01 15:34:41,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:41,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:41,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:41,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:41,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:41,045 INFO L87 Difference]: Start difference. First operand 5479 states and 14425 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:43,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:43,167 INFO L93 Difference]: Finished difference Result 10475 states and 27625 transitions. [2022-03-01 15:34:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:43,167 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:43,179 INFO L225 Difference]: With dead ends: 10475 [2022-03-01 15:34:43,179 INFO L226 Difference]: Without dead ends: 10178 [2022-03-01 15:34:43,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=950, Invalid=3472, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:34:43,179 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 925 mSDsluCounter, 7540 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 7807 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:43,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 7807 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-01 15:34:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5483. [2022-03-01 15:34:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6326158336373586) internal successors, (14432), 5482 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14432 transitions. [2022-03-01 15:34:43,253 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14432 transitions. Word has length 135 [2022-03-01 15:34:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:43,253 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14432 transitions. [2022-03-01 15:34:43,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14432 transitions. [2022-03-01 15:34:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:43,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:43,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:43,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-01 15:34:43,259 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:43,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1414656833, now seen corresponding path program 49 times [2022-03-01 15:34:43,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:43,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913703902] [2022-03-01 15:34:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:43,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:43,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:43,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913703902] [2022-03-01 15:34:43,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913703902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:43,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:43,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:43,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338481634] [2022-03-01 15:34:43,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:43,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:43,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:43,574 INFO L87 Difference]: Start difference. First operand 5483 states and 14432 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:45,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:45,127 INFO L93 Difference]: Finished difference Result 10359 states and 27327 transitions. [2022-03-01 15:34:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:34:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:45,142 INFO L225 Difference]: With dead ends: 10359 [2022-03-01 15:34:45,142 INFO L226 Difference]: Without dead ends: 10093 [2022-03-01 15:34:45,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=783, Invalid=2877, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:34:45,143 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 858 mSDsluCounter, 7005 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 7287 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:45,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 7287 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10093 states. [2022-03-01 15:34:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10093 to 5487. [2022-03-01 15:34:45,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.631972293109734) internal successors, (14439), 5486 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14439 transitions. [2022-03-01 15:34:45,243 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14439 transitions. Word has length 135 [2022-03-01 15:34:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:45,243 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14439 transitions. [2022-03-01 15:34:45,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14439 transitions. [2022-03-01 15:34:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:45,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:45,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:45,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-01 15:34:45,250 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash 711461991, now seen corresponding path program 50 times [2022-03-01 15:34:45,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:45,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994517647] [2022-03-01 15:34:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:45,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:45,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994517647] [2022-03-01 15:34:45,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994517647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:45,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:45,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:45,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111425483] [2022-03-01 15:34:45,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:45,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:45,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:45,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:45,660 INFO L87 Difference]: Start difference. First operand 5487 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:47,208 INFO L93 Difference]: Finished difference Result 10273 states and 27103 transitions. [2022-03-01 15:34:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:34:47,209 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:47,221 INFO L225 Difference]: With dead ends: 10273 [2022-03-01 15:34:47,221 INFO L226 Difference]: Without dead ends: 9982 [2022-03-01 15:34:47,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=743, Invalid=2563, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:34:47,221 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 852 mSDsluCounter, 7218 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 7504 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:47,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 7504 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9982 states. [2022-03-01 15:34:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9982 to 5459. [2022-03-01 15:34:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.635764016123122) internal successors, (14386), 5458 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14386 transitions. [2022-03-01 15:34:47,292 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14386 transitions. Word has length 135 [2022-03-01 15:34:47,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:47,292 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14386 transitions. [2022-03-01 15:34:47,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14386 transitions. [2022-03-01 15:34:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:47,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:47,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:47,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-01 15:34:47,298 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2050552393, now seen corresponding path program 51 times [2022-03-01 15:34:47,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:47,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131948614] [2022-03-01 15:34:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:47,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:47,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131948614] [2022-03-01 15:34:47,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131948614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:47,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:47,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:47,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15470544] [2022-03-01 15:34:47,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:47,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:47,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:47,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:47,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:47,586 INFO L87 Difference]: Start difference. First operand 5459 states and 14386 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:50,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:50,021 INFO L93 Difference]: Finished difference Result 10918 states and 28649 transitions. [2022-03-01 15:34:50,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:34:50,021 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:50,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:50,036 INFO L225 Difference]: With dead ends: 10918 [2022-03-01 15:34:50,036 INFO L226 Difference]: Without dead ends: 10094 [2022-03-01 15:34:50,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1464, Invalid=4698, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:34:50,037 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1361 mSDsluCounter, 7714 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:50,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 7991 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:50,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10094 states. [2022-03-01 15:34:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10094 to 5511. [2022-03-01 15:34:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5511 states, 5510 states have (on average 2.6274047186932847) internal successors, (14477), 5510 states have internal predecessors, (14477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:50,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 14477 transitions. [2022-03-01 15:34:50,135 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 14477 transitions. Word has length 135 [2022-03-01 15:34:50,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:50,135 INFO L470 AbstractCegarLoop]: Abstraction has 5511 states and 14477 transitions. [2022-03-01 15:34:50,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:50,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 14477 transitions. [2022-03-01 15:34:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:50,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:50,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:50,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-01 15:34:50,141 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:50,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:50,141 INFO L85 PathProgramCache]: Analyzing trace with hash -462365247, now seen corresponding path program 52 times [2022-03-01 15:34:50,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:50,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120124222] [2022-03-01 15:34:50,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:50,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:50,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:50,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120124222] [2022-03-01 15:34:50,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120124222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:50,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:50,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:50,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633628477] [2022-03-01 15:34:50,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:50,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:50,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:50,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:50,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:50,519 INFO L87 Difference]: Start difference. First operand 5511 states and 14477 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:53,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:53,638 INFO L93 Difference]: Finished difference Result 10484 states and 27491 transitions. [2022-03-01 15:34:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:34:53,638 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:53,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:53,652 INFO L225 Difference]: With dead ends: 10484 [2022-03-01 15:34:53,652 INFO L226 Difference]: Without dead ends: 10063 [2022-03-01 15:34:53,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1296, Invalid=4404, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:34:53,653 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1231 mSDsluCounter, 7485 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 7760 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:53,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 7760 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:34:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-03-01 15:34:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5515. [2022-03-01 15:34:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 2.626768226332971) internal successors, (14484), 5514 states have internal predecessors, (14484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 14484 transitions. [2022-03-01 15:34:53,728 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 14484 transitions. Word has length 135 [2022-03-01 15:34:53,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:53,729 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 14484 transitions. [2022-03-01 15:34:53,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 14484 transitions. [2022-03-01 15:34:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:53,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:53,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:53,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-01 15:34:53,734 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:53,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash 634854891, now seen corresponding path program 53 times [2022-03-01 15:34:53,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:53,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542743889] [2022-03-01 15:34:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:53,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:54,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:54,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542743889] [2022-03-01 15:34:54,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542743889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:54,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:54,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:54,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296271704] [2022-03-01 15:34:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:54,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:54,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:54,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:54,058 INFO L87 Difference]: Start difference. First operand 5515 states and 14484 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:56,094 INFO L93 Difference]: Finished difference Result 10282 states and 27031 transitions. [2022-03-01 15:34:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:34:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:56,106 INFO L225 Difference]: With dead ends: 10282 [2022-03-01 15:34:56,106 INFO L226 Difference]: Without dead ends: 9892 [2022-03-01 15:34:56,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1138, Invalid=4118, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:34:56,107 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 994 mSDsluCounter, 7754 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 8023 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:56,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 8023 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:34:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2022-03-01 15:34:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 5527. [2022-03-01 15:34:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5526 states have (on average 2.6248642779587406) internal successors, (14505), 5526 states have internal predecessors, (14505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14505 transitions. [2022-03-01 15:34:56,182 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14505 transitions. Word has length 135 [2022-03-01 15:34:56,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:56,182 INFO L470 AbstractCegarLoop]: Abstraction has 5527 states and 14505 transitions. [2022-03-01 15:34:56,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14505 transitions. [2022-03-01 15:34:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:56,188 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:56,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:56,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-01 15:34:56,188 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:56,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:56,188 INFO L85 PathProgramCache]: Analyzing trace with hash -510241313, now seen corresponding path program 54 times [2022-03-01 15:34:56,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:56,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546438155] [2022-03-01 15:34:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:56,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:56,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546438155] [2022-03-01 15:34:56,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546438155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:56,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:56,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:56,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702015756] [2022-03-01 15:34:56,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:56,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:56,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:56,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:56,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:56,519 INFO L87 Difference]: Start difference. First operand 5527 states and 14505 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:58,753 INFO L93 Difference]: Finished difference Result 10139 states and 26657 transitions. [2022-03-01 15:34:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:58,754 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:34:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:58,767 INFO L225 Difference]: With dead ends: 10139 [2022-03-01 15:34:58,768 INFO L226 Difference]: Without dead ends: 9842 [2022-03-01 15:34:58,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:34:58,768 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 933 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 7466 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:58,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 7466 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:34:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9842 states. [2022-03-01 15:34:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9842 to 5531. [2022-03-01 15:34:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5531 states, 5530 states have (on average 2.624231464737794) internal successors, (14512), 5530 states have internal predecessors, (14512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 14512 transitions. [2022-03-01 15:34:58,860 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 14512 transitions. Word has length 135 [2022-03-01 15:34:58,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:58,860 INFO L470 AbstractCegarLoop]: Abstraction has 5531 states and 14512 transitions. [2022-03-01 15:34:58,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 14512 transitions. [2022-03-01 15:34:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:34:58,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:58,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:58,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-01 15:34:58,866 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1368148203, now seen corresponding path program 55 times [2022-03-01 15:34:58,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:58,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481054932] [2022-03-01 15:34:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:58,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:59,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:59,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481054932] [2022-03-01 15:34:59,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481054932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:59,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:59,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:34:59,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105721054] [2022-03-01 15:34:59,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:59,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:34:59,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:34:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:34:59,272 INFO L87 Difference]: Start difference. First operand 5531 states and 14512 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:01,184 INFO L93 Difference]: Finished difference Result 10039 states and 26403 transitions. [2022-03-01 15:35:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:01,196 INFO L225 Difference]: With dead ends: 10039 [2022-03-01 15:35:01,196 INFO L226 Difference]: Without dead ends: 9773 [2022-03-01 15:35:01,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=777, Invalid=2883, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:01,197 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 880 mSDsluCounter, 7040 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 7330 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:01,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 7330 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:01,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2022-03-01 15:35:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 5535. [2022-03-01 15:35:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6235995663173113) internal successors, (14519), 5534 states have internal predecessors, (14519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14519 transitions. [2022-03-01 15:35:01,290 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14519 transitions. Word has length 135 [2022-03-01 15:35:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:01,290 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14519 transitions. [2022-03-01 15:35:01,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:01,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14519 transitions. [2022-03-01 15:35:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:01,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:01,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:01,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-01 15:35:01,299 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -800700269, now seen corresponding path program 56 times [2022-03-01 15:35:01,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:01,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353661557] [2022-03-01 15:35:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:01,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:01,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353661557] [2022-03-01 15:35:01,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353661557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:01,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:01,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:01,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270449592] [2022-03-01 15:35:01,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:01,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:01,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:01,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:01,641 INFO L87 Difference]: Start difference. First operand 5535 states and 14519 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:03,396 INFO L93 Difference]: Finished difference Result 9905 states and 26055 transitions. [2022-03-01 15:35:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:35:03,397 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:03,409 INFO L225 Difference]: With dead ends: 9905 [2022-03-01 15:35:03,410 INFO L226 Difference]: Without dead ends: 9358 [2022-03-01 15:35:03,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:35:03,412 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 847 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 7214 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:03,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 7214 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:03,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9358 states. [2022-03-01 15:35:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9358 to 5251. [2022-03-01 15:35:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.632) internal successors, (13818), 5250 states have internal predecessors, (13818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13818 transitions. [2022-03-01 15:35:03,491 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13818 transitions. Word has length 135 [2022-03-01 15:35:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:03,491 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13818 transitions. [2022-03-01 15:35:03,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13818 transitions. [2022-03-01 15:35:03,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:03,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:03,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:03,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-01 15:35:03,497 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1752185001, now seen corresponding path program 57 times [2022-03-01 15:35:03,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:03,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765162125] [2022-03-01 15:35:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:03,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:03,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765162125] [2022-03-01 15:35:03,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765162125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:03,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:03,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:03,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655434628] [2022-03-01 15:35:03,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:03,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:03,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:03,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:03,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:03,807 INFO L87 Difference]: Start difference. First operand 5251 states and 13818 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:05,656 INFO L93 Difference]: Finished difference Result 10161 states and 26819 transitions. [2022-03-01 15:35:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:35:05,657 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:05,668 INFO L225 Difference]: With dead ends: 10161 [2022-03-01 15:35:05,668 INFO L226 Difference]: Without dead ends: 9870 [2022-03-01 15:35:05,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=941, Invalid=3091, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:35:05,668 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 878 mSDsluCounter, 7676 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:05,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 7960 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:05,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9870 states. [2022-03-01 15:35:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9870 to 5331. [2022-03-01 15:35:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:05,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-03-01 15:35:05,745 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-03-01 15:35:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:05,746 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-03-01 15:35:05,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-03-01 15:35:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:05,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:05,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:05,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-01 15:35:05,752 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:05,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2043891029, now seen corresponding path program 58 times [2022-03-01 15:35:05,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:05,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907750032] [2022-03-01 15:35:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:05,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:06,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:06,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:06,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907750032] [2022-03-01 15:35:06,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907750032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:06,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:06,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:06,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764832109] [2022-03-01 15:35:06,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:06,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:06,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:06,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:06,083 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:07,712 INFO L93 Difference]: Finished difference Result 10175 states and 26849 transitions. [2022-03-01 15:35:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:35:07,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:07,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:07,726 INFO L225 Difference]: With dead ends: 10175 [2022-03-01 15:35:07,726 INFO L226 Difference]: Without dead ends: 9909 [2022-03-01 15:35:07,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=755, Invalid=2785, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:35:07,727 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 858 mSDsluCounter, 7024 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 7308 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:07,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 7308 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:07,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9909 states. [2022-03-01 15:35:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9909 to 5335. [2022-03-01 15:35:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-03-01 15:35:07,810 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-03-01 15:35:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:07,811 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-03-01 15:35:07,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-03-01 15:35:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:07,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:07,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:07,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-01 15:35:07,816 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:07,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 82227795, now seen corresponding path program 59 times [2022-03-01 15:35:07,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:07,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495138029] [2022-03-01 15:35:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:08,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:08,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495138029] [2022-03-01 15:35:08,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495138029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:08,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:08,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:08,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240415674] [2022-03-01 15:35:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:08,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:08,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:08,292 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:10,118 INFO L93 Difference]: Finished difference Result 10137 states and 26749 transitions. [2022-03-01 15:35:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:10,119 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:10,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:10,130 INFO L225 Difference]: With dead ends: 10137 [2022-03-01 15:35:10,131 INFO L226 Difference]: Without dead ends: 9866 [2022-03-01 15:35:10,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:10,131 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 847 mSDsluCounter, 7282 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:10,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 7574 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2022-03-01 15:35:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 5327. [2022-03-01 15:35:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-03-01 15:35:10,226 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-03-01 15:35:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:10,226 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-03-01 15:35:10,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-03-01 15:35:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:10,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:10,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:10,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-01 15:35:10,232 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 455007961, now seen corresponding path program 60 times [2022-03-01 15:35:10,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:10,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225216818] [2022-03-01 15:35:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:10,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:10,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:10,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225216818] [2022-03-01 15:35:10,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225216818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:10,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:10,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:10,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514142652] [2022-03-01 15:35:10,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:10,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:10,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:10,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:10,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:10,605 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:12,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:12,809 INFO L93 Difference]: Finished difference Result 10307 states and 27187 transitions. [2022-03-01 15:35:12,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:35:12,809 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:12,823 INFO L225 Difference]: With dead ends: 10307 [2022-03-01 15:35:12,823 INFO L226 Difference]: Without dead ends: 10010 [2022-03-01 15:35:12,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=926, Invalid=3364, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:35:12,824 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 934 mSDsluCounter, 7118 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 7394 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:12,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 7394 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:12,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2022-03-01 15:35:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 5331. [2022-03-01 15:35:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-03-01 15:35:12,919 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-03-01 15:35:12,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:12,919 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-03-01 15:35:12,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-03-01 15:35:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:12,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:12,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:12,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-01 15:35:12,925 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:12,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1961569819, now seen corresponding path program 61 times [2022-03-01 15:35:12,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:12,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288297994] [2022-03-01 15:35:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:13,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:13,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288297994] [2022-03-01 15:35:13,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288297994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:13,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:13,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:13,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179318344] [2022-03-01 15:35:13,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:13,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:13,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:13,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:13,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:13,243 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:14,873 INFO L93 Difference]: Finished difference Result 10191 states and 26889 transitions. [2022-03-01 15:35:14,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:14,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:14,884 INFO L225 Difference]: With dead ends: 10191 [2022-03-01 15:35:14,884 INFO L226 Difference]: Without dead ends: 9925 [2022-03-01 15:35:14,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=785, Invalid=2875, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:14,885 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 874 mSDsluCounter, 7002 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 7289 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:14,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 7289 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9925 states. [2022-03-01 15:35:14,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9925 to 5335. [2022-03-01 15:35:14,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-03-01 15:35:14,967 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-03-01 15:35:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:14,967 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-03-01 15:35:14,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:14,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-03-01 15:35:14,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:14,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:14,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:14,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-01 15:35:14,973 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:14,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash 164549005, now seen corresponding path program 62 times [2022-03-01 15:35:14,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:14,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663932862] [2022-03-01 15:35:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:15,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:15,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663932862] [2022-03-01 15:35:15,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663932862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:15,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:15,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:15,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253583292] [2022-03-01 15:35:15,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:15,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:15,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:15,238 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:17,201 INFO L93 Difference]: Finished difference Result 10137 states and 26745 transitions. [2022-03-01 15:35:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:35:17,201 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:17,215 INFO L225 Difference]: With dead ends: 10137 [2022-03-01 15:35:17,215 INFO L226 Difference]: Without dead ends: 9862 [2022-03-01 15:35:17,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=795, Invalid=2745, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:35:17,216 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 857 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 7164 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:17,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 7164 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9862 states. [2022-03-01 15:35:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9862 to 5323. [2022-03-01 15:35:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-03-01 15:35:17,309 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-03-01 15:35:17,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:17,309 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-03-01 15:35:17,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-03-01 15:35:17,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:17,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:17,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:17,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-01 15:35:17,315 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:17,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:17,316 INFO L85 PathProgramCache]: Analyzing trace with hash -454757047, now seen corresponding path program 63 times [2022-03-01 15:35:17,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:17,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510111268] [2022-03-01 15:35:17,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:17,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:17,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:17,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510111268] [2022-03-01 15:35:17,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510111268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:17,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:17,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:17,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094636014] [2022-03-01 15:35:17,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:17,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:17,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:17,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:17,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:17,659 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:20,074 INFO L93 Difference]: Finished difference Result 10474 states and 27615 transitions. [2022-03-01 15:35:20,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:35:20,074 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:20,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:20,085 INFO L225 Difference]: With dead ends: 10474 [2022-03-01 15:35:20,085 INFO L226 Difference]: Without dead ends: 10084 [2022-03-01 15:35:20,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1120, Invalid=3992, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:35:20,086 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 995 mSDsluCounter, 7677 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 7935 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:20,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 7935 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10084 states. [2022-03-01 15:35:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10084 to 5335. [2022-03-01 15:35:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-03-01 15:35:20,243 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-03-01 15:35:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:20,243 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-03-01 15:35:20,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-03-01 15:35:20,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:20,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:20,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:20,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-01 15:35:20,249 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:20,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:20,249 INFO L85 PathProgramCache]: Analyzing trace with hash -848222083, now seen corresponding path program 64 times [2022-03-01 15:35:20,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:20,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847987799] [2022-03-01 15:35:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:20,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:20,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:20,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847987799] [2022-03-01 15:35:20,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847987799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:20,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:20,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:20,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078762747] [2022-03-01 15:35:20,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:20,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:20,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:20,651 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:23,120 INFO L93 Difference]: Finished difference Result 10323 states and 27219 transitions. [2022-03-01 15:35:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:35:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:23,134 INFO L225 Difference]: With dead ends: 10323 [2022-03-01 15:35:23,134 INFO L226 Difference]: Without dead ends: 10026 [2022-03-01 15:35:23,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=950, Invalid=3472, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:35:23,135 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 953 mSDsluCounter, 7130 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 7408 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:23,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 7408 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:35:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10026 states. [2022-03-01 15:35:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10026 to 5339. [2022-03-01 15:35:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-03-01 15:35:23,226 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-03-01 15:35:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:23,226 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-03-01 15:35:23,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-03-01 15:35:23,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:23,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:23,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:23,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-01 15:35:23,233 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:23,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1030167433, now seen corresponding path program 65 times [2022-03-01 15:35:23,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:23,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627121084] [2022-03-01 15:35:23,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:23,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:23,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:23,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627121084] [2022-03-01 15:35:23,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627121084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:23,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:23,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:23,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688720631] [2022-03-01 15:35:23,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:23,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:23,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:23,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:23,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:23,663 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:25,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:25,361 INFO L93 Difference]: Finished difference Result 10207 states and 26921 transitions. [2022-03-01 15:35:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:25,362 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:25,372 INFO L225 Difference]: With dead ends: 10207 [2022-03-01 15:35:25,372 INFO L226 Difference]: Without dead ends: 9941 [2022-03-01 15:35:25,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=782, Invalid=2878, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:25,373 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 874 mSDsluCounter, 6617 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 6907 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:25,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 6907 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:25,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9941 states. [2022-03-01 15:35:25,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9941 to 5343. [2022-03-01 15:35:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-03-01 15:35:25,437 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-03-01 15:35:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:25,437 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-03-01 15:35:25,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-03-01 15:35:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:25,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:25,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:25,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-01 15:35:25,443 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:25,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1138681039, now seen corresponding path program 66 times [2022-03-01 15:35:25,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:25,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169141055] [2022-03-01 15:35:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:25,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:25,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169141055] [2022-03-01 15:35:25,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169141055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:25,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:25,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:25,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462941200] [2022-03-01 15:35:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:25,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:25,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:25,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:25,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:25,778 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:27,712 INFO L93 Difference]: Finished difference Result 10145 states and 26755 transitions. [2022-03-01 15:35:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:35:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:27,725 INFO L225 Difference]: With dead ends: 10145 [2022-03-01 15:35:27,726 INFO L226 Difference]: Without dead ends: 9850 [2022-03-01 15:35:27,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=767, Invalid=2655, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:35:27,726 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 880 mSDsluCounter, 6856 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 7149 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:27,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 7149 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:27,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9850 states. [2022-03-01 15:35:27,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9850 to 5311. [2022-03-01 15:35:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-03-01 15:35:27,800 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-03-01 15:35:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:27,800 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-03-01 15:35:27,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-03-01 15:35:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:27,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:27,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:27,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-01 15:35:27,805 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:27,805 INFO L85 PathProgramCache]: Analyzing trace with hash 344923383, now seen corresponding path program 67 times [2022-03-01 15:35:27,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:27,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076710233] [2022-03-01 15:35:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:28,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:28,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076710233] [2022-03-01 15:35:28,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076710233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:28,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:28,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:28,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678567109] [2022-03-01 15:35:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:28,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:28,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:28,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:28,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:28,176 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:31,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:31,025 INFO L93 Difference]: Finished difference Result 10716 states and 28165 transitions. [2022-03-01 15:35:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:35:31,026 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:31,038 INFO L225 Difference]: With dead ends: 10716 [2022-03-01 15:35:31,038 INFO L226 Difference]: Without dead ends: 10295 [2022-03-01 15:35:31,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1298, Invalid=4402, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:35:31,039 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1236 mSDsluCounter, 6624 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 6902 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:31,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 6902 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-01 15:35:31,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5315. [2022-03-01 15:35:31,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-03-01 15:35:31,109 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-03-01 15:35:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:31,109 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-03-01 15:35:31,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-03-01 15:35:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:31,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:31,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:31,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-01 15:35:31,114 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:31,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1442143521, now seen corresponding path program 68 times [2022-03-01 15:35:31,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:31,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678361919] [2022-03-01 15:35:31,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:31,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:31,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:31,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678361919] [2022-03-01 15:35:31,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678361919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:31,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:31,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:31,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487228000] [2022-03-01 15:35:31,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:31,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:31,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:31,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:31,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:31,458 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:33,864 INFO L93 Difference]: Finished difference Result 10490 states and 27647 transitions. [2022-03-01 15:35:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:35:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:33,879 INFO L225 Difference]: With dead ends: 10490 [2022-03-01 15:35:33,879 INFO L226 Difference]: Without dead ends: 10100 [2022-03-01 15:35:33,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1138, Invalid=4118, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:35:33,880 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 997 mSDsluCounter, 7695 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 7957 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:33,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 7957 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-03-01 15:35:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 5327. [2022-03-01 15:35:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-03-01 15:35:33,971 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-03-01 15:35:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:33,971 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-03-01 15:35:33,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-03-01 15:35:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:33,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:33,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:33,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-01 15:35:33,977 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 297047317, now seen corresponding path program 69 times [2022-03-01 15:35:33,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:33,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133356610] [2022-03-01 15:35:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:33,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:34,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:34,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133356610] [2022-03-01 15:35:34,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133356610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:34,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:34,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:34,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927888259] [2022-03-01 15:35:34,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:34,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:34,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:34,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:34,440 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:36,388 INFO L93 Difference]: Finished difference Result 10339 states and 27251 transitions. [2022-03-01 15:35:36,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:35:36,389 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:36,399 INFO L225 Difference]: With dead ends: 10339 [2022-03-01 15:35:36,399 INFO L226 Difference]: Without dead ends: 10042 [2022-03-01 15:35:36,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:35:36,400 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 960 mSDsluCounter, 7137 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:36,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 7413 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2022-03-01 15:35:36,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 5331. [2022-03-01 15:35:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-03-01 15:35:36,469 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-03-01 15:35:36,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:36,469 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-03-01 15:35:36,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-03-01 15:35:36,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:36,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:36,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:36,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-01 15:35:36,474 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:36,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2119530463, now seen corresponding path program 70 times [2022-03-01 15:35:36,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:36,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461684506] [2022-03-01 15:35:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:36,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:36,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:36,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461684506] [2022-03-01 15:35:36,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461684506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:36,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:36,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:36,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320612741] [2022-03-01 15:35:36,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:36,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:36,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:36,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:36,738 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:38,393 INFO L93 Difference]: Finished difference Result 10223 states and 26953 transitions. [2022-03-01 15:35:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:38,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:38,407 INFO L225 Difference]: With dead ends: 10223 [2022-03-01 15:35:38,407 INFO L226 Difference]: Without dead ends: 9957 [2022-03-01 15:35:38,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=777, Invalid=2883, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:38,408 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 885 mSDsluCounter, 6623 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:38,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [885 Valid, 6911 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:38,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-03-01 15:35:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 5335. [2022-03-01 15:35:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-03-01 15:35:38,483 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-03-01 15:35:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:38,483 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-03-01 15:35:38,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-03-01 15:35:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:38,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:38,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:38,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-01 15:35:38,489 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash 6588361, now seen corresponding path program 71 times [2022-03-01 15:35:38,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:38,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097064081] [2022-03-01 15:35:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:38,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:38,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097064081] [2022-03-01 15:35:38,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097064081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:38,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:38,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:38,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912294566] [2022-03-01 15:35:38,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:38,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:38,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:38,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:38,928 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:40,847 INFO L93 Difference]: Finished difference Result 10137 states and 26729 transitions. [2022-03-01 15:35:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:35:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:40,858 INFO L225 Difference]: With dead ends: 10137 [2022-03-01 15:35:40,858 INFO L226 Difference]: Without dead ends: 9846 [2022-03-01 15:35:40,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:35:40,858 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 866 mSDsluCounter, 6856 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 7147 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:40,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 7147 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2022-03-01 15:35:40,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 5307. [2022-03-01 15:35:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-03-01 15:35:40,932 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-03-01 15:35:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:40,932 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-03-01 15:35:40,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-03-01 15:35:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:40,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:40,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:40,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-01 15:35:40,937 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1345678763, now seen corresponding path program 72 times [2022-03-01 15:35:40,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:40,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823724144] [2022-03-01 15:35:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:41,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:41,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:41,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823724144] [2022-03-01 15:35:41,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823724144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:41,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:41,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:41,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275170289] [2022-03-01 15:35:41,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:41,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:41,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:41,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:41,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:41,363 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:43,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:43,797 INFO L93 Difference]: Finished difference Result 11198 states and 29403 transitions. [2022-03-01 15:35:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:35:43,797 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:43,811 INFO L225 Difference]: With dead ends: 11198 [2022-03-01 15:35:43,812 INFO L226 Difference]: Without dead ends: 10374 [2022-03-01 15:35:43,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1446, Invalid=4716, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:35:43,813 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1365 mSDsluCounter, 7756 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 8033 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:43,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 8033 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:35:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10374 states. [2022-03-01 15:35:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10374 to 5359. [2022-03-01 15:35:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-03-01 15:35:43,900 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-03-01 15:35:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:43,900 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-03-01 15:35:43,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:43,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-03-01 15:35:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:43,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:43,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:43,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-01 15:35:43,906 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:43,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1167238877, now seen corresponding path program 73 times [2022-03-01 15:35:43,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:43,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388675651] [2022-03-01 15:35:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:43,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:44,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:44,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388675651] [2022-03-01 15:35:44,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388675651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:44,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:44,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:44,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396368856] [2022-03-01 15:35:44,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:44,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:44,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:44,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:44,280 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:46,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:46,486 INFO L93 Difference]: Finished difference Result 10764 states and 28245 transitions. [2022-03-01 15:35:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:35:46,486 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:46,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:46,501 INFO L225 Difference]: With dead ends: 10764 [2022-03-01 15:35:46,501 INFO L226 Difference]: Without dead ends: 10343 [2022-03-01 15:35:46,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:35:46,502 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1226 mSDsluCounter, 7950 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 8214 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:46,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 8214 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:46,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2022-03-01 15:35:46,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 5363. [2022-03-01 15:35:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-03-01 15:35:46,593 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-03-01 15:35:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:46,594 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-03-01 15:35:46,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-03-01 15:35:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:46,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:46,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:46,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-01 15:35:46,600 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:46,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:46,600 INFO L85 PathProgramCache]: Analyzing trace with hash -70018739, now seen corresponding path program 74 times [2022-03-01 15:35:46,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:46,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028069408] [2022-03-01 15:35:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:46,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:46,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:46,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028069408] [2022-03-01 15:35:46,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028069408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:46,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:46,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:46,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959816570] [2022-03-01 15:35:46,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:46,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:46,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:46,885 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:49,265 INFO L93 Difference]: Finished difference Result 10538 states and 27727 transitions. [2022-03-01 15:35:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:35:49,266 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:49,276 INFO L225 Difference]: With dead ends: 10538 [2022-03-01 15:35:49,276 INFO L226 Difference]: Without dead ends: 10148 [2022-03-01 15:35:49,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:35:49,277 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1018 mSDsluCounter, 7380 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 7657 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:49,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 7657 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:49,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10148 states. [2022-03-01 15:35:49,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10148 to 5375. [2022-03-01 15:35:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-03-01 15:35:49,342 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-03-01 15:35:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:49,342 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-03-01 15:35:49,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-03-01 15:35:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:49,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:49,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:49,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-01 15:35:49,347 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1215114943, now seen corresponding path program 75 times [2022-03-01 15:35:49,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:49,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022666548] [2022-03-01 15:35:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:49,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:49,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022666548] [2022-03-01 15:35:49,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022666548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:49,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:49,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:49,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156250018] [2022-03-01 15:35:49,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:49,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:49,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:49,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:49,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:49,774 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:52,266 INFO L93 Difference]: Finished difference Result 10387 states and 27331 transitions. [2022-03-01 15:35:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:35:52,266 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:52,279 INFO L225 Difference]: With dead ends: 10387 [2022-03-01 15:35:52,279 INFO L226 Difference]: Without dead ends: 10090 [2022-03-01 15:35:52,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:35:52,280 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 928 mSDsluCounter, 8046 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:52,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 8312 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:35:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2022-03-01 15:35:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5379. [2022-03-01 15:35:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-03-01 15:35:52,356 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-03-01 15:35:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:52,357 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-03-01 15:35:52,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-03-01 15:35:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:52,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:52,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:52,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-01 15:35:52,362 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash 663274573, now seen corresponding path program 76 times [2022-03-01 15:35:52,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:52,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219077216] [2022-03-01 15:35:52,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:52,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:52,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:52,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219077216] [2022-03-01 15:35:52,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219077216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:52,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:52,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:52,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236893392] [2022-03-01 15:35:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:52,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:52,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:52,778 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:54,677 INFO L93 Difference]: Finished difference Result 10271 states and 27033 transitions. [2022-03-01 15:35:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:35:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:54,689 INFO L225 Difference]: With dead ends: 10271 [2022-03-01 15:35:54,689 INFO L226 Difference]: Without dead ends: 10005 [2022-03-01 15:35:54,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:35:54,689 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 869 mSDsluCounter, 7882 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:54,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 8157 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:35:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10005 states. [2022-03-01 15:35:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10005 to 5383. [2022-03-01 15:35:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-03-01 15:35:54,772 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-03-01 15:35:54,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:54,772 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-03-01 15:35:54,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:54,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-03-01 15:35:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:54,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:54,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:54,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-01 15:35:54,778 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:54,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1505573899, now seen corresponding path program 77 times [2022-03-01 15:35:54,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:54,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731064997] [2022-03-01 15:35:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:54,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:55,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:55,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731064997] [2022-03-01 15:35:55,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731064997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:55,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:55,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:55,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890018186] [2022-03-01 15:35:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:55,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:55,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:55,191 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:56,681 INFO L93 Difference]: Finished difference Result 10185 states and 26809 transitions. [2022-03-01 15:35:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:35:56,682 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:35:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:56,699 INFO L225 Difference]: With dead ends: 10185 [2022-03-01 15:35:56,699 INFO L226 Difference]: Without dead ends: 9794 [2022-03-01 15:35:56,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:35:56,700 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 868 mSDsluCounter, 6949 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:56,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 7246 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:35:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9794 states. [2022-03-01 15:35:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9794 to 5255. [2022-03-01 15:35:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-03-01 15:35:56,785 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-03-01 15:35:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:56,785 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-03-01 15:35:56,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-03-01 15:35:56,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:35:56,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:56,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:56,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-01 15:35:56,790 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1552812187, now seen corresponding path program 78 times [2022-03-01 15:35:56,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:56,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169458040] [2022-03-01 15:35:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:57,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:57,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169458040] [2022-03-01 15:35:57,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169458040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:57,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:57,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:35:57,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961240863] [2022-03-01 15:35:57,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:57,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:35:57,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:57,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:35:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:35:57,047 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:00,174 INFO L93 Difference]: Finished difference Result 11152 states and 29205 transitions. [2022-03-01 15:36:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 15:36:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:00,186 INFO L225 Difference]: With dead ends: 11152 [2022-03-01 15:36:00,186 INFO L226 Difference]: Without dead ends: 10297 [2022-03-01 15:36:00,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1606, Invalid=5036, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:36:00,187 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1495 mSDsluCounter, 7809 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:00,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 8078 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10297 states. [2022-03-01 15:36:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10297 to 5259. [2022-03-01 15:36:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:00,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-03-01 15:36:00,258 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-03-01 15:36:00,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:00,259 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-03-01 15:36:00,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:00,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-03-01 15:36:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:00,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:00,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:00,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-01 15:36:00,264 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:00,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1000157505, now seen corresponding path program 79 times [2022-03-01 15:36:00,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:00,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602470094] [2022-03-01 15:36:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:00,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:00,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:00,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602470094] [2022-03-01 15:36:00,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602470094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:00,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:00,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:00,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808067460] [2022-03-01 15:36:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:00,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:00,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:00,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:00,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:00,520 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:03,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:03,682 INFO L93 Difference]: Finished difference Result 10718 states and 28095 transitions. [2022-03-01 15:36:03,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:36:03,683 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:03,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:03,696 INFO L225 Difference]: With dead ends: 10718 [2022-03-01 15:36:03,697 INFO L226 Difference]: Without dead ends: 9894 [2022-03-01 15:36:03,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1430, Invalid=4732, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:36:03,698 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1308 mSDsluCounter, 8192 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 8458 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:03,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1308 Valid, 8458 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:36:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9894 states. [2022-03-01 15:36:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9894 to 5311. [2022-03-01 15:36:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-03-01 15:36:03,786 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-03-01 15:36:03,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:03,786 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-03-01 15:36:03,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-03-01 15:36:03,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:03,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:03,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:03,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-01 15:36:03,792 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:03,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 458624833, now seen corresponding path program 80 times [2022-03-01 15:36:03,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:03,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466851217] [2022-03-01 15:36:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:04,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:04,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466851217] [2022-03-01 15:36:04,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466851217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:04,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:04,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:04,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322471185] [2022-03-01 15:36:04,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:04,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:04,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:04,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:04,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:04,211 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:06,319 INFO L93 Difference]: Finished difference Result 10284 states and 26937 transitions. [2022-03-01 15:36:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:36:06,319 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:06,332 INFO L225 Difference]: With dead ends: 10284 [2022-03-01 15:36:06,333 INFO L226 Difference]: Without dead ends: 9863 [2022-03-01 15:36:06,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:36:06,334 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1219 mSDsluCounter, 7467 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 7737 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:06,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 7737 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:06,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-03-01 15:36:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5315. [2022-03-01 15:36:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-03-01 15:36:06,414 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-03-01 15:36:06,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:06,414 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-03-01 15:36:06,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-03-01 15:36:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:06,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:06,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:06,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-01 15:36:06,419 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:06,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:06,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1555844971, now seen corresponding path program 81 times [2022-03-01 15:36:06,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:06,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142163651] [2022-03-01 15:36:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:06,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:06,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:06,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142163651] [2022-03-01 15:36:06,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142163651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:06,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:06,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:06,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669803639] [2022-03-01 15:36:06,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:06,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:06,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:06,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:06,712 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:08,727 INFO L93 Difference]: Finished difference Result 10082 states and 26477 transitions. [2022-03-01 15:36:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:36:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:08,738 INFO L225 Difference]: With dead ends: 10082 [2022-03-01 15:36:08,738 INFO L226 Difference]: Without dead ends: 9692 [2022-03-01 15:36:08,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:36:08,738 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 980 mSDsluCounter, 7734 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 7998 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:08,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 7998 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9692 states. [2022-03-01 15:36:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9692 to 5327. [2022-03-01 15:36:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-03-01 15:36:08,817 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-03-01 15:36:08,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:08,818 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-03-01 15:36:08,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-03-01 15:36:08,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:08,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:08,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:08,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-01 15:36:08,824 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash 410748767, now seen corresponding path program 82 times [2022-03-01 15:36:08,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:08,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789700614] [2022-03-01 15:36:08,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:08,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:09,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:09,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789700614] [2022-03-01 15:36:09,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789700614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:09,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:09,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:09,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615047160] [2022-03-01 15:36:09,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:09,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:09,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:09,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:09,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:09,132 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:11,271 INFO L93 Difference]: Finished difference Result 9939 states and 26103 transitions. [2022-03-01 15:36:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:36:11,271 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:11,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:11,285 INFO L225 Difference]: With dead ends: 9939 [2022-03-01 15:36:11,285 INFO L226 Difference]: Without dead ends: 9642 [2022-03-01 15:36:11,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:36:11,286 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 944 mSDsluCounter, 7166 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 7444 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:11,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 7444 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2022-03-01 15:36:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 5331. [2022-03-01 15:36:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-03-01 15:36:11,368 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-03-01 15:36:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-03-01 15:36:11,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-03-01 15:36:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:11,373 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:11,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:11,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-01 15:36:11,374 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2005829013, now seen corresponding path program 83 times [2022-03-01 15:36:11,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:11,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404658438] [2022-03-01 15:36:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:11,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:11,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:11,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404658438] [2022-03-01 15:36:11,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404658438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:11,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:11,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:11,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351062294] [2022-03-01 15:36:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:11,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:11,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:11,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:11,661 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:13,498 INFO L93 Difference]: Finished difference Result 9839 states and 25849 transitions. [2022-03-01 15:36:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:36:13,498 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:13,531 INFO L225 Difference]: With dead ends: 9839 [2022-03-01 15:36:13,531 INFO L226 Difference]: Without dead ends: 9573 [2022-03-01 15:36:13,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:36:13,532 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 860 mSDsluCounter, 7415 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 7693 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:13,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 7693 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2022-03-01 15:36:13,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 5335. [2022-03-01 15:36:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-01 15:36:13,596 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-01 15:36:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:13,596 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-01 15:36:13,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-01 15:36:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:13,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:13,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:13,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-01 15:36:13,601 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:13,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:13,602 INFO L85 PathProgramCache]: Analyzing trace with hash 120289811, now seen corresponding path program 84 times [2022-03-01 15:36:13,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:13,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385578641] [2022-03-01 15:36:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:13,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:13,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:13,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385578641] [2022-03-01 15:36:13,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385578641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:13,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:13,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:13,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802918261] [2022-03-01 15:36:13,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:13,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:13,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:13,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:13,963 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:15,992 INFO L93 Difference]: Finished difference Result 9705 states and 25501 transitions. [2022-03-01 15:36:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:36:15,992 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:16,004 INFO L225 Difference]: With dead ends: 9705 [2022-03-01 15:36:16,004 INFO L226 Difference]: Without dead ends: 9346 [2022-03-01 15:36:16,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=737, Invalid=2569, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:36:16,005 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 832 mSDsluCounter, 6899 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 7190 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:16,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 7190 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2022-03-01 15:36:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 5239. [2022-03-01 15:36:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 2.631729667812142) internal successors, (13785), 5238 states have internal predecessors, (13785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 13785 transitions. [2022-03-01 15:36:16,075 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 13785 transitions. Word has length 135 [2022-03-01 15:36:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:16,075 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 13785 transitions. [2022-03-01 15:36:16,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 13785 transitions. [2022-03-01 15:36:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:16,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:16,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:16,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-01 15:36:16,080 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1239497461, now seen corresponding path program 85 times [2022-03-01 15:36:16,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:16,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164411581] [2022-03-01 15:36:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:16,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:16,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:16,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164411581] [2022-03-01 15:36:16,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164411581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:16,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:16,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:16,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125150158] [2022-03-01 15:36:16,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:16,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:16,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:16,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:16,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:16,479 INFO L87 Difference]: Start difference. First operand 5239 states and 13785 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:18,960 INFO L93 Difference]: Finished difference Result 9501 states and 25028 transitions. [2022-03-01 15:36:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:36:18,960 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:18,973 INFO L225 Difference]: With dead ends: 9501 [2022-03-01 15:36:18,973 INFO L226 Difference]: Without dead ends: 9210 [2022-03-01 15:36:18,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=941, Invalid=3091, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:36:18,974 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 878 mSDsluCounter, 7302 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 7591 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:18,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 7591 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:36:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9210 states. [2022-03-01 15:36:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9210 to 5331. [2022-03-01 15:36:19,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-03-01 15:36:19,065 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-03-01 15:36:19,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:19,065 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-03-01 15:36:19,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-03-01 15:36:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:19,071 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:19,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:19,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-01 15:36:19,071 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 947791433, now seen corresponding path program 86 times [2022-03-01 15:36:19,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:19,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600472154] [2022-03-01 15:36:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:19,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:19,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:19,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600472154] [2022-03-01 15:36:19,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600472154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:19,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:19,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:19,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166466588] [2022-03-01 15:36:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:19,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:19,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:19,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:19,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:19,409 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:21,382 INFO L93 Difference]: Finished difference Result 9515 states and 25058 transitions. [2022-03-01 15:36:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:36:21,383 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:21,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:21,394 INFO L225 Difference]: With dead ends: 9515 [2022-03-01 15:36:21,394 INFO L226 Difference]: Without dead ends: 9249 [2022-03-01 15:36:21,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=749, Invalid=2791, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:36:21,395 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 850 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:21,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 7681 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9249 states. [2022-03-01 15:36:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9249 to 5335. [2022-03-01 15:36:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-03-01 15:36:21,466 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-03-01 15:36:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:21,467 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-03-01 15:36:21,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-03-01 15:36:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:21,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:21,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:21,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-01 15:36:21,472 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1221057039, now seen corresponding path program 87 times [2022-03-01 15:36:21,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:21,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119132987] [2022-03-01 15:36:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:21,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:21,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:21,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119132987] [2022-03-01 15:36:21,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119132987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:21,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:21,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:21,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643593978] [2022-03-01 15:36:21,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:21,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:21,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:21,815 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:24,089 INFO L93 Difference]: Finished difference Result 9477 states and 24958 transitions. [2022-03-01 15:36:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:36:24,089 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:24,102 INFO L225 Difference]: With dead ends: 9477 [2022-03-01 15:36:24,102 INFO L226 Difference]: Without dead ends: 9206 [2022-03-01 15:36:24,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=823, Invalid=2837, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:36:24,115 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 851 mSDsluCounter, 7288 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 7579 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:24,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 7579 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9206 states. [2022-03-01 15:36:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9206 to 5327. [2022-03-01 15:36:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-03-01 15:36:24,235 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-03-01 15:36:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:24,235 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-03-01 15:36:24,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-03-01 15:36:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:24,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:24,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:24,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-01 15:36:24,242 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:24,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -848276873, now seen corresponding path program 88 times [2022-03-01 15:36:24,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:24,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19596119] [2022-03-01 15:36:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:24,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:24,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19596119] [2022-03-01 15:36:24,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19596119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:24,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:24,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:24,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145750260] [2022-03-01 15:36:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:24,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:24,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:24,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:24,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:24,649 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:26,449 INFO L93 Difference]: Finished difference Result 9647 states and 25396 transitions. [2022-03-01 15:36:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:36:26,449 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:26,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:26,461 INFO L225 Difference]: With dead ends: 9647 [2022-03-01 15:36:26,462 INFO L226 Difference]: Without dead ends: 9350 [2022-03-01 15:36:26,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=916, Invalid=3374, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:36:26,462 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 932 mSDsluCounter, 7526 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:26,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 7793 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2022-03-01 15:36:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 5331. [2022-03-01 15:36:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-03-01 15:36:26,547 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-03-01 15:36:26,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:26,547 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-03-01 15:36:26,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-03-01 15:36:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:26,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:26,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:26,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-01 15:36:26,553 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:26,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:26,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1030112643, now seen corresponding path program 89 times [2022-03-01 15:36:26,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:26,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844384222] [2022-03-01 15:36:26,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:26,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:26,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:26,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844384222] [2022-03-01 15:36:26,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844384222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:26,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:26,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:26,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598601957] [2022-03-01 15:36:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:26,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:26,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:26,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:26,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:26,815 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:28,353 INFO L93 Difference]: Finished difference Result 9531 states and 25098 transitions. [2022-03-01 15:36:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:36:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:28,392 INFO L225 Difference]: With dead ends: 9531 [2022-03-01 15:36:28,393 INFO L226 Difference]: Without dead ends: 9265 [2022-03-01 15:36:28,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=779, Invalid=2881, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:36:28,393 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 890 mSDsluCounter, 7013 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 7299 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:28,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 7299 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2022-03-01 15:36:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 5335. [2022-03-01 15:36:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-03-01 15:36:28,602 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-03-01 15:36:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:28,602 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-03-01 15:36:28,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-03-01 15:36:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:28,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:28,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:28,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-01 15:36:28,608 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1138735829, now seen corresponding path program 90 times [2022-03-01 15:36:28,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:28,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510630608] [2022-03-01 15:36:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:28,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:28,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:28,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510630608] [2022-03-01 15:36:28,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510630608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:28,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:28,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:28,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082053913] [2022-03-01 15:36:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:28,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:28,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:28,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:28,958 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:31,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:31,134 INFO L93 Difference]: Finished difference Result 9477 states and 24954 transitions. [2022-03-01 15:36:31,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:36:31,135 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:31,147 INFO L225 Difference]: With dead ends: 9477 [2022-03-01 15:36:31,148 INFO L226 Difference]: Without dead ends: 9202 [2022-03-01 15:36:31,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=793, Invalid=2747, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:36:31,148 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 843 mSDsluCounter, 7268 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:31,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 7556 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2022-03-01 15:36:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 5323. [2022-03-01 15:36:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-03-01 15:36:31,233 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-03-01 15:36:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:31,233 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-03-01 15:36:31,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-03-01 15:36:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:31,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:31,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:31,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-01 15:36:31,239 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1758041881, now seen corresponding path program 91 times [2022-03-01 15:36:31,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:31,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082402216] [2022-03-01 15:36:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:31,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:31,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082402216] [2022-03-01 15:36:31,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082402216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:31,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:31,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:31,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547926632] [2022-03-01 15:36:31,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:31,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:31,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:31,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:31,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:31,626 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:33,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:33,917 INFO L93 Difference]: Finished difference Result 9814 states and 25824 transitions. [2022-03-01 15:36:33,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:36:33,918 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:33,931 INFO L225 Difference]: With dead ends: 9814 [2022-03-01 15:36:33,931 INFO L226 Difference]: Without dead ends: 9424 [2022-03-01 15:36:33,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1106, Invalid=4006, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:36:33,932 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 984 mSDsluCounter, 8075 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 8325 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:33,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 8325 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:36:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2022-03-01 15:36:34,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 5335. [2022-03-01 15:36:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-03-01 15:36:34,026 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-03-01 15:36:34,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:34,026 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-03-01 15:36:34,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-03-01 15:36:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:34,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:34,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:34,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-01 15:36:34,032 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:34,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2143460379, now seen corresponding path program 92 times [2022-03-01 15:36:34,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:34,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099595021] [2022-03-01 15:36:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:34,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:34,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:34,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099595021] [2022-03-01 15:36:34,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099595021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:34,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:34,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:34,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413446366] [2022-03-01 15:36:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:34,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:34,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:34,426 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:36,921 INFO L93 Difference]: Finished difference Result 9663 states and 25428 transitions. [2022-03-01 15:36:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:36:36,921 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:36,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:36,933 INFO L225 Difference]: With dead ends: 9663 [2022-03-01 15:36:36,933 INFO L226 Difference]: Without dead ends: 9366 [2022-03-01 15:36:36,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:36:36,934 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 927 mSDsluCounter, 7543 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 7812 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:36,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 7812 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:36:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9366 states. [2022-03-01 15:36:37,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9366 to 5339. [2022-03-01 15:36:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-03-01 15:36:37,014 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-03-01 15:36:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:37,014 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-03-01 15:36:37,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-03-01 15:36:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:37,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:37,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:37,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-01 15:36:37,021 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash -273117401, now seen corresponding path program 93 times [2022-03-01 15:36:37,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:37,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048925715] [2022-03-01 15:36:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:37,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:37,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:37,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048925715] [2022-03-01 15:36:37,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048925715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:37,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:37,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:37,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305994877] [2022-03-01 15:36:37,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:37,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:37,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:37,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:37,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:37,417 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:39,310 INFO L93 Difference]: Finished difference Result 9547 states and 25130 transitions. [2022-03-01 15:36:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:36:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:39,323 INFO L225 Difference]: With dead ends: 9547 [2022-03-01 15:36:39,323 INFO L226 Difference]: Without dead ends: 9281 [2022-03-01 15:36:39,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=774, Invalid=2886, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:36:39,324 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 890 mSDsluCounter, 6998 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:39,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 7282 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2022-03-01 15:36:39,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 5343. [2022-03-01 15:36:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-03-01 15:36:39,420 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-03-01 15:36:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:39,420 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-03-01 15:36:39,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-03-01 15:36:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:39,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:39,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:39,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-01 15:36:39,426 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:39,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:39,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1853001423, now seen corresponding path program 94 times [2022-03-01 15:36:39,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:39,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235488897] [2022-03-01 15:36:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:39,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:39,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:39,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235488897] [2022-03-01 15:36:39,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235488897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:39,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:39,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:39,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948953851] [2022-03-01 15:36:39,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:39,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:39,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:39,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:39,832 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:41,735 INFO L93 Difference]: Finished difference Result 9485 states and 24964 transitions. [2022-03-01 15:36:41,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:36:41,735 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:41,747 INFO L225 Difference]: With dead ends: 9485 [2022-03-01 15:36:41,747 INFO L226 Difference]: Without dead ends: 9190 [2022-03-01 15:36:41,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=767, Invalid=2655, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:36:41,748 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 841 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 7538 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:41,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 7538 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:41,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2022-03-01 15:36:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 5311. [2022-03-01 15:36:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-03-01 15:36:41,829 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-03-01 15:36:41,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:41,829 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-03-01 15:36:41,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-03-01 15:36:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:41,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:41,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:41,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-01 15:36:41,835 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash -958361451, now seen corresponding path program 95 times [2022-03-01 15:36:41,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:41,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901782402] [2022-03-01 15:36:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:41,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:42,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:42,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901782402] [2022-03-01 15:36:42,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901782402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:42,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:42,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:42,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797405769] [2022-03-01 15:36:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:42,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:42,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:42,252 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:45,022 INFO L93 Difference]: Finished difference Result 10056 states and 26374 transitions. [2022-03-01 15:36:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:36:45,022 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:45,032 INFO L225 Difference]: With dead ends: 10056 [2022-03-01 15:36:45,032 INFO L226 Difference]: Without dead ends: 9635 [2022-03-01 15:36:45,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:36:45,032 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1234 mSDsluCounter, 7400 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 7663 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:45,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 7663 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-01 15:36:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5315. [2022-03-01 15:36:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-03-01 15:36:45,108 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-03-01 15:36:45,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:45,108 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-03-01 15:36:45,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-03-01 15:36:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:45,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:45,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:45,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-01 15:36:45,114 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:45,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 138858687, now seen corresponding path program 96 times [2022-03-01 15:36:45,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:45,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942597556] [2022-03-01 15:36:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:45,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:45,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942597556] [2022-03-01 15:36:45,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942597556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:45,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:45,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:45,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981193173] [2022-03-01 15:36:45,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:45,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:45,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:45,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:45,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:45,529 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:48,161 INFO L93 Difference]: Finished difference Result 9830 states and 25856 transitions. [2022-03-01 15:36:48,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:36:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:48,174 INFO L225 Difference]: With dead ends: 9830 [2022-03-01 15:36:48,175 INFO L226 Difference]: Without dead ends: 9440 [2022-03-01 15:36:48,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:36:48,176 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1010 mSDsluCounter, 7299 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:48,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 7569 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:36:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-03-01 15:36:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 5327. [2022-03-01 15:36:48,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-03-01 15:36:48,252 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-03-01 15:36:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:48,252 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-03-01 15:36:48,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-03-01 15:36:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:48,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:48,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:48,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-01 15:36:48,258 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:48,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1006237517, now seen corresponding path program 97 times [2022-03-01 15:36:48,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:48,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505856163] [2022-03-01 15:36:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:48,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:48,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:48,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505856163] [2022-03-01 15:36:48,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505856163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:48,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:48,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:48,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62107467] [2022-03-01 15:36:48,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:48,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:48,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:48,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:48,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:48,686 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:50,941 INFO L93 Difference]: Finished difference Result 9679 states and 25460 transitions. [2022-03-01 15:36:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:36:50,941 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:50,951 INFO L225 Difference]: With dead ends: 9679 [2022-03-01 15:36:50,951 INFO L226 Difference]: Without dead ends: 9382 [2022-03-01 15:36:50,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:36:50,951 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 928 mSDsluCounter, 7546 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:50,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 7813 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:36:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2022-03-01 15:36:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 5331. [2022-03-01 15:36:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-03-01 15:36:51,019 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-03-01 15:36:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:51,019 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-03-01 15:36:51,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-03-01 15:36:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:51,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:51,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-01 15:36:51,024 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 872151999, now seen corresponding path program 98 times [2022-03-01 15:36:51,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:51,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51327538] [2022-03-01 15:36:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:51,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:51,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:51,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51327538] [2022-03-01 15:36:51,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51327538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:51,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:51,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:51,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875710069] [2022-03-01 15:36:51,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:51,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:51,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:51,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:51,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:51,321 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:52,824 INFO L93 Difference]: Finished difference Result 9563 states and 25162 transitions. [2022-03-01 15:36:52,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:36:52,824 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:52,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:52,837 INFO L225 Difference]: With dead ends: 9563 [2022-03-01 15:36:52,837 INFO L226 Difference]: Without dead ends: 9297 [2022-03-01 15:36:52,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:36:52,838 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 877 mSDsluCounter, 7004 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 7286 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:52,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 7286 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2022-03-01 15:36:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 5335. [2022-03-01 15:36:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-03-01 15:36:52,915 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-03-01 15:36:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:52,915 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-03-01 15:36:52,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-03-01 15:36:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:52,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:52,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:52,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-01 15:36:52,921 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:52,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:52,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1296696473, now seen corresponding path program 99 times [2022-03-01 15:36:52,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:52,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104870216] [2022-03-01 15:36:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:52,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:53,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:53,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104870216] [2022-03-01 15:36:53,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104870216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:53,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:53,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:53,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826684584] [2022-03-01 15:36:53,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:53,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:53,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:53,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:53,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:53,336 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:55,098 INFO L93 Difference]: Finished difference Result 9477 states and 24938 transitions. [2022-03-01 15:36:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:36:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:55,110 INFO L225 Difference]: With dead ends: 9477 [2022-03-01 15:36:55,110 INFO L226 Difference]: Without dead ends: 9186 [2022-03-01 15:36:55,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:36:55,111 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 861 mSDsluCounter, 6866 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:55,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 7156 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:55,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2022-03-01 15:36:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 5307. [2022-03-01 15:36:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-03-01 15:36:55,187 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-03-01 15:36:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:55,187 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-03-01 15:36:55,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-03-01 15:36:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:55,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:55,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:55,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-01 15:36:55,200 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:55,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash 42393929, now seen corresponding path program 100 times [2022-03-01 15:36:55,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:55,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651883234] [2022-03-01 15:36:55,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:55,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:55,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:55,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651883234] [2022-03-01 15:36:55,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651883234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:55,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:55,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:55,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027701894] [2022-03-01 15:36:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:55,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:55,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:55,476 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:57,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:57,706 INFO L93 Difference]: Finished difference Result 10538 states and 27612 transitions. [2022-03-01 15:36:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:36:57,706 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:36:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:57,719 INFO L225 Difference]: With dead ends: 10538 [2022-03-01 15:36:57,719 INFO L226 Difference]: Without dead ends: 9714 [2022-03-01 15:36:57,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1430, Invalid=4732, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:36:57,720 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1344 mSDsluCounter, 7360 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 7646 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:57,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 7646 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:36:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9714 states. [2022-03-01 15:36:57,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9714 to 5359. [2022-03-01 15:36:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-03-01 15:36:57,804 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-03-01 15:36:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:57,804 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-03-01 15:36:57,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-03-01 15:36:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:36:57,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:57,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:57,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-01 15:36:57,811 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:57,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1824443585, now seen corresponding path program 101 times [2022-03-01 15:36:57,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:57,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293518668] [2022-03-01 15:36:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:58,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:58,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293518668] [2022-03-01 15:36:58,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293518668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:58,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:58,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:36:58,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099189970] [2022-03-01 15:36:58,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:58,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:36:58,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:58,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:36:58,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:36:58,192 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:01,267 INFO L93 Difference]: Finished difference Result 10104 states and 26454 transitions. [2022-03-01 15:37:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:37:01,268 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:01,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:01,278 INFO L225 Difference]: With dead ends: 10104 [2022-03-01 15:37:01,278 INFO L226 Difference]: Without dead ends: 9683 [2022-03-01 15:37:01,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:37:01,279 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1227 mSDsluCounter, 7563 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 7835 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:01,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 7835 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:37:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9683 states. [2022-03-01 15:37:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9683 to 5363. [2022-03-01 15:37:01,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-03-01 15:37:01,353 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-03-01 15:37:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:01,353 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-03-01 15:37:01,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-03-01 15:37:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:01,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:01,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:01,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-01 15:37:01,358 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:01,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:01,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1373303573, now seen corresponding path program 102 times [2022-03-01 15:37:01,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:01,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440475507] [2022-03-01 15:37:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:01,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:01,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:01,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440475507] [2022-03-01 15:37:01,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440475507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:01,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:01,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:01,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395249208] [2022-03-01 15:37:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:01,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:01,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:01,751 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:03,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:03,953 INFO L93 Difference]: Finished difference Result 9878 states and 25936 transitions. [2022-03-01 15:37:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:37:03,953 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:03,965 INFO L225 Difference]: With dead ends: 9878 [2022-03-01 15:37:03,965 INFO L226 Difference]: Without dead ends: 9488 [2022-03-01 15:37:03,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:37:03,967 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1004 mSDsluCounter, 7402 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:03,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 7679 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9488 states. [2022-03-01 15:37:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9488 to 5375. [2022-03-01 15:37:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-03-01 15:37:04,042 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-03-01 15:37:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:04,042 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-03-01 15:37:04,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-03-01 15:37:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:04,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:04,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:04,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-01 15:37:04,047 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:04,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:04,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1776567519, now seen corresponding path program 103 times [2022-03-01 15:37:04,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:04,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602495773] [2022-03-01 15:37:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:04,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:04,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:04,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602495773] [2022-03-01 15:37:04,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602495773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:04,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:04,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:04,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732125262] [2022-03-01 15:37:04,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:04,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:04,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:04,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:04,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:04,350 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:06,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:06,069 INFO L93 Difference]: Finished difference Result 9727 states and 25540 transitions. [2022-03-01 15:37:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:06,070 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:06,082 INFO L225 Difference]: With dead ends: 9727 [2022-03-01 15:37:06,082 INFO L226 Difference]: Without dead ends: 9430 [2022-03-01 15:37:06,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:37:06,083 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 923 mSDsluCounter, 8068 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 8334 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:06,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 8334 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9430 states. [2022-03-01 15:37:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9430 to 5379. [2022-03-01 15:37:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-03-01 15:37:06,156 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-03-01 15:37:06,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:06,156 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-03-01 15:37:06,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-03-01 15:37:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:06,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:06,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:06,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-01 15:37:06,161 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:06,162 INFO L85 PathProgramCache]: Analyzing trace with hash -640010261, now seen corresponding path program 104 times [2022-03-01 15:37:06,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:06,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477683562] [2022-03-01 15:37:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:06,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:06,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:06,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477683562] [2022-03-01 15:37:06,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477683562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:06,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:06,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:06,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868145501] [2022-03-01 15:37:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:06,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:06,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:06,455 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:07,955 INFO L93 Difference]: Finished difference Result 9611 states and 25242 transitions. [2022-03-01 15:37:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:37:07,955 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:07,968 INFO L225 Difference]: With dead ends: 9611 [2022-03-01 15:37:07,968 INFO L226 Difference]: Without dead ends: 9345 [2022-03-01 15:37:07,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:37:07,969 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 876 mSDsluCounter, 7505 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:07,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [876 Valid, 7787 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:07,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-03-01 15:37:08,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 5383. [2022-03-01 15:37:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-03-01 15:37:08,061 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-03-01 15:37:08,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:08,061 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-03-01 15:37:08,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:08,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-03-01 15:37:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:08,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:08,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:08,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-01 15:37:08,068 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1486108563, now seen corresponding path program 105 times [2022-03-01 15:37:08,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:08,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926625434] [2022-03-01 15:37:08,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:08,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:08,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926625434] [2022-03-01 15:37:08,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926625434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:08,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:08,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:08,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957597887] [2022-03-01 15:37:08,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:08,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:08,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:08,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:08,587 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:10,705 INFO L93 Difference]: Finished difference Result 9525 states and 25018 transitions. [2022-03-01 15:37:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:37:10,706 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:10,718 INFO L225 Difference]: With dead ends: 9525 [2022-03-01 15:37:10,718 INFO L226 Difference]: Without dead ends: 9134 [2022-03-01 15:37:10,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=737, Invalid=2569, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:37:10,719 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 851 mSDsluCounter, 7359 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 7650 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:10,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 7650 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-03-01 15:37:10,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 5255. [2022-03-01 15:37:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:10,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-03-01 15:37:10,793 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-03-01 15:37:10,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:10,793 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-03-01 15:37:10,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-03-01 15:37:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:10,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:10,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:10,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-01 15:37:10,798 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 249527353, now seen corresponding path program 106 times [2022-03-01 15:37:10,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:10,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055746721] [2022-03-01 15:37:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:11,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:11,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055746721] [2022-03-01 15:37:11,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055746721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:11,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:11,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:11,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444848325] [2022-03-01 15:37:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:11,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:11,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:11,051 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:13,522 INFO L93 Difference]: Finished difference Result 10924 states and 28586 transitions. [2022-03-01 15:37:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 15:37:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:13,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:13,537 INFO L225 Difference]: With dead ends: 10924 [2022-03-01 15:37:13,537 INFO L226 Difference]: Without dead ends: 10069 [2022-03-01 15:37:13,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1249 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1586, Invalid=5056, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:37:13,538 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1463 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 7738 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:13,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 7738 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:13,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10069 states. [2022-03-01 15:37:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10069 to 5259. [2022-03-01 15:37:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-03-01 15:37:13,653 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-03-01 15:37:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:13,653 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-03-01 15:37:13,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-03-01 15:37:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:13,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:13,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:13,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-01 15:37:13,658 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:13,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1991524957, now seen corresponding path program 107 times [2022-03-01 15:37:13,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:13,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392960941] [2022-03-01 15:37:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:13,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:13,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392960941] [2022-03-01 15:37:13,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392960941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:13,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:13,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:13,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669655138] [2022-03-01 15:37:13,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:13,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:13,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:13,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:13,963 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:16,310 INFO L93 Difference]: Finished difference Result 10490 states and 27476 transitions. [2022-03-01 15:37:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:37:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:16,323 INFO L225 Difference]: With dead ends: 10490 [2022-03-01 15:37:16,323 INFO L226 Difference]: Without dead ends: 9666 [2022-03-01 15:37:16,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1409, Invalid=4753, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:37:16,324 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 1315 mSDsluCounter, 7833 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 8112 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:16,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 8112 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:16,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2022-03-01 15:37:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 5311. [2022-03-01 15:37:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:16,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-03-01 15:37:16,414 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-03-01 15:37:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:16,414 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-03-01 15:37:16,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-03-01 15:37:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:16,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:16,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:16,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-01 15:37:16,420 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash -844660001, now seen corresponding path program 108 times [2022-03-01 15:37:16,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:16,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099085464] [2022-03-01 15:37:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:16,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:16,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:16,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099085464] [2022-03-01 15:37:16,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099085464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:16,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:16,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:16,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681537911] [2022-03-01 15:37:16,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:16,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:16,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:16,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:16,818 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:19,599 INFO L93 Difference]: Finished difference Result 10056 states and 26318 transitions. [2022-03-01 15:37:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:37:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:19,610 INFO L225 Difference]: With dead ends: 10056 [2022-03-01 15:37:19,610 INFO L226 Difference]: Without dead ends: 9635 [2022-03-01 15:37:19,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1248, Invalid=4452, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:37:19,611 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1209 mSDsluCounter, 7566 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 7838 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:19,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 7838 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:19,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-01 15:37:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5315. [2022-03-01 15:37:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-03-01 15:37:19,676 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-03-01 15:37:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:19,676 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-03-01 15:37:19,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-03-01 15:37:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:19,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:19,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:19,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-01 15:37:19,681 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash 252560137, now seen corresponding path program 109 times [2022-03-01 15:37:19,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:19,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629342655] [2022-03-01 15:37:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:19,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:19,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629342655] [2022-03-01 15:37:19,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629342655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:19,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:19,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:19,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711131699] [2022-03-01 15:37:19,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:19,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:19,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:19,952 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:22,232 INFO L93 Difference]: Finished difference Result 9830 states and 25800 transitions. [2022-03-01 15:37:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:37:22,233 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:22,245 INFO L225 Difference]: With dead ends: 9830 [2022-03-01 15:37:22,245 INFO L226 Difference]: Without dead ends: 9440 [2022-03-01 15:37:22,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1096, Invalid=4160, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:37:22,246 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 981 mSDsluCounter, 7843 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 8109 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:22,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 8109 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-03-01 15:37:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 5327. [2022-03-01 15:37:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-03-01 15:37:22,325 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-03-01 15:37:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:22,325 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-03-01 15:37:22,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-03-01 15:37:22,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:22,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:22,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:22,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-01 15:37:22,331 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:22,331 INFO L85 PathProgramCache]: Analyzing trace with hash -892536067, now seen corresponding path program 110 times [2022-03-01 15:37:22,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:22,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528315750] [2022-03-01 15:37:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:22,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:22,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:22,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528315750] [2022-03-01 15:37:22,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528315750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:22,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:22,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:22,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986396824] [2022-03-01 15:37:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:22,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:22,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:22,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:22,739 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:24,923 INFO L93 Difference]: Finished difference Result 9679 states and 25404 transitions. [2022-03-01 15:37:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:24,924 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:24,935 INFO L225 Difference]: With dead ends: 9679 [2022-03-01 15:37:24,935 INFO L226 Difference]: Without dead ends: 9382 [2022-03-01 15:37:24,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=909, Invalid=3513, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:37:24,936 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 934 mSDsluCounter, 7277 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 7557 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:24,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 7557 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2022-03-01 15:37:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 5331. [2022-03-01 15:37:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-03-01 15:37:25,011 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-03-01 15:37:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-03-01 15:37:25,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-03-01 15:37:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:25,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:25,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:25,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-01 15:37:25,018 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:25,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 985853449, now seen corresponding path program 111 times [2022-03-01 15:37:25,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:25,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639850559] [2022-03-01 15:37:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:25,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:25,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:25,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639850559] [2022-03-01 15:37:25,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639850559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:25,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:25,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:25,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374815650] [2022-03-01 15:37:25,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:25,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:25,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:25,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:25,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:25,342 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:27,134 INFO L93 Difference]: Finished difference Result 9563 states and 25106 transitions. [2022-03-01 15:37:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:37:27,134 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:27,146 INFO L225 Difference]: With dead ends: 9563 [2022-03-01 15:37:27,147 INFO L226 Difference]: Without dead ends: 9297 [2022-03-01 15:37:27,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:37:27,147 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 855 mSDsluCounter, 7530 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 7810 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:27,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 7810 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9297 states. [2022-03-01 15:37:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9297 to 5335. [2022-03-01 15:37:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-01 15:37:27,220 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-01 15:37:27,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:27,220 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-01 15:37:27,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:27,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-01 15:37:27,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:27,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:27,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:27,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-01 15:37:27,226 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:27,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1182995023, now seen corresponding path program 112 times [2022-03-01 15:37:27,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:27,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998361134] [2022-03-01 15:37:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:27,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:27,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:27,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:27,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998361134] [2022-03-01 15:37:27,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998361134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:27,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:27,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:27,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423798434] [2022-03-01 15:37:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:27,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:27,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:27,509 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:28,950 INFO L93 Difference]: Finished difference Result 9477 states and 24882 transitions. [2022-03-01 15:37:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:37:28,951 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:28,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:28,961 INFO L225 Difference]: With dead ends: 9477 [2022-03-01 15:37:28,961 INFO L226 Difference]: Without dead ends: 9130 [2022-03-01 15:37:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=735, Invalid=2571, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:37:28,962 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 845 mSDsluCounter, 7013 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 7306 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:37:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2022-03-01 15:37:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 5251. [2022-03-01 15:37:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.6312380952380954) internal successors, (13814), 5250 states have internal predecessors, (13814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13814 transitions. [2022-03-01 15:37:29,026 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13814 transitions. Word has length 135 [2022-03-01 15:37:29,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:29,026 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13814 transitions. [2022-03-01 15:37:29,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13814 transitions. [2022-03-01 15:37:29,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:29,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:29,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:29,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-01 15:37:29,031 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:29,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:29,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1227075349, now seen corresponding path program 113 times [2022-03-01 15:37:29,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:29,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988201945] [2022-03-01 15:37:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:29,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:29,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:29,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988201945] [2022-03-01 15:37:29,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988201945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:29,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:29,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:29,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809582122] [2022-03-01 15:37:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:29,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:29,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:29,321 INFO L87 Difference]: Start difference. First operand 5251 states and 13814 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:31,937 INFO L93 Difference]: Finished difference Result 9553 states and 25066 transitions. [2022-03-01 15:37:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-01 15:37:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:31,950 INFO L225 Difference]: With dead ends: 9553 [2022-03-01 15:37:31,950 INFO L226 Difference]: Without dead ends: 8605 [2022-03-01 15:37:31,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1750, Invalid=5390, Unknown=0, NotChecked=0, Total=7140 [2022-03-01 15:37:31,951 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1466 mSDsluCounter, 7545 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 7839 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:31,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 7839 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2022-03-01 15:37:32,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 5263. [2022-03-01 15:37:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.6292284302546562) internal successors, (13835), 5262 states have internal predecessors, (13835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13835 transitions. [2022-03-01 15:37:32,051 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13835 transitions. Word has length 135 [2022-03-01 15:37:32,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:32,051 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13835 transitions. [2022-03-01 15:37:32,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13835 transitions. [2022-03-01 15:37:32,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:32,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:32,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:32,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-01 15:37:32,056 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:32,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:32,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1243256657, now seen corresponding path program 114 times [2022-03-01 15:37:32,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:32,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278035152] [2022-03-01 15:37:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:32,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:32,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:32,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278035152] [2022-03-01 15:37:32,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278035152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:32,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:32,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:32,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707334409] [2022-03-01 15:37:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:32,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:32,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:32,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:32,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:32,368 INFO L87 Difference]: Start difference. First operand 5263 states and 13835 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:35,258 INFO L93 Difference]: Finished difference Result 10395 states and 27154 transitions. [2022-03-01 15:37:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 15:37:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:35,271 INFO L225 Difference]: With dead ends: 10395 [2022-03-01 15:37:35,272 INFO L226 Difference]: Without dead ends: 9540 [2022-03-01 15:37:35,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1564, Invalid=5078, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:37:35,273 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1506 mSDsluCounter, 7957 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:35,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 8230 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:35,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9540 states. [2022-03-01 15:37:35,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9540 to 5267. [2022-03-01 15:37:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 2.6285605772882645) internal successors, (13842), 5266 states have internal predecessors, (13842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 13842 transitions. [2022-03-01 15:37:35,351 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 13842 transitions. Word has length 135 [2022-03-01 15:37:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:35,351 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 13842 transitions. [2022-03-01 15:37:35,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 13842 transitions. [2022-03-01 15:37:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:35,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:35,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:35,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-01 15:37:35,357 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1309713035, now seen corresponding path program 115 times [2022-03-01 15:37:35,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:35,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363067793] [2022-03-01 15:37:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:35,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:35,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:35,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363067793] [2022-03-01 15:37:35,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363067793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:35,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:35,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:35,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184703989] [2022-03-01 15:37:35,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:35,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:35,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:35,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:35,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:35,788 INFO L87 Difference]: Start difference. First operand 5267 states and 13842 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:38,383 INFO L93 Difference]: Finished difference Result 9961 states and 26044 transitions. [2022-03-01 15:37:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:37:38,383 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:38,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:38,393 INFO L225 Difference]: With dead ends: 9961 [2022-03-01 15:37:38,393 INFO L226 Difference]: Without dead ends: 9137 [2022-03-01 15:37:38,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1391, Invalid=4771, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:37:38,393 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1301 mSDsluCounter, 7999 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 8267 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:38,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 8267 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:38,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9137 states. [2022-03-01 15:37:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9137 to 5319. [2022-03-01 15:37:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 2.619969913501316) internal successors, (13933), 5318 states have internal predecessors, (13933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 13933 transitions. [2022-03-01 15:37:38,454 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 13933 transitions. Word has length 135 [2022-03-01 15:37:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:38,454 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 13933 transitions. [2022-03-01 15:37:38,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 13933 transitions. [2022-03-01 15:37:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:38,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:38,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:38,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-01 15:37:38,459 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:38,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash 149069303, now seen corresponding path program 116 times [2022-03-01 15:37:38,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:38,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245828208] [2022-03-01 15:37:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:38,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:38,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245828208] [2022-03-01 15:37:38,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245828208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:38,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:38,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:38,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511200351] [2022-03-01 15:37:38,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:38,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:38,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:38,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:38,852 INFO L87 Difference]: Start difference. First operand 5319 states and 13933 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:41,420 INFO L93 Difference]: Finished difference Result 9527 states and 24886 transitions. [2022-03-01 15:37:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:37:41,421 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:41,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:41,435 INFO L225 Difference]: With dead ends: 9527 [2022-03-01 15:37:41,435 INFO L226 Difference]: Without dead ends: 9106 [2022-03-01 15:37:41,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1231, Invalid=4469, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:37:41,436 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1207 mSDsluCounter, 7728 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:41,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 7989 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:41,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2022-03-01 15:37:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 5323. [2022-03-01 15:37:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.619316046599023) internal successors, (13940), 5322 states have internal predecessors, (13940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13940 transitions. [2022-03-01 15:37:41,528 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13940 transitions. Word has length 135 [2022-03-01 15:37:41,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:41,528 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13940 transitions. [2022-03-01 15:37:41,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13940 transitions. [2022-03-01 15:37:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:41,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:41,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:41,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-01 15:37:41,535 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:41,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1246289441, now seen corresponding path program 117 times [2022-03-01 15:37:41,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:41,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105978961] [2022-03-01 15:37:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:41,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:41,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105978961] [2022-03-01 15:37:41,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105978961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:41,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:41,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:41,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699170072] [2022-03-01 15:37:41,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:41,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:41,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:41,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:41,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:41,974 INFO L87 Difference]: Start difference. First operand 5323 states and 13940 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:44,036 INFO L93 Difference]: Finished difference Result 9301 states and 24368 transitions. [2022-03-01 15:37:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:37:44,036 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:44,048 INFO L225 Difference]: With dead ends: 9301 [2022-03-01 15:37:44,048 INFO L226 Difference]: Without dead ends: 8911 [2022-03-01 15:37:44,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1082, Invalid=4174, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:37:44,049 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 970 mSDsluCounter, 8012 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 8266 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:44,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 8266 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:44,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8911 states. [2022-03-01 15:37:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8911 to 5335. [2022-03-01 15:37:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.617360329958755) internal successors, (13961), 5334 states have internal predecessors, (13961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13961 transitions. [2022-03-01 15:37:44,117 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13961 transitions. Word has length 135 [2022-03-01 15:37:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:44,117 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13961 transitions. [2022-03-01 15:37:44,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13961 transitions. [2022-03-01 15:37:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:44,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:44,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:44,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-01 15:37:44,122 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:44,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash 101193237, now seen corresponding path program 118 times [2022-03-01 15:37:44,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:44,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424242443] [2022-03-01 15:37:44,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:44,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:44,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:44,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424242443] [2022-03-01 15:37:44,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424242443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:44,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:44,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:44,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322194504] [2022-03-01 15:37:44,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:44,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:44,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:44,551 INFO L87 Difference]: Start difference. First operand 5335 states and 13961 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:46,439 INFO L93 Difference]: Finished difference Result 9150 states and 23972 transitions. [2022-03-01 15:37:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:46,451 INFO L225 Difference]: With dead ends: 9150 [2022-03-01 15:37:46,451 INFO L226 Difference]: Without dead ends: 8853 [2022-03-01 15:37:46,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=899, Invalid=3523, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:37:46,452 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 926 mSDsluCounter, 7435 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 7704 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:46,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 7704 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2022-03-01 15:37:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 5339. [2022-03-01 15:37:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6167103784188837) internal successors, (13968), 5338 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13968 transitions. [2022-03-01 15:37:46,554 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13968 transitions. Word has length 135 [2022-03-01 15:37:46,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:46,555 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13968 transitions. [2022-03-01 15:37:46,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:46,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13968 transitions. [2022-03-01 15:37:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:46,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:46,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:46,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-01 15:37:46,560 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:46,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1979582753, now seen corresponding path program 119 times [2022-03-01 15:37:46,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:46,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116953148] [2022-03-01 15:37:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:46,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:46,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116953148] [2022-03-01 15:37:46,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116953148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:46,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:46,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:46,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172690683] [2022-03-01 15:37:46,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:46,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:46,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:46,941 INFO L87 Difference]: Start difference. First operand 5339 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:48,776 INFO L93 Difference]: Finished difference Result 9034 states and 23674 transitions. [2022-03-01 15:37:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:37:48,776 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:48,787 INFO L225 Difference]: With dead ends: 9034 [2022-03-01 15:37:48,787 INFO L226 Difference]: Without dead ends: 8768 [2022-03-01 15:37:48,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:37:48,788 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 847 mSDsluCounter, 7712 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:48,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 7978 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-03-01 15:37:48,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 5343. [2022-03-01 15:37:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.616061400224635) internal successors, (13975), 5342 states have internal predecessors, (13975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13975 transitions. [2022-03-01 15:37:48,855 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13975 transitions. Word has length 135 [2022-03-01 15:37:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:48,855 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13975 transitions. [2022-03-01 15:37:48,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13975 transitions. [2022-03-01 15:37:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:48,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:48,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:48,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-01 15:37:48,861 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash -189265719, now seen corresponding path program 120 times [2022-03-01 15:37:48,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:48,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838534674] [2022-03-01 15:37:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:48,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:49,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:49,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838534674] [2022-03-01 15:37:49,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838534674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:49,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:49,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:49,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748468349] [2022-03-01 15:37:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:49,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:49,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:49,225 INFO L87 Difference]: Start difference. First operand 5343 states and 13975 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:50,697 INFO L93 Difference]: Finished difference Result 8948 states and 23450 transitions. [2022-03-01 15:37:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:37:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:50,708 INFO L225 Difference]: With dead ends: 8948 [2022-03-01 15:37:50,708 INFO L226 Difference]: Without dead ends: 8545 [2022-03-01 15:37:50,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=733, Invalid=2573, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:37:50,709 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 831 mSDsluCounter, 7542 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 7819 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:50,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 7819 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8545 states. [2022-03-01 15:37:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8545 to 5203. [2022-03-01 15:37:50,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 2.6309111880046134) internal successors, (13686), 5202 states have internal predecessors, (13686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:50,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 13686 transitions. [2022-03-01 15:37:50,778 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 13686 transitions. Word has length 135 [2022-03-01 15:37:50,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:50,778 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 13686 transitions. [2022-03-01 15:37:50,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 13686 transitions. [2022-03-01 15:37:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:50,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:50,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:50,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-01 15:37:50,784 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1597839895, now seen corresponding path program 121 times [2022-03-01 15:37:50,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:50,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920183953] [2022-03-01 15:37:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:51,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:51,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920183953] [2022-03-01 15:37:51,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920183953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:51,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:51,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:51,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486592311] [2022-03-01 15:37:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:51,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:51,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:51,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:51,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:51,227 INFO L87 Difference]: Start difference. First operand 5203 states and 13686 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:53,751 INFO L93 Difference]: Finished difference Result 11746 states and 30904 transitions. [2022-03-01 15:37:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:37:53,751 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:53,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:53,766 INFO L225 Difference]: With dead ends: 11746 [2022-03-01 15:37:53,766 INFO L226 Difference]: Without dead ends: 11371 [2022-03-01 15:37:53,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1186, Invalid=3644, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:37:53,767 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1201 mSDsluCounter, 6211 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:53,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 6492 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:37:53,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11371 states. [2022-03-01 15:37:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11371 to 5487. [2022-03-01 15:37:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-03-01 15:37:53,850 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-03-01 15:37:53,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:53,850 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-03-01 15:37:53,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:53,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-03-01 15:37:53,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:53,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:53,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:53,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-01 15:37:53,856 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash 196167733, now seen corresponding path program 122 times [2022-03-01 15:37:53,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:53,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745105209] [2022-03-01 15:37:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:54,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:54,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745105209] [2022-03-01 15:37:54,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745105209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:54,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:54,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:54,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581308180] [2022-03-01 15:37:54,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:54,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:54,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:54,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:54,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:54,144 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:56,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:56,101 INFO L93 Difference]: Finished difference Result 11794 states and 31020 transitions. [2022-03-01 15:37:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:56,101 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:56,113 INFO L225 Difference]: With dead ends: 11794 [2022-03-01 15:37:56,113 INFO L226 Difference]: Without dead ends: 11503 [2022-03-01 15:37:56,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1050, Invalid=3372, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:37:56,114 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1173 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 7183 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:56,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 7183 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-03-01 15:37:56,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5491. [2022-03-01 15:37:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-03-01 15:37:56,185 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-03-01 15:37:56,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:56,185 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-03-01 15:37:56,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:56,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-03-01 15:37:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:56,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:56,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:56,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-01 15:37:56,190 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:56,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:56,190 INFO L85 PathProgramCache]: Analyzing trace with hash -95538295, now seen corresponding path program 123 times [2022-03-01 15:37:56,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:56,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785362587] [2022-03-01 15:37:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:56,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:56,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:56,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785362587] [2022-03-01 15:37:56,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785362587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:56,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:56,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:56,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094250579] [2022-03-01 15:37:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:56,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:56,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:56,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:56,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:56,475 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:57,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:57,967 INFO L93 Difference]: Finished difference Result 11680 states and 30714 transitions. [2022-03-01 15:37:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:37:57,967 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:37:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:57,982 INFO L225 Difference]: With dead ends: 11680 [2022-03-01 15:37:57,982 INFO L226 Difference]: Without dead ends: 11414 [2022-03-01 15:37:57,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=795, Invalid=2627, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:37:57,983 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1106 mSDsluCounter, 6921 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 7177 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:57,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 7177 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:37:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-01 15:37:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5495. [2022-03-01 15:37:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-03-01 15:37:58,072 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-03-01 15:37:58,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:58,072 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-03-01 15:37:58,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-03-01 15:37:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:37:58,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:58,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:58,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-01 15:37:58,078 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2030580529, now seen corresponding path program 124 times [2022-03-01 15:37:58,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:58,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365769242] [2022-03-01 15:37:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:58,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:58,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365769242] [2022-03-01 15:37:58,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365769242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:58,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:58,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:37:58,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988488209] [2022-03-01 15:37:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:58,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:37:58,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:58,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:37:58,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:37:58,521 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:00,470 INFO L93 Difference]: Finished difference Result 11642 states and 30614 transitions. [2022-03-01 15:38:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:00,470 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:00,481 INFO L225 Difference]: With dead ends: 11642 [2022-03-01 15:38:00,481 INFO L226 Difference]: Without dead ends: 11359 [2022-03-01 15:38:00,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=850, Invalid=2810, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:00,482 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1095 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:00,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7165 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-01 15:38:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5475. [2022-03-01 15:38:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6346364632809647) internal successors, (14422), 5474 states have internal predecessors, (14422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14422 transitions. [2022-03-01 15:38:00,551 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14422 transitions. Word has length 135 [2022-03-01 15:38:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:00,552 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14422 transitions. [2022-03-01 15:38:00,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:00,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14422 transitions. [2022-03-01 15:38:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:00,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:00,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:00,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-01 15:38:00,557 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1301613335, now seen corresponding path program 125 times [2022-03-01 15:38:00,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:00,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543903464] [2022-03-01 15:38:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:00,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:00,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543903464] [2022-03-01 15:38:00,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543903464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:00,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:00,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:00,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407593023] [2022-03-01 15:38:00,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:00,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:00,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:00,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:00,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:00,975 INFO L87 Difference]: Start difference. First operand 5475 states and 14422 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:02,873 INFO L93 Difference]: Finished difference Result 11802 states and 31042 transitions. [2022-03-01 15:38:02,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:38:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:02,888 INFO L225 Difference]: With dead ends: 11802 [2022-03-01 15:38:02,888 INFO L226 Difference]: Without dead ends: 11511 [2022-03-01 15:38:02,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1026, Invalid=3264, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:02,889 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1152 mSDsluCounter, 7301 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 7560 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:02,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 7560 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11511 states. [2022-03-01 15:38:02,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11511 to 5483. [2022-03-01 15:38:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-01 15:38:02,971 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-01 15:38:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:02,971 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-01 15:38:02,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-01 15:38:02,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:02,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:02,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:02,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-01 15:38:02,977 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:02,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1009907307, now seen corresponding path program 126 times [2022-03-01 15:38:02,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:02,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137344318] [2022-03-01 15:38:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:03,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:03,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137344318] [2022-03-01 15:38:03,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137344318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:03,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:03,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:03,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722708457] [2022-03-01 15:38:03,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:03,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:03,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:03,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:03,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:03,364 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:05,129 INFO L93 Difference]: Finished difference Result 11752 states and 30912 transitions. [2022-03-01 15:38:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:05,142 INFO L225 Difference]: With dead ends: 11752 [2022-03-01 15:38:05,142 INFO L226 Difference]: Without dead ends: 11486 [2022-03-01 15:38:05,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=823, Invalid=2717, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:05,143 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1113 mSDsluCounter, 6581 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 6844 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:05,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 6844 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2022-03-01 15:38:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 5487. [2022-03-01 15:38:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-03-01 15:38:05,226 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-03-01 15:38:05,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:05,226 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-03-01 15:38:05,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-03-01 15:38:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:05,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:05,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:05,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-01 15:38:05,232 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:05,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1158941165, now seen corresponding path program 127 times [2022-03-01 15:38:05,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:05,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741341918] [2022-03-01 15:38:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:05,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:05,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:05,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741341918] [2022-03-01 15:38:05,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741341918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:05,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:05,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:05,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417501549] [2022-03-01 15:38:05,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:05,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:05,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:05,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:05,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:05,514 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:07,301 INFO L93 Difference]: Finished difference Result 11714 states and 30812 transitions. [2022-03-01 15:38:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:07,301 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:07,317 INFO L225 Difference]: With dead ends: 11714 [2022-03-01 15:38:07,317 INFO L226 Difference]: Without dead ends: 11443 [2022-03-01 15:38:07,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=855, Invalid=2805, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:07,318 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1095 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:07,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7146 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-03-01 15:38:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 5479. [2022-03-01 15:38:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-03-01 15:38:07,410 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-03-01 15:38:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:07,410 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-03-01 15:38:07,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-03-01 15:38:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:07,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:07,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:07,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-01 15:38:07,416 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:07,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash -786160999, now seen corresponding path program 128 times [2022-03-01 15:38:07,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:07,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784009414] [2022-03-01 15:38:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:07,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:07,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784009414] [2022-03-01 15:38:07,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784009414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:07,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:07,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:07,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673020913] [2022-03-01 15:38:07,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:07,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:07,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:07,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:07,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:07,821 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:10,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:10,028 INFO L93 Difference]: Finished difference Result 11804 states and 31030 transitions. [2022-03-01 15:38:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:38:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:10,042 INFO L225 Difference]: With dead ends: 11804 [2022-03-01 15:38:10,042 INFO L226 Difference]: Without dead ends: 11507 [2022-03-01 15:38:10,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=985, Invalid=3175, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:38:10,042 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1153 mSDsluCounter, 7410 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 7648 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:10,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 7648 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:10,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-03-01 15:38:10,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5483. [2022-03-01 15:38:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-03-01 15:38:10,120 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-03-01 15:38:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:10,120 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-03-01 15:38:10,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-03-01 15:38:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:10,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:10,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:10,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-01 15:38:10,126 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1092228517, now seen corresponding path program 129 times [2022-03-01 15:38:10,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:10,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983062600] [2022-03-01 15:38:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:10,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:10,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:10,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983062600] [2022-03-01 15:38:10,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983062600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:10,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:10,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:10,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802484507] [2022-03-01 15:38:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:10,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:10,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:10,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:10,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:10,508 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:12,783 INFO L93 Difference]: Finished difference Result 11704 states and 30776 transitions. [2022-03-01 15:38:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:12,798 INFO L225 Difference]: With dead ends: 11704 [2022-03-01 15:38:12,798 INFO L226 Difference]: Without dead ends: 11438 [2022-03-01 15:38:12,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:12,798 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1095 mSDsluCounter, 7317 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:12,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7566 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-03-01 15:38:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 5487. [2022-03-01 15:38:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-03-01 15:38:12,883 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-03-01 15:38:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:12,883 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-03-01 15:38:12,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-03-01 15:38:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:12,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:12,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:12,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-01 15:38:12,889 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1076619955, now seen corresponding path program 130 times [2022-03-01 15:38:12,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:12,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847745400] [2022-03-01 15:38:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:12,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:13,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:13,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847745400] [2022-03-01 15:38:13,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847745400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:13,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:13,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:13,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345378618] [2022-03-01 15:38:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:13,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:13,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:13,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:13,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:13,219 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:15,092 INFO L93 Difference]: Finished difference Result 11634 states and 30588 transitions. [2022-03-01 15:38:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:15,106 INFO L225 Difference]: With dead ends: 11634 [2022-03-01 15:38:15,106 INFO L226 Difference]: Without dead ends: 11347 [2022-03-01 15:38:15,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=825, Invalid=2715, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:15,107 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1089 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 7107 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:15,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 7107 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-03-01 15:38:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5463. [2022-03-01 15:38:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6343830098864887) internal successors, (14389), 5462 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14389 transitions. [2022-03-01 15:38:15,195 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14389 transitions. Word has length 135 [2022-03-01 15:38:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:15,195 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14389 transitions. [2022-03-01 15:38:15,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14389 transitions. [2022-03-01 15:38:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:15,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:15,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:15,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-01 15:38:15,201 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:15,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -614471499, now seen corresponding path program 131 times [2022-03-01 15:38:15,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:15,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571924898] [2022-03-01 15:38:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:15,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:15,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571924898] [2022-03-01 15:38:15,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571924898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:15,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:15,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:15,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077131271] [2022-03-01 15:38:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:15,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:15,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:15,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:15,464 INFO L87 Difference]: Start difference. First operand 5463 states and 14389 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:17,325 INFO L93 Difference]: Finished difference Result 11850 states and 31174 transitions. [2022-03-01 15:38:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:38:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:17,340 INFO L225 Difference]: With dead ends: 11850 [2022-03-01 15:38:17,341 INFO L226 Difference]: Without dead ends: 11559 [2022-03-01 15:38:17,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1003, Invalid=3157, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:38:17,341 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1176 mSDsluCounter, 6876 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:17,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 7144 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2022-03-01 15:38:17,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 5483. [2022-03-01 15:38:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-01 15:38:17,429 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-01 15:38:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:17,429 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-01 15:38:17,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-01 15:38:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:17,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:17,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:17,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-01 15:38:17,434 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:17,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -906177527, now seen corresponding path program 132 times [2022-03-01 15:38:17,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:17,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536440609] [2022-03-01 15:38:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:17,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:17,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536440609] [2022-03-01 15:38:17,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536440609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:17,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:17,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:17,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145853794] [2022-03-01 15:38:17,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:17,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:17,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:17,779 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:19,849 INFO L93 Difference]: Finished difference Result 11816 states and 31088 transitions. [2022-03-01 15:38:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:19,849 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:19,862 INFO L225 Difference]: With dead ends: 11816 [2022-03-01 15:38:19,862 INFO L226 Difference]: Without dead ends: 11550 [2022-03-01 15:38:19,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=816, Invalid=2724, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:19,863 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1132 mSDsluCounter, 6925 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7183 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:19,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7183 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2022-03-01 15:38:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 5487. [2022-03-01 15:38:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-03-01 15:38:19,950 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-03-01 15:38:19,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:19,951 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-03-01 15:38:19,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-03-01 15:38:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:19,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:19,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:19,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-01 15:38:19,956 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:19,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:19,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1219941297, now seen corresponding path program 133 times [2022-03-01 15:38:19,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:19,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559786493] [2022-03-01 15:38:19,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:19,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:20,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:20,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559786493] [2022-03-01 15:38:20,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559786493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:20,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:20,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:20,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757198189] [2022-03-01 15:38:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:20,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:20,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:20,340 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:22,427 INFO L93 Difference]: Finished difference Result 11778 states and 30988 transitions. [2022-03-01 15:38:22,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:22,427 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:22,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:22,442 INFO L225 Difference]: With dead ends: 11778 [2022-03-01 15:38:22,442 INFO L226 Difference]: Without dead ends: 11507 [2022-03-01 15:38:22,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=862, Invalid=2798, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:22,443 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1083 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:22,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 7514 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:22,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-03-01 15:38:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5479. [2022-03-01 15:38:22,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-03-01 15:38:22,526 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-03-01 15:38:22,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:22,526 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-03-01 15:38:22,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-03-01 15:38:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:22,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:22,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:22,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-01 15:38:22,532 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1592721463, now seen corresponding path program 134 times [2022-03-01 15:38:22,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:22,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473923541] [2022-03-01 15:38:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:22,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:22,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:22,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473923541] [2022-03-01 15:38:22,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473923541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:22,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:22,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:22,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705365295] [2022-03-01 15:38:22,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:22,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:22,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:22,903 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:25,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:25,188 INFO L93 Difference]: Finished difference Result 11948 states and 31426 transitions. [2022-03-01 15:38:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:38:25,188 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:25,202 INFO L225 Difference]: With dead ends: 11948 [2022-03-01 15:38:25,202 INFO L226 Difference]: Without dead ends: 11651 [2022-03-01 15:38:25,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:25,203 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1159 mSDsluCounter, 7434 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 7674 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:25,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 7674 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11651 states. [2022-03-01 15:38:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11651 to 5483. [2022-03-01 15:38:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-03-01 15:38:25,285 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-03-01 15:38:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:25,285 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-03-01 15:38:25,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-03-01 15:38:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:25,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:25,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:25,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-01 15:38:25,291 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash -823856317, now seen corresponding path program 135 times [2022-03-01 15:38:25,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:25,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814820480] [2022-03-01 15:38:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:25,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:25,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:25,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814820480] [2022-03-01 15:38:25,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814820480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:25,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:25,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:25,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467816726] [2022-03-01 15:38:25,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:25,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:25,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:25,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:25,546 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:27,389 INFO L93 Difference]: Finished difference Result 11832 states and 31128 transitions. [2022-03-01 15:38:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:27,389 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:27,404 INFO L225 Difference]: With dead ends: 11832 [2022-03-01 15:38:27,404 INFO L226 Difference]: Without dead ends: 11566 [2022-03-01 15:38:27,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=848, Invalid=2812, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:27,405 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1111 mSDsluCounter, 6212 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 6483 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:27,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 6483 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-03-01 15:38:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5487. [2022-03-01 15:38:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-03-01 15:38:27,492 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-03-01 15:38:27,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:27,492 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-03-01 15:38:27,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:27,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-03-01 15:38:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:27,498 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:27,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:27,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-01 15:38:27,498 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:27,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1302262507, now seen corresponding path program 136 times [2022-03-01 15:38:27,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:27,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755111200] [2022-03-01 15:38:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:27,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:27,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:27,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755111200] [2022-03-01 15:38:27,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755111200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:27,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:27,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:27,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138367993] [2022-03-01 15:38:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:27,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:27,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:27,881 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:30,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:30,106 INFO L93 Difference]: Finished difference Result 11778 states and 30984 transitions. [2022-03-01 15:38:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:30,107 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:30,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:30,122 INFO L225 Difference]: With dead ends: 11778 [2022-03-01 15:38:30,122 INFO L226 Difference]: Without dead ends: 11503 [2022-03-01 15:38:30,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=830, Invalid=2710, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:30,123 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1084 mSDsluCounter, 7229 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:30,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 7488 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:30,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-03-01 15:38:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5475. [2022-03-01 15:38:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6339057362075264) internal successors, (14418), 5474 states have internal predecessors, (14418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14418 transitions. [2022-03-01 15:38:30,213 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14418 transitions. Word has length 135 [2022-03-01 15:38:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:30,213 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14418 transitions. [2022-03-01 15:38:30,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14418 transitions. [2022-03-01 15:38:30,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:30,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:30,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:30,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-01 15:38:30,219 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash 682956455, now seen corresponding path program 137 times [2022-03-01 15:38:30,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:30,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322725046] [2022-03-01 15:38:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:30,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:30,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322725046] [2022-03-01 15:38:30,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322725046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:30,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:30,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:30,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788383797] [2022-03-01 15:38:30,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:30,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:30,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:30,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:30,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:30,630 INFO L87 Difference]: Start difference. First operand 5475 states and 14418 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:33,217 INFO L93 Difference]: Finished difference Result 11971 states and 31458 transitions. [2022-03-01 15:38:33,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:38:33,217 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:33,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:33,232 INFO L225 Difference]: With dead ends: 11971 [2022-03-01 15:38:33,232 INFO L226 Difference]: Without dead ends: 11581 [2022-03-01 15:38:33,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1190, Invalid=3780, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 15:38:33,233 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1235 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 7366 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:33,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 7366 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2022-03-01 15:38:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 5487. [2022-03-01 15:38:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.631972293109734) internal successors, (14439), 5486 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14439 transitions. [2022-03-01 15:38:33,343 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14439 transitions. Word has length 135 [2022-03-01 15:38:33,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:33,344 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14439 transitions. [2022-03-01 15:38:33,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14439 transitions. [2022-03-01 15:38:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:33,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:33,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:33,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-01 15:38:33,350 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:33,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:33,350 INFO L85 PathProgramCache]: Analyzing trace with hash 289491419, now seen corresponding path program 138 times [2022-03-01 15:38:33,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:33,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242156046] [2022-03-01 15:38:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:33,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:33,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242156046] [2022-03-01 15:38:33,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242156046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:33,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:33,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:33,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678687482] [2022-03-01 15:38:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:33,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:33,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:33,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:33,648 INFO L87 Difference]: Start difference. First operand 5487 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:35,770 INFO L93 Difference]: Finished difference Result 11828 states and 31084 transitions. [2022-03-01 15:38:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:38:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:35,786 INFO L225 Difference]: With dead ends: 11828 [2022-03-01 15:38:35,786 INFO L226 Difference]: Without dead ends: 11531 [2022-03-01 15:38:35,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:38:35,787 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1175 mSDsluCounter, 7431 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 7672 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:35,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 7672 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11531 states. [2022-03-01 15:38:35,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11531 to 5491. [2022-03-01 15:38:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.631329690346084) internal successors, (14446), 5490 states have internal predecessors, (14446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14446 transitions. [2022-03-01 15:38:35,878 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14446 transitions. Word has length 135 [2022-03-01 15:38:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:35,878 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14446 transitions. [2022-03-01 15:38:35,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14446 transitions. [2022-03-01 15:38:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:35,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:35,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:35,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-01 15:38:35,884 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2127086361, now seen corresponding path program 139 times [2022-03-01 15:38:35,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:35,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236780437] [2022-03-01 15:38:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:35,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:36,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:36,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236780437] [2022-03-01 15:38:36,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236780437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:36,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:36,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:36,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862129779] [2022-03-01 15:38:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:36,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:36,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:36,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:36,259 INFO L87 Difference]: Start difference. First operand 5491 states and 14446 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:38,022 INFO L93 Difference]: Finished difference Result 11728 states and 30830 transitions. [2022-03-01 15:38:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:38,022 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:38,035 INFO L225 Difference]: With dead ends: 11728 [2022-03-01 15:38:38,035 INFO L226 Difference]: Without dead ends: 11462 [2022-03-01 15:38:38,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:38,035 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1109 mSDsluCounter, 7295 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 7542 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:38,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 7542 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-01 15:38:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5495. [2022-03-01 15:38:38,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6306880232981436) internal successors, (14453), 5494 states have internal predecessors, (14453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14453 transitions. [2022-03-01 15:38:38,118 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14453 transitions. Word has length 135 [2022-03-01 15:38:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:38,118 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14453 transitions. [2022-03-01 15:38:38,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14453 transitions. [2022-03-01 15:38:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:38,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:38,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:38,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-01 15:38:38,123 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash -967537, now seen corresponding path program 140 times [2022-03-01 15:38:38,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:38,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104046280] [2022-03-01 15:38:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:38,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:38,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104046280] [2022-03-01 15:38:38,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104046280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:38,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:38,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:38,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775416011] [2022-03-01 15:38:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:38,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:38,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:38,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:38,507 INFO L87 Difference]: Start difference. First operand 5495 states and 14453 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:40,108 INFO L93 Difference]: Finished difference Result 11642 states and 30598 transitions. [2022-03-01 15:38:40,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:38:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:40,124 INFO L225 Difference]: With dead ends: 11642 [2022-03-01 15:38:40,124 INFO L226 Difference]: Without dead ends: 11311 [2022-03-01 15:38:40,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=802, Invalid=2620, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:38:40,124 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1106 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:40,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 7074 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-03-01 15:38:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 5427. [2022-03-01 15:38:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.633615923332105) internal successors, (14290), 5426 states have internal predecessors, (14290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14290 transitions. [2022-03-01 15:38:40,220 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14290 transitions. Word has length 135 [2022-03-01 15:38:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:40,220 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14290 transitions. [2022-03-01 15:38:40,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14290 transitions. [2022-03-01 15:38:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:40,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:40,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:40,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-01 15:38:40,228 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:40,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash -501888233, now seen corresponding path program 141 times [2022-03-01 15:38:40,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:40,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355743249] [2022-03-01 15:38:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:40,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:40,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:40,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355743249] [2022-03-01 15:38:40,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355743249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:40,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:40,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:40,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766041867] [2022-03-01 15:38:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:40,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:40,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:40,504 INFO L87 Difference]: Start difference. First operand 5427 states and 14290 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:42,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:42,749 INFO L93 Difference]: Finished difference Result 11834 states and 31130 transitions. [2022-03-01 15:38:42,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:38:42,750 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:42,761 INFO L225 Difference]: With dead ends: 11834 [2022-03-01 15:38:42,762 INFO L226 Difference]: Without dead ends: 11543 [2022-03-01 15:38:42,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=981, Invalid=3051, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:38:42,762 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1164 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 7142 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:42,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 7142 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2022-03-01 15:38:42,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 5451. [2022-03-01 15:38:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.633394495412844) internal successors, (14352), 5450 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14352 transitions. [2022-03-01 15:38:42,838 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14352 transitions. Word has length 135 [2022-03-01 15:38:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:42,839 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14352 transitions. [2022-03-01 15:38:42,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14352 transitions. [2022-03-01 15:38:42,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:42,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:42,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:42,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-01 15:38:42,845 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:42,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash -793594261, now seen corresponding path program 142 times [2022-03-01 15:38:42,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:42,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705975227] [2022-03-01 15:38:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:42,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:43,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:43,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705975227] [2022-03-01 15:38:43,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705975227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:43,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:43,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:43,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590753515] [2022-03-01 15:38:43,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:43,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:43,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:43,150 INFO L87 Difference]: Start difference. First operand 5451 states and 14352 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:45,229 INFO L93 Difference]: Finished difference Result 11848 states and 31160 transitions. [2022-03-01 15:38:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:45,229 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:45,244 INFO L225 Difference]: With dead ends: 11848 [2022-03-01 15:38:45,244 INFO L226 Difference]: Without dead ends: 11582 [2022-03-01 15:38:45,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=811, Invalid=2729, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:45,245 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1110 mSDsluCounter, 6981 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:45,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 7238 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11582 states. [2022-03-01 15:38:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11582 to 5455. [2022-03-01 15:38:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632746607994133) internal successors, (14359), 5454 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14359 transitions. [2022-03-01 15:38:45,332 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14359 transitions. Word has length 135 [2022-03-01 15:38:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:45,332 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14359 transitions. [2022-03-01 15:38:45,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14359 transitions. [2022-03-01 15:38:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:45,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:45,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:45,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-01 15:38:45,338 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:45,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1332524563, now seen corresponding path program 143 times [2022-03-01 15:38:45,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:45,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880597441] [2022-03-01 15:38:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:45,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:45,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880597441] [2022-03-01 15:38:45,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880597441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:45,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:45,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:45,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984037428] [2022-03-01 15:38:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:45,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:45,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:45,720 INFO L87 Difference]: Start difference. First operand 5455 states and 14359 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:47,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:47,804 INFO L93 Difference]: Finished difference Result 11810 states and 31060 transitions. [2022-03-01 15:38:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:47,805 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:47,820 INFO L225 Difference]: With dead ends: 11810 [2022-03-01 15:38:47,821 INFO L226 Difference]: Without dead ends: 11539 [2022-03-01 15:38:47,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:47,821 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1101 mSDsluCounter, 6867 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:47,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 7136 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-01 15:38:47,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5447. [2022-03-01 15:38:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-03-01 15:38:47,922 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-03-01 15:38:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:47,922 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-03-01 15:38:47,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-03-01 15:38:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:47,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:47,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:47,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-01 15:38:47,928 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:47,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1705304729, now seen corresponding path program 144 times [2022-03-01 15:38:47,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:47,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669126112] [2022-03-01 15:38:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:48,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:48,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669126112] [2022-03-01 15:38:48,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669126112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:48,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:48,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:48,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030208267] [2022-03-01 15:38:48,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:48,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:48,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:48,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:48,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:48,195 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:50,157 INFO L93 Difference]: Finished difference Result 11980 states and 31498 transitions. [2022-03-01 15:38:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:38:50,158 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:50,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:50,174 INFO L225 Difference]: With dead ends: 11980 [2022-03-01 15:38:50,175 INFO L226 Difference]: Without dead ends: 11683 [2022-03-01 15:38:50,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=998, Invalid=3292, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:50,177 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1171 mSDsluCounter, 7059 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 7310 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:50,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 7310 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-03-01 15:38:50,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 5451. [2022-03-01 15:38:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-01 15:38:50,270 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-01 15:38:50,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:50,270 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-01 15:38:50,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-01 15:38:50,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:50,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:50,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:50,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-01 15:38:50,275 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -711273051, now seen corresponding path program 145 times [2022-03-01 15:38:50,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:50,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455952518] [2022-03-01 15:38:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:50,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:50,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455952518] [2022-03-01 15:38:50,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455952518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:50,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:50,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:50,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109637239] [2022-03-01 15:38:50,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:50,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:50,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:50,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:50,573 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:52,732 INFO L93 Difference]: Finished difference Result 11864 states and 31200 transitions. [2022-03-01 15:38:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:38:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:52,745 INFO L225 Difference]: With dead ends: 11864 [2022-03-01 15:38:52,745 INFO L226 Difference]: Without dead ends: 11598 [2022-03-01 15:38:52,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:38:52,745 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1111 mSDsluCounter, 7356 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 7607 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:52,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 7607 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:38:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2022-03-01 15:38:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 5455. [2022-03-01 15:38:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-01 15:38:52,820 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-01 15:38:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:52,820 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-01 15:38:52,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-01 15:38:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:52,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:52,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:52,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-01 15:38:52,825 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1414845773, now seen corresponding path program 146 times [2022-03-01 15:38:52,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:52,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080617035] [2022-03-01 15:38:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:53,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:53,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080617035] [2022-03-01 15:38:53,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080617035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:53,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:53,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:53,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762064888] [2022-03-01 15:38:53,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:53,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:53,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:53,209 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:54,934 INFO L93 Difference]: Finished difference Result 11810 states and 31056 transitions. [2022-03-01 15:38:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:38:54,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:54,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:54,950 INFO L225 Difference]: With dead ends: 11810 [2022-03-01 15:38:54,950 INFO L226 Difference]: Without dead ends: 11535 [2022-03-01 15:38:54,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=837, Invalid=2703, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:38:54,951 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1079 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:54,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 7508 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:38:54,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-03-01 15:38:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 5443. [2022-03-01 15:38:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.633223079750092) internal successors, (14330), 5442 states have internal predecessors, (14330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14330 transitions. [2022-03-01 15:38:55,048 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14330 transitions. Word has length 135 [2022-03-01 15:38:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:55,048 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14330 transitions. [2022-03-01 15:38:55,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14330 transitions. [2022-03-01 15:38:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:55,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:55,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:55,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-01 15:38:55,054 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 795539721, now seen corresponding path program 147 times [2022-03-01 15:38:55,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:55,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213508293] [2022-03-01 15:38:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:55,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:55,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213508293] [2022-03-01 15:38:55,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213508293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:55,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:55,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:55,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353148440] [2022-03-01 15:38:55,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:55,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:55,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:55,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:55,496 INFO L87 Difference]: Start difference. First operand 5443 states and 14330 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:58,514 INFO L93 Difference]: Finished difference Result 12147 states and 31926 transitions. [2022-03-01 15:38:58,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:38:58,514 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:38:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:58,527 INFO L225 Difference]: With dead ends: 12147 [2022-03-01 15:38:58,528 INFO L226 Difference]: Without dead ends: 11757 [2022-03-01 15:38:58,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1208, Invalid=3904, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:38:58,528 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1264 mSDsluCounter, 7173 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 7419 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:58,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 7419 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:38:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-03-01 15:38:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 5455. [2022-03-01 15:38:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6312797946461313) internal successors, (14351), 5454 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14351 transitions. [2022-03-01 15:38:58,615 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14351 transitions. Word has length 135 [2022-03-01 15:38:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:58,615 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14351 transitions. [2022-03-01 15:38:58,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14351 transitions. [2022-03-01 15:38:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:38:58,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:58,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:58,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-01 15:38:58,621 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash 402074685, now seen corresponding path program 148 times [2022-03-01 15:38:58,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:58,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100267214] [2022-03-01 15:38:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:58,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:58,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100267214] [2022-03-01 15:38:58,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100267214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:58,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:58,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:38:58,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869992582] [2022-03-01 15:38:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:58,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:38:58,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:38:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:38:58,914 INFO L87 Difference]: Start difference. First operand 5455 states and 14351 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:01,243 INFO L93 Difference]: Finished difference Result 11996 states and 31530 transitions. [2022-03-01 15:39:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:01,244 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:01,261 INFO L225 Difference]: With dead ends: 11996 [2022-03-01 15:39:01,261 INFO L226 Difference]: Without dead ends: 11699 [2022-03-01 15:39:01,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1024, Invalid=3398, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:39:01,262 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1171 mSDsluCounter, 6692 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 6953 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:01,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 6953 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2022-03-01 15:39:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 5459. [2022-03-01 15:39:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.630633931843166) internal successors, (14358), 5458 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14358 transitions. [2022-03-01 15:39:01,434 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14358 transitions. Word has length 135 [2022-03-01 15:39:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:01,434 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14358 transitions. [2022-03-01 15:39:01,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14358 transitions. [2022-03-01 15:39:01,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:01,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:01,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:01,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-01 15:39:01,441 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:01,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2014503095, now seen corresponding path program 149 times [2022-03-01 15:39:01,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:01,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185585152] [2022-03-01 15:39:01,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:01,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:01,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:01,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:01,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185585152] [2022-03-01 15:39:01,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185585152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:01,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:01,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:01,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703840533] [2022-03-01 15:39:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:01,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:01,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:01,739 INFO L87 Difference]: Start difference. First operand 5459 states and 14358 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:03,818 INFO L93 Difference]: Finished difference Result 11880 states and 31232 transitions. [2022-03-01 15:39:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:03,818 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:03,834 INFO L225 Difference]: With dead ends: 11880 [2022-03-01 15:39:03,834 INFO L226 Difference]: Without dead ends: 11614 [2022-03-01 15:39:03,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=838, Invalid=2822, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:03,835 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1113 mSDsluCounter, 6574 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 6839 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:03,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 6839 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:03,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2022-03-01 15:39:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 5463. [2022-03-01 15:39:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.629989015012816) internal successors, (14365), 5462 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14365 transitions. [2022-03-01 15:39:03,928 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14365 transitions. Word has length 135 [2022-03-01 15:39:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:03,928 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14365 transitions. [2022-03-01 15:39:03,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14365 transitions. [2022-03-01 15:39:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:03,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:03,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:03,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-01 15:39:03,934 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:03,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash 111615729, now seen corresponding path program 150 times [2022-03-01 15:39:03,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:03,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271555779] [2022-03-01 15:39:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:04,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:04,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271555779] [2022-03-01 15:39:04,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271555779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:04,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:04,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:04,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675649960] [2022-03-01 15:39:04,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:04,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:04,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:04,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:04,215 INFO L87 Difference]: Start difference. First operand 5463 states and 14365 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:06,194 INFO L93 Difference]: Finished difference Result 11818 states and 31066 transitions. [2022-03-01 15:39:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:39:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:06,210 INFO L225 Difference]: With dead ends: 11818 [2022-03-01 15:39:06,211 INFO L226 Difference]: Without dead ends: 11523 [2022-03-01 15:39:06,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=807, Invalid=2615, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:39:06,211 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1103 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 7096 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:06,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 7096 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:39:06,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2022-03-01 15:39:06,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 5431. [2022-03-01 15:39:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 2.632965009208103) internal successors, (14297), 5430 states have internal predecessors, (14297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 14297 transitions. [2022-03-01 15:39:06,364 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 14297 transitions. Word has length 135 [2022-03-01 15:39:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:06,364 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 14297 transitions. [2022-03-01 15:39:06,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 14297 transitions. [2022-03-01 15:39:06,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:06,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:06,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:06,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-01 15:39:06,370 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:06,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220151, now seen corresponding path program 151 times [2022-03-01 15:39:06,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:06,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969958689] [2022-03-01 15:39:06,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:06,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:06,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:06,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969958689] [2022-03-01 15:39:06,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969958689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:06,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:06,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:06,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686579481] [2022-03-01 15:39:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:06,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:06,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:06,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:06,709 INFO L87 Difference]: Start difference. First operand 5431 states and 14297 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:09,516 INFO L93 Difference]: Finished difference Result 12181 states and 31920 transitions. [2022-03-01 15:39:09,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:39:09,516 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:09,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:09,535 INFO L225 Difference]: With dead ends: 12181 [2022-03-01 15:39:09,535 INFO L226 Difference]: Without dead ends: 11760 [2022-03-01 15:39:09,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1394, Invalid=4306, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:39:09,536 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1527 mSDsluCounter, 6486 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 6747 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:09,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 6747 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11760 states. [2022-03-01 15:39:09,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11760 to 5435. [2022-03-01 15:39:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.632315053367685) internal successors, (14304), 5434 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:09,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14304 transitions. [2022-03-01 15:39:09,634 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14304 transitions. Word has length 135 [2022-03-01 15:39:09,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:09,634 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14304 transitions. [2022-03-01 15:39:09,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:09,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14304 transitions. [2022-03-01 15:39:09,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:09,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:09,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:09,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-01 15:39:09,641 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:09,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1602527007, now seen corresponding path program 152 times [2022-03-01 15:39:09,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:09,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953617772] [2022-03-01 15:39:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:10,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:10,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953617772] [2022-03-01 15:39:10,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953617772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:10,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:10,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:10,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83304756] [2022-03-01 15:39:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:10,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:10,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:10,024 INFO L87 Difference]: Start difference. First operand 5435 states and 14304 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:12,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:12,885 INFO L93 Difference]: Finished difference Result 11979 states and 31460 transitions. [2022-03-01 15:39:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:39:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:12,899 INFO L225 Difference]: With dead ends: 11979 [2022-03-01 15:39:12,899 INFO L226 Difference]: Without dead ends: 11589 [2022-03-01 15:39:12,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1226, Invalid=4030, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:39:12,900 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1255 mSDsluCounter, 7189 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:12,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 7436 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:39:12,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2022-03-01 15:39:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 5447. [2022-03-01 15:39:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.630370914432611) internal successors, (14325), 5446 states have internal predecessors, (14325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14325 transitions. [2022-03-01 15:39:12,983 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14325 transitions. Word has length 135 [2022-03-01 15:39:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:12,983 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14325 transitions. [2022-03-01 15:39:12,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14325 transitions. [2022-03-01 15:39:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:12,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:12,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:12,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-01 15:39:12,989 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:12,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1547344085, now seen corresponding path program 153 times [2022-03-01 15:39:12,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:12,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345558970] [2022-03-01 15:39:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:12,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:13,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:13,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345558970] [2022-03-01 15:39:13,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345558970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:13,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:13,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:13,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739186341] [2022-03-01 15:39:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:13,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:13,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:13,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:13,335 INFO L87 Difference]: Start difference. First operand 5447 states and 14325 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:15,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:15,707 INFO L93 Difference]: Finished difference Result 11836 states and 31086 transitions. [2022-03-01 15:39:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:15,708 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:15,725 INFO L225 Difference]: With dead ends: 11836 [2022-03-01 15:39:15,725 INFO L226 Difference]: Without dead ends: 11539 [2022-03-01 15:39:15,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1014, Invalid=3408, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:39:15,726 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1186 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 6940 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:15,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 6940 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-01 15:39:15,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5451. [2022-03-01 15:39:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.629724770642202) internal successors, (14332), 5450 states have internal predecessors, (14332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14332 transitions. [2022-03-01 15:39:15,823 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14332 transitions. Word has length 135 [2022-03-01 15:39:15,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:15,823 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14332 transitions. [2022-03-01 15:39:15,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14332 transitions. [2022-03-01 15:39:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:15,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:15,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:15,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-01 15:39:15,829 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:15,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -869233695, now seen corresponding path program 154 times [2022-03-01 15:39:15,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:15,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998470752] [2022-03-01 15:39:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:16,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:16,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998470752] [2022-03-01 15:39:16,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998470752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:16,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:16,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:16,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472443512] [2022-03-01 15:39:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:16,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:16,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:16,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:16,187 INFO L87 Difference]: Start difference. First operand 5451 states and 14332 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:18,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:18,169 INFO L93 Difference]: Finished difference Result 11736 states and 30832 transitions. [2022-03-01 15:39:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:18,184 INFO L225 Difference]: With dead ends: 11736 [2022-03-01 15:39:18,184 INFO L226 Difference]: Without dead ends: 11470 [2022-03-01 15:39:18,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:18,184 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1128 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:18,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 7182 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:39:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11470 states. [2022-03-01 15:39:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11470 to 5455. [2022-03-01 15:39:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.629079574624129) internal successors, (14339), 5454 states have internal predecessors, (14339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14339 transitions. [2022-03-01 15:39:18,272 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14339 transitions. Word has length 135 [2022-03-01 15:39:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:18,272 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14339 transitions. [2022-03-01 15:39:18,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:18,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14339 transitions. [2022-03-01 15:39:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:18,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:18,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:18,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-01 15:39:18,277 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:18,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:18,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1256885129, now seen corresponding path program 155 times [2022-03-01 15:39:18,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:18,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336364365] [2022-03-01 15:39:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:18,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:18,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336364365] [2022-03-01 15:39:18,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336364365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:18,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:18,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:18,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360358993] [2022-03-01 15:39:18,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:18,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:18,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:18,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:18,714 INFO L87 Difference]: Start difference. First operand 5455 states and 14339 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:20,761 INFO L93 Difference]: Finished difference Result 11602 states and 30484 transitions. [2022-03-01 15:39:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:39:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:20,779 INFO L225 Difference]: With dead ends: 11602 [2022-03-01 15:39:20,779 INFO L226 Difference]: Without dead ends: 11299 [2022-03-01 15:39:20,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:39:20,780 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1091 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:20,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 7436 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2022-03-01 15:39:20,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5415. [2022-03-01 15:39:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.6333579608422606) internal successors, (14257), 5414 states have internal predecessors, (14257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14257 transitions. [2022-03-01 15:39:20,900 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14257 transitions. Word has length 135 [2022-03-01 15:39:20,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:20,901 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14257 transitions. [2022-03-01 15:39:20,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14257 transitions. [2022-03-01 15:39:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:20,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:20,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:20,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-01 15:39:20,909 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash 423770293, now seen corresponding path program 156 times [2022-03-01 15:39:20,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:20,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048854805] [2022-03-01 15:39:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:20,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:21,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:21,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048854805] [2022-03-01 15:39:21,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048854805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:21,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:21,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:21,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107293114] [2022-03-01 15:39:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:21,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:21,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:21,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:21,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:21,206 INFO L87 Difference]: Start difference. First operand 5415 states and 14257 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:23,449 INFO L93 Difference]: Finished difference Result 11510 states and 30263 transitions. [2022-03-01 15:39:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:39:23,449 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:23,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:23,463 INFO L225 Difference]: With dead ends: 11510 [2022-03-01 15:39:23,463 INFO L226 Difference]: Without dead ends: 11219 [2022-03-01 15:39:23,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=979, Invalid=3053, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:39:23,463 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1142 mSDsluCounter, 7365 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7631 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:23,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 7631 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:39:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-03-01 15:39:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 5491. [2022-03-01 15:39:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:23,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-03-01 15:39:23,549 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-03-01 15:39:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:23,549 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-03-01 15:39:23,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-03-01 15:39:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:23,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:23,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:23,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-01 15:39:23,555 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash 132064265, now seen corresponding path program 157 times [2022-03-01 15:39:23,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:23,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192854613] [2022-03-01 15:39:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:23,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:23,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192854613] [2022-03-01 15:39:23,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192854613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:23,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:23,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:23,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401354965] [2022-03-01 15:39:23,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:23,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:23,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:23,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:23,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:23,849 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:25,696 INFO L93 Difference]: Finished difference Result 11524 states and 30293 transitions. [2022-03-01 15:39:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:39:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:25,712 INFO L225 Difference]: With dead ends: 11524 [2022-03-01 15:39:25,712 INFO L226 Difference]: Without dead ends: 11258 [2022-03-01 15:39:25,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=805, Invalid=2735, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:39:25,713 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1136 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:25,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 7315 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-01 15:39:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 5495. [2022-03-01 15:39:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-03-01 15:39:25,812 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-03-01 15:39:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:25,812 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-03-01 15:39:25,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-03-01 15:39:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:25,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:25,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:25,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-01 15:39:25,818 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2036784207, now seen corresponding path program 158 times [2022-03-01 15:39:25,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:25,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119694318] [2022-03-01 15:39:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:25,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:26,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:26,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119694318] [2022-03-01 15:39:26,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119694318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:26,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:26,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:26,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442840617] [2022-03-01 15:39:26,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:26,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:26,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:26,132 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:28,240 INFO L93 Difference]: Finished difference Result 11486 states and 30193 transitions. [2022-03-01 15:39:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:28,241 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:28,256 INFO L225 Difference]: With dead ends: 11486 [2022-03-01 15:39:28,257 INFO L226 Difference]: Without dead ends: 11215 [2022-03-01 15:39:28,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:28,257 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1103 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 6866 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:28,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 6866 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11215 states. [2022-03-01 15:39:28,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11215 to 5487. [2022-03-01 15:39:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-03-01 15:39:28,360 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-03-01 15:39:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:28,360 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-03-01 15:39:28,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-03-01 15:39:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:28,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:28,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:28,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-01 15:39:28,366 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1664004041, now seen corresponding path program 159 times [2022-03-01 15:39:28,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:28,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166345939] [2022-03-01 15:39:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:28,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:28,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166345939] [2022-03-01 15:39:28,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166345939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:28,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:28,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:28,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463678891] [2022-03-01 15:39:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:28,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:28,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:28,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:28,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:28,759 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:30,799 INFO L93 Difference]: Finished difference Result 11656 states and 30631 transitions. [2022-03-01 15:39:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:39:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:30,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:30,815 INFO L225 Difference]: With dead ends: 11656 [2022-03-01 15:39:30,815 INFO L226 Difference]: Without dead ends: 11359 [2022-03-01 15:39:30,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:39:30,816 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1182 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 7032 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:30,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 7032 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-01 15:39:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5491. [2022-03-01 15:39:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6335154826958105) internal successors, (14458), 5490 states have internal predecessors, (14458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14458 transitions. [2022-03-01 15:39:30,913 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14458 transitions. Word has length 135 [2022-03-01 15:39:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:30,913 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14458 transitions. [2022-03-01 15:39:30,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14458 transitions. [2022-03-01 15:39:30,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:30,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:30,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:30,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-01 15:39:30,919 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash 214385475, now seen corresponding path program 160 times [2022-03-01 15:39:30,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:30,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136635350] [2022-03-01 15:39:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:31,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:31,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136635350] [2022-03-01 15:39:31,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136635350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:31,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:31,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:31,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363787603] [2022-03-01 15:39:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:31,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:31,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:31,426 INFO L87 Difference]: Start difference. First operand 5491 states and 14458 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:33,427 INFO L93 Difference]: Finished difference Result 11540 states and 30333 transitions. [2022-03-01 15:39:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:33,444 INFO L225 Difference]: With dead ends: 11540 [2022-03-01 15:39:33,444 INFO L226 Difference]: Without dead ends: 11274 [2022-03-01 15:39:33,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=834, Invalid=2826, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:33,445 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1119 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 7714 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:33,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 7714 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2022-03-01 15:39:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 5495. [2022-03-01 15:39:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6328722242446303) internal successors, (14465), 5494 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14465 transitions. [2022-03-01 15:39:33,558 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14465 transitions. Word has length 135 [2022-03-01 15:39:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:33,558 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14465 transitions. [2022-03-01 15:39:33,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14465 transitions. [2022-03-01 15:39:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:33,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:33,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:33,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-01 15:39:33,567 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:33,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1954462997, now seen corresponding path program 161 times [2022-03-01 15:39:33,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:33,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381936636] [2022-03-01 15:39:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:34,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:34,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381936636] [2022-03-01 15:39:34,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381936636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:34,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:34,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:34,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447878218] [2022-03-01 15:39:34,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:34,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:34,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:34,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:34,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:34,005 INFO L87 Difference]: Start difference. First operand 5495 states and 14465 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:35,983 INFO L93 Difference]: Finished difference Result 11486 states and 30189 transitions. [2022-03-01 15:39:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:39:35,983 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:35,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:36,003 INFO L225 Difference]: With dead ends: 11486 [2022-03-01 15:39:36,003 INFO L226 Difference]: Without dead ends: 11211 [2022-03-01 15:39:36,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:39:36,004 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1114 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 7211 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:36,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 7211 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:36,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-03-01 15:39:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5483. [2022-03-01 15:39:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-01 15:39:36,104 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-01 15:39:36,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:36,104 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-01 15:39:36,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:36,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-01 15:39:36,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:36,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:36,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:36,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-01 15:39:36,111 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:36,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:36,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1721198247, now seen corresponding path program 162 times [2022-03-01 15:39:36,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:36,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623796363] [2022-03-01 15:39:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:36,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:36,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:36,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623796363] [2022-03-01 15:39:36,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623796363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:36,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:36,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:36,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018123499] [2022-03-01 15:39:36,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:36,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:36,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:36,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:36,555 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:39,003 INFO L93 Difference]: Finished difference Result 11823 states and 31059 transitions. [2022-03-01 15:39:39,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:39:39,004 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:39,020 INFO L225 Difference]: With dead ends: 11823 [2022-03-01 15:39:39,020 INFO L226 Difference]: Without dead ends: 11433 [2022-03-01 15:39:39,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1196, Invalid=3916, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:39:39,021 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1251 mSDsluCounter, 6501 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:39,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 6770 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:39,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2022-03-01 15:39:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5495. [2022-03-01 15:39:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.632144157262468) internal successors, (14461), 5494 states have internal predecessors, (14461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14461 transitions. [2022-03-01 15:39:39,118 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14461 transitions. Word has length 135 [2022-03-01 15:39:39,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:39,118 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14461 transitions. [2022-03-01 15:39:39,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14461 transitions. [2022-03-01 15:39:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:39,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:39,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:39,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-01 15:39:39,124 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:39,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1327733211, now seen corresponding path program 163 times [2022-03-01 15:39:39,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:39,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323375670] [2022-03-01 15:39:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:39,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:39,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323375670] [2022-03-01 15:39:39,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323375670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:39,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:39,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:39,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768249700] [2022-03-01 15:39:39,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:39,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:39,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:39,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:39,530 INFO L87 Difference]: Start difference. First operand 5495 states and 14461 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:41,835 INFO L93 Difference]: Finished difference Result 11672 states and 30663 transitions. [2022-03-01 15:39:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:41,835 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:41,847 INFO L225 Difference]: With dead ends: 11672 [2022-03-01 15:39:41,847 INFO L226 Difference]: Without dead ends: 11375 [2022-03-01 15:39:41,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:39:41,848 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1176 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:41,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 7429 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:39:41,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2022-03-01 15:39:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 5499. [2022-03-01 15:39:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6315023644961806) internal successors, (14468), 5498 states have internal predecessors, (14468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:41,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14468 transitions. [2022-03-01 15:39:41,922 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14468 transitions. Word has length 135 [2022-03-01 15:39:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:41,922 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 14468 transitions. [2022-03-01 15:39:41,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14468 transitions. [2022-03-01 15:39:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:41,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:41,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:41,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-01 15:39:41,928 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1088844569, now seen corresponding path program 164 times [2022-03-01 15:39:41,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:41,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977867587] [2022-03-01 15:39:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:41,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:42,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:42,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977867587] [2022-03-01 15:39:42,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977867587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:42,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:42,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:42,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58055682] [2022-03-01 15:39:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:42,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:42,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:42,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:42,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:42,223 INFO L87 Difference]: Start difference. First operand 5499 states and 14468 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:44,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:44,277 INFO L93 Difference]: Finished difference Result 11556 states and 30365 transitions. [2022-03-01 15:39:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:44,294 INFO L225 Difference]: With dead ends: 11556 [2022-03-01 15:39:44,294 INFO L226 Difference]: Without dead ends: 11290 [2022-03-01 15:39:44,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=830, Invalid=2830, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:44,295 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1130 mSDsluCounter, 7040 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7305 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:44,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7305 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:39:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2022-03-01 15:39:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5503. [2022-03-01 15:39:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 2.6308615049073065) internal successors, (14475), 5502 states have internal predecessors, (14475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 14475 transitions. [2022-03-01 15:39:44,392 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 14475 transitions. Word has length 135 [2022-03-01 15:39:44,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:44,393 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 14475 transitions. [2022-03-01 15:39:44,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 14475 transitions. [2022-03-01 15:39:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:44,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:44,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:44,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-01 15:39:44,399 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:44,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1037274255, now seen corresponding path program 165 times [2022-03-01 15:39:44,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:44,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498583019] [2022-03-01 15:39:44,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:44,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:44,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:44,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498583019] [2022-03-01 15:39:44,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498583019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:44,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:44,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:44,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939776002] [2022-03-01 15:39:44,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:44,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:44,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:44,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:44,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:44,780 INFO L87 Difference]: Start difference. First operand 5503 states and 14475 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:46,886 INFO L93 Difference]: Finished difference Result 11494 states and 30199 transitions. [2022-03-01 15:39:46,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:39:46,886 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:46,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:46,898 INFO L225 Difference]: With dead ends: 11494 [2022-03-01 15:39:46,898 INFO L226 Difference]: Without dead ends: 11199 [2022-03-01 15:39:46,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:39:46,899 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1087 mSDsluCounter, 7323 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 7586 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:46,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 7586 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2022-03-01 15:39:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 5471. [2022-03-01 15:39:46,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.63382084095064) internal successors, (14407), 5470 states have internal predecessors, (14407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14407 transitions. [2022-03-01 15:39:46,976 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14407 transitions. Word has length 135 [2022-03-01 15:39:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:46,977 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14407 transitions. [2022-03-01 15:39:46,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14407 transitions. [2022-03-01 15:39:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:46,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:46,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:46,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-01 15:39:46,983 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:46,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:46,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1774088619, now seen corresponding path program 166 times [2022-03-01 15:39:46,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:46,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485031432] [2022-03-01 15:39:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:46,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:47,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:47,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485031432] [2022-03-01 15:39:47,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485031432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:47,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:47,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:47,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190355707] [2022-03-01 15:39:47,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:47,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:47,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:47,317 INFO L87 Difference]: Start difference. First operand 5471 states and 14407 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:50,253 INFO L93 Difference]: Finished difference Result 12065 states and 31609 transitions. [2022-03-01 15:39:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:39:50,254 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:50,269 INFO L225 Difference]: With dead ends: 12065 [2022-03-01 15:39:50,269 INFO L226 Difference]: Without dead ends: 11644 [2022-03-01 15:39:50,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1378, Invalid=4322, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:39:50,270 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1493 mSDsluCounter, 7434 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 7682 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:50,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 7682 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2022-03-01 15:39:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 5475. [2022-03-01 15:39:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6331750091340886) internal successors, (14414), 5474 states have internal predecessors, (14414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14414 transitions. [2022-03-01 15:39:50,352 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14414 transitions. Word has length 135 [2022-03-01 15:39:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:50,352 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14414 transitions. [2022-03-01 15:39:50,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14414 transitions. [2022-03-01 15:39:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:50,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:50,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:50,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-01 15:39:50,358 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:50,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:50,358 INFO L85 PathProgramCache]: Analyzing trace with hash -676868481, now seen corresponding path program 167 times [2022-03-01 15:39:50,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:50,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580004091] [2022-03-01 15:39:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:50,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:50,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:50,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580004091] [2022-03-01 15:39:50,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580004091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:50,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:50,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:50,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705543152] [2022-03-01 15:39:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:50,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:50,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:50,602 INFO L87 Difference]: Start difference. First operand 5475 states and 14414 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:52,773 INFO L93 Difference]: Finished difference Result 11839 states and 31091 transitions. [2022-03-01 15:39:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:39:52,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:52,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:52,787 INFO L225 Difference]: With dead ends: 11839 [2022-03-01 15:39:52,787 INFO L226 Difference]: Without dead ends: 11449 [2022-03-01 15:39:52,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1214, Invalid=4042, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:39:52,788 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1246 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:52,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 7174 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:39:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-03-01 15:39:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 5487. [2022-03-01 15:39:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6312431644185197) internal successors, (14435), 5486 states have internal predecessors, (14435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14435 transitions. [2022-03-01 15:39:52,876 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14435 transitions. Word has length 135 [2022-03-01 15:39:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:52,877 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14435 transitions. [2022-03-01 15:39:52,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14435 transitions. [2022-03-01 15:39:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:52,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:52,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:52,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-01 15:39:52,883 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1821964685, now seen corresponding path program 168 times [2022-03-01 15:39:52,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:52,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141559304] [2022-03-01 15:39:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:53,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:53,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141559304] [2022-03-01 15:39:53,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141559304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:53,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:53,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:53,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675011584] [2022-03-01 15:39:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:53,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:53,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:53,238 INFO L87 Difference]: Start difference. First operand 5487 states and 14435 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:55,430 INFO L93 Difference]: Finished difference Result 11688 states and 30695 transitions. [2022-03-01 15:39:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:55,430 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:55,447 INFO L225 Difference]: With dead ends: 11688 [2022-03-01 15:39:55,447 INFO L226 Difference]: Without dead ends: 11391 [2022-03-01 15:39:55,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1002, Invalid=3420, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:39:55,448 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1164 mSDsluCounter, 7594 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:55,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 7842 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:55,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-03-01 15:39:55,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5491. [2022-03-01 15:39:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6306010928961747) internal successors, (14442), 5490 states have internal predecessors, (14442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14442 transitions. [2022-03-01 15:39:55,547 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14442 transitions. Word has length 135 [2022-03-01 15:39:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:55,547 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14442 transitions. [2022-03-01 15:39:55,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14442 transitions. [2022-03-01 15:39:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:55,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:55,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:55,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-01 15:39:55,553 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:55,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:55,553 INFO L85 PathProgramCache]: Analyzing trace with hash 56424831, now seen corresponding path program 169 times [2022-03-01 15:39:55,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:55,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282860330] [2022-03-01 15:39:55,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:55,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:55,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:55,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282860330] [2022-03-01 15:39:55,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282860330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:55,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:55,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:55,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481639818] [2022-03-01 15:39:55,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:55,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:55,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:55,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:55,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:55,971 INFO L87 Difference]: Start difference. First operand 5491 states and 14442 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:58,093 INFO L93 Difference]: Finished difference Result 11572 states and 30397 transitions. [2022-03-01 15:39:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:39:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:39:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:58,109 INFO L225 Difference]: With dead ends: 11572 [2022-03-01 15:39:58,109 INFO L226 Difference]: Without dead ends: 11306 [2022-03-01 15:39:58,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:39:58,110 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1137 mSDsluCounter, 7051 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 7314 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:58,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 7314 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:39:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11306 states. [2022-03-01 15:39:58,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 5495. [2022-03-01 15:39:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.629959956315981) internal successors, (14449), 5494 states have internal predecessors, (14449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14449 transitions. [2022-03-01 15:39:58,204 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14449 transitions. Word has length 135 [2022-03-01 15:39:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:58,204 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14449 transitions. [2022-03-01 15:39:58,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14449 transitions. [2022-03-01 15:39:58,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:39:58,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:58,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:58,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-01 15:39:58,210 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2112423641, now seen corresponding path program 170 times [2022-03-01 15:39:58,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:58,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638157888] [2022-03-01 15:39:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:58,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:58,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:58,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638157888] [2022-03-01 15:39:58,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638157888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:58,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:58,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:39:58,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73747895] [2022-03-01 15:39:58,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:58,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:39:58,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:58,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:39:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:39:58,539 INFO L87 Difference]: Start difference. First operand 5495 states and 14449 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:00,215 INFO L93 Difference]: Finished difference Result 11486 states and 30173 transitions. [2022-03-01 15:40:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:40:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:00,229 INFO L225 Difference]: With dead ends: 11486 [2022-03-01 15:40:00,229 INFO L226 Difference]: Without dead ends: 11195 [2022-03-01 15:40:00,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:40:00,230 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1097 mSDsluCounter, 6222 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 6501 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:00,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 6501 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11195 states. [2022-03-01 15:40:00,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11195 to 5467. [2022-03-01 15:40:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6337358214416393) internal successors, (14396), 5466 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14396 transitions. [2022-03-01 15:40:00,313 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14396 transitions. Word has length 135 [2022-03-01 15:40:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:00,314 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14396 transitions. [2022-03-01 15:40:00,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14396 transitions. [2022-03-01 15:40:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:00,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:00,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:00,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-01 15:40:00,319 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash -773333239, now seen corresponding path program 171 times [2022-03-01 15:40:00,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:00,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126341778] [2022-03-01 15:40:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:00,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:00,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:00,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126341778] [2022-03-01 15:40:00,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126341778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:00,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:00,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:00,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530459902] [2022-03-01 15:40:00,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:00,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:00,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:00,686 INFO L87 Difference]: Start difference. First operand 5467 states and 14396 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:03,368 INFO L93 Difference]: Finished difference Result 11819 states and 30881 transitions. [2022-03-01 15:40:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:40:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:03,384 INFO L225 Difference]: With dead ends: 11819 [2022-03-01 15:40:03,385 INFO L226 Difference]: Without dead ends: 10995 [2022-03-01 15:40:03,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1534, Invalid=4628, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:40:03,386 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1626 mSDsluCounter, 7665 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 7937 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:03,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1626 Valid, 7937 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2022-03-01 15:40:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 5519. [2022-03-01 15:40:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5518 states have (on average 2.6254077564334906) internal successors, (14487), 5518 states have internal predecessors, (14487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 14487 transitions. [2022-03-01 15:40:03,496 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 14487 transitions. Word has length 135 [2022-03-01 15:40:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:03,496 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 14487 transitions. [2022-03-01 15:40:03,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:03,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 14487 transitions. [2022-03-01 15:40:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:03,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:03,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:03,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-01 15:40:03,503 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1008716417, now seen corresponding path program 172 times [2022-03-01 15:40:03,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:03,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566868544] [2022-03-01 15:40:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:03,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:03,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:03,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566868544] [2022-03-01 15:40:03,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566868544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:03,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:03,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:03,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317491627] [2022-03-01 15:40:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:03,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:03,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:03,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:03,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:03,802 INFO L87 Difference]: Start difference. First operand 5519 states and 14487 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:06,225 INFO L93 Difference]: Finished difference Result 11645 states and 30418 transitions. [2022-03-01 15:40:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:40:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:06,241 INFO L225 Difference]: With dead ends: 11645 [2022-03-01 15:40:06,241 INFO L226 Difference]: Without dead ends: 11224 [2022-03-01 15:40:06,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1360, Invalid=4340, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:40:06,243 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1533 mSDsluCounter, 7531 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:06,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 7791 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11224 states. [2022-03-01 15:40:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11224 to 5523. [2022-03-01 15:40:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 2.62477363274176) internal successors, (14494), 5522 states have internal predecessors, (14494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 14494 transitions. [2022-03-01 15:40:06,319 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 14494 transitions. Word has length 135 [2022-03-01 15:40:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:06,319 INFO L470 AbstractCegarLoop]: Abstraction has 5523 states and 14494 transitions. [2022-03-01 15:40:06,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 14494 transitions. [2022-03-01 15:40:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:06,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:06,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:06,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-01 15:40:06,324 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2105936555, now seen corresponding path program 173 times [2022-03-01 15:40:06,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:06,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882902707] [2022-03-01 15:40:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:06,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:06,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882902707] [2022-03-01 15:40:06,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882902707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:06,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:06,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:06,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206272601] [2022-03-01 15:40:06,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:06,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:06,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:06,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:06,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:06,613 INFO L87 Difference]: Start difference. First operand 5523 states and 14494 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:09,250 INFO L93 Difference]: Finished difference Result 11419 states and 29900 transitions. [2022-03-01 15:40:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:40:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:09,265 INFO L225 Difference]: With dead ends: 11419 [2022-03-01 15:40:09,265 INFO L226 Difference]: Without dead ends: 11029 [2022-03-01 15:40:09,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1198, Invalid=4058, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:40:09,266 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1241 mSDsluCounter, 7452 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 7717 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:09,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1241 Valid, 7717 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2022-03-01 15:40:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5535. [2022-03-01 15:40:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6228767618359234) internal successors, (14515), 5534 states have internal predecessors, (14515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14515 transitions. [2022-03-01 15:40:09,360 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14515 transitions. Word has length 135 [2022-03-01 15:40:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:09,361 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14515 transitions. [2022-03-01 15:40:09,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14515 transitions. [2022-03-01 15:40:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:09,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:09,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:09,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-01 15:40:09,367 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash 960840351, now seen corresponding path program 174 times [2022-03-01 15:40:09,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:09,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336586776] [2022-03-01 15:40:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:09,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:09,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:09,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336586776] [2022-03-01 15:40:09,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336586776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:09,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:09,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:09,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940850967] [2022-03-01 15:40:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:09,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:09,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:09,683 INFO L87 Difference]: Start difference. First operand 5535 states and 14515 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:12,008 INFO L93 Difference]: Finished difference Result 11268 states and 29504 transitions. [2022-03-01 15:40:12,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:40:12,008 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:12,023 INFO L225 Difference]: With dead ends: 11268 [2022-03-01 15:40:12,024 INFO L226 Difference]: Without dead ends: 10971 [2022-03-01 15:40:12,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=992, Invalid=3430, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:40:12,024 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1165 mSDsluCounter, 8160 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 8408 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:12,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1165 Valid, 8408 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:12,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2022-03-01 15:40:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5539. [2022-03-01 15:40:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5538 states have (on average 2.6222462983026364) internal successors, (14522), 5538 states have internal predecessors, (14522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:12,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 14522 transitions. [2022-03-01 15:40:12,117 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 14522 transitions. Word has length 135 [2022-03-01 15:40:12,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:12,117 INFO L470 AbstractCegarLoop]: Abstraction has 5539 states and 14522 transitions. [2022-03-01 15:40:12,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 14522 transitions. [2022-03-01 15:40:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:12,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:12,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:12,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-01 15:40:12,123 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:12,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1455737429, now seen corresponding path program 175 times [2022-03-01 15:40:12,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:12,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498725937] [2022-03-01 15:40:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:12,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:12,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498725937] [2022-03-01 15:40:12,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498725937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:12,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:12,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:12,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658237228] [2022-03-01 15:40:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:12,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:12,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:12,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:12,475 INFO L87 Difference]: Start difference. First operand 5539 states and 14522 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:14,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:14,685 INFO L93 Difference]: Finished difference Result 11152 states and 29206 transitions. [2022-03-01 15:40:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:40:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:14,701 INFO L225 Difference]: With dead ends: 11152 [2022-03-01 15:40:14,702 INFO L226 Difference]: Without dead ends: 10886 [2022-03-01 15:40:14,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=819, Invalid=2841, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:40:14,702 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1108 mSDsluCounter, 7603 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:14,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 7867 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-03-01 15:40:14,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 5543. [2022-03-01 15:40:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 5542 states have (on average 2.621616744857452) internal successors, (14529), 5542 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 14529 transitions. [2022-03-01 15:40:14,809 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 14529 transitions. Word has length 135 [2022-03-01 15:40:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:14,810 INFO L470 AbstractCegarLoop]: Abstraction has 5543 states and 14529 transitions. [2022-03-01 15:40:14,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 14529 transitions. [2022-03-01 15:40:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:14,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:14,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:14,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-01 15:40:14,816 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:14,817 INFO L85 PathProgramCache]: Analyzing trace with hash 670381395, now seen corresponding path program 176 times [2022-03-01 15:40:14,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:14,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594245178] [2022-03-01 15:40:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:14,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:15,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:15,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594245178] [2022-03-01 15:40:15,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594245178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:15,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:15,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:15,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124318018] [2022-03-01 15:40:15,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:15,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:15,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:15,280 INFO L87 Difference]: Start difference. First operand 5543 states and 14529 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:17,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:17,298 INFO L93 Difference]: Finished difference Result 11066 states and 28982 transitions. [2022-03-01 15:40:17,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:40:17,298 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:17,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:17,312 INFO L225 Difference]: With dead ends: 11066 [2022-03-01 15:40:17,312 INFO L226 Difference]: Without dead ends: 10519 [2022-03-01 15:40:17,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=777, Invalid=2529, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:40:17,313 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1095 mSDsluCounter, 7468 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7739 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:17,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7739 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-01 15:40:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5259. [2022-03-01 15:40:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6222898440471663) internal successors, (13788), 5258 states have internal predecessors, (13788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13788 transitions. [2022-03-01 15:40:17,402 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13788 transitions. Word has length 135 [2022-03-01 15:40:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13788 transitions. [2022-03-01 15:40:17,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13788 transitions. [2022-03-01 15:40:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:17,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:17,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:17,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-01 15:40:17,408 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1095253461, now seen corresponding path program 177 times [2022-03-01 15:40:17,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:17,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102379807] [2022-03-01 15:40:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:17,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:17,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:17,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102379807] [2022-03-01 15:40:17,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102379807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:17,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:17,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:17,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188492363] [2022-03-01 15:40:17,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:17,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:17,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:17,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:17,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:17,826 INFO L87 Difference]: Start difference. First operand 5259 states and 13788 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:20,709 INFO L93 Difference]: Finished difference Result 10666 states and 27918 transitions. [2022-03-01 15:40:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:40:20,709 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:20,720 INFO L225 Difference]: With dead ends: 10666 [2022-03-01 15:40:20,720 INFO L226 Difference]: Without dead ends: 10291 [2022-03-01 15:40:20,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1255, Invalid=4001, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:40:20,722 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1247 mSDsluCounter, 7531 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:20,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 7749 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:20,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-03-01 15:40:20,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5295. [2022-03-01 15:40:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6208915753683417) internal successors, (13875), 5294 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13875 transitions. [2022-03-01 15:40:20,789 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13875 transitions. Word has length 135 [2022-03-01 15:40:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:20,789 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13875 transitions. [2022-03-01 15:40:20,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13875 transitions. [2022-03-01 15:40:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:20,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:20,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:20,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-01 15:40:20,796 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 144449589, now seen corresponding path program 178 times [2022-03-01 15:40:20,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:20,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931149063] [2022-03-01 15:40:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:20,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:21,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:21,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931149063] [2022-03-01 15:40:21,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931149063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:21,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:21,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:21,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913755735] [2022-03-01 15:40:21,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:21,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:21,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:21,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:21,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:21,089 INFO L87 Difference]: Start difference. First operand 5295 states and 13875 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:22,995 INFO L93 Difference]: Finished difference Result 10526 states and 27541 transitions. [2022-03-01 15:40:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:40:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:23,009 INFO L225 Difference]: With dead ends: 10526 [2022-03-01 15:40:23,009 INFO L226 Difference]: Without dead ends: 10235 [2022-03-01 15:40:23,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1038, Invalid=3384, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:40:23,010 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1199 mSDsluCounter, 7040 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 7264 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:23,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 7264 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2022-03-01 15:40:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5299. [2022-03-01 15:40:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6202340505851263) internal successors, (13882), 5298 states have internal predecessors, (13882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13882 transitions. [2022-03-01 15:40:23,084 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13882 transitions. Word has length 135 [2022-03-01 15:40:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:23,085 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13882 transitions. [2022-03-01 15:40:23,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13882 transitions. [2022-03-01 15:40:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:23,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:23,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:23,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-01 15:40:23,090 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:23,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:23,090 INFO L85 PathProgramCache]: Analyzing trace with hash -147256439, now seen corresponding path program 179 times [2022-03-01 15:40:23,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:23,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469359962] [2022-03-01 15:40:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:23,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:23,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469359962] [2022-03-01 15:40:23,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469359962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:23,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:23,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:23,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425612315] [2022-03-01 15:40:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:23,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:23,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:23,455 INFO L87 Difference]: Start difference. First operand 5299 states and 13882 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:25,292 INFO L93 Difference]: Finished difference Result 10388 states and 27169 transitions. [2022-03-01 15:40:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:40:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:25,304 INFO L225 Difference]: With dead ends: 10388 [2022-03-01 15:40:25,304 INFO L226 Difference]: Without dead ends: 10122 [2022-03-01 15:40:25,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=799, Invalid=2507, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:40:25,305 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1134 mSDsluCounter, 7285 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7487 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:25,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 7487 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2022-03-01 15:40:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5303. [2022-03-01 15:40:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.619577517917767) internal successors, (13889), 5302 states have internal predecessors, (13889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13889 transitions. [2022-03-01 15:40:25,378 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13889 transitions. Word has length 135 [2022-03-01 15:40:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:25,379 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13889 transitions. [2022-03-01 15:40:25,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13889 transitions. [2022-03-01 15:40:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:25,384 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:25,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:25,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-01 15:40:25,384 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1978862385, now seen corresponding path program 180 times [2022-03-01 15:40:25,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:25,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245462160] [2022-03-01 15:40:25,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:25,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:25,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:25,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245462160] [2022-03-01 15:40:25,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245462160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:25,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:25,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:25,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688523637] [2022-03-01 15:40:25,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:25,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:25,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:25,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:25,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:25,654 INFO L87 Difference]: Start difference. First operand 5303 states and 13889 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:27,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:27,314 INFO L93 Difference]: Finished difference Result 10370 states and 27124 transitions. [2022-03-01 15:40:27,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:40:27,314 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:27,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:27,328 INFO L225 Difference]: With dead ends: 10370 [2022-03-01 15:40:27,328 INFO L226 Difference]: Without dead ends: 10087 [2022-03-01 15:40:27,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:40:27,328 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1120 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:27,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 7569 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10087 states. [2022-03-01 15:40:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10087 to 5283. [2022-03-01 15:40:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.622112836046952) internal successors, (13850), 5282 states have internal predecessors, (13850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13850 transitions. [2022-03-01 15:40:27,409 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13850 transitions. Word has length 135 [2022-03-01 15:40:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:27,410 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13850 transitions. [2022-03-01 15:40:27,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13850 transitions. [2022-03-01 15:40:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:27,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:27,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:27,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-01 15:40:27,416 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:27,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:27,416 INFO L85 PathProgramCache]: Analyzing trace with hash 522463993, now seen corresponding path program 181 times [2022-03-01 15:40:27,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:27,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074808682] [2022-03-01 15:40:27,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:27,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:27,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:27,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074808682] [2022-03-01 15:40:27,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074808682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:27,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:27,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:27,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004918170] [2022-03-01 15:40:27,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:27,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:27,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:27,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:27,674 INFO L87 Difference]: Start difference. First operand 5283 states and 13850 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:30,545 INFO L93 Difference]: Finished difference Result 10426 states and 27278 transitions. [2022-03-01 15:40:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:40:30,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:30,556 INFO L225 Difference]: With dead ends: 10426 [2022-03-01 15:40:30,556 INFO L226 Difference]: Without dead ends: 10019 [2022-03-01 15:40:30,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1424, Invalid=4276, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:40:30,557 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1367 mSDsluCounter, 7561 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 7780 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:30,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 7780 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-03-01 15:40:30,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5279. [2022-03-01 15:40:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.6220159151193636) internal successors, (13839), 5278 states have internal predecessors, (13839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13839 transitions. [2022-03-01 15:40:30,633 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13839 transitions. Word has length 135 [2022-03-01 15:40:30,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:30,633 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13839 transitions. [2022-03-01 15:40:30,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13839 transitions. [2022-03-01 15:40:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:30,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:30,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:30,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-01 15:40:30,639 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1045228823, now seen corresponding path program 182 times [2022-03-01 15:40:30,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:30,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101975706] [2022-03-01 15:40:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:30,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:30,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:30,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101975706] [2022-03-01 15:40:30,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101975706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:30,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:30,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:30,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397792809] [2022-03-01 15:40:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:30,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:30,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:30,942 INFO L87 Difference]: Start difference. First operand 5279 states and 13839 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:33,934 INFO L93 Difference]: Finished difference Result 10634 states and 27830 transitions. [2022-03-01 15:40:33,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:40:33,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:33,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:33,949 INFO L225 Difference]: With dead ends: 10634 [2022-03-01 15:40:33,949 INFO L226 Difference]: Without dead ends: 10259 [2022-03-01 15:40:33,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:40:33,950 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1262 mSDsluCounter, 7066 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 7301 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:33,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 7301 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-01 15:40:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5303. [2022-03-01 15:40:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.620331950207469) internal successors, (13893), 5302 states have internal predecessors, (13893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13893 transitions. [2022-03-01 15:40:34,034 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13893 transitions. Word has length 135 [2022-03-01 15:40:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:34,035 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13893 transitions. [2022-03-01 15:40:34,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13893 transitions. [2022-03-01 15:40:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:34,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:34,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:34,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-01 15:40:34,040 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash 194474227, now seen corresponding path program 183 times [2022-03-01 15:40:34,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:34,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760429729] [2022-03-01 15:40:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:34,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:34,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760429729] [2022-03-01 15:40:34,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760429729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:34,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:34,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:34,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988140687] [2022-03-01 15:40:34,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:34,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:34,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:34,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:34,471 INFO L87 Difference]: Start difference. First operand 5303 states and 13893 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:37,321 INFO L93 Difference]: Finished difference Result 10586 states and 27706 transitions. [2022-03-01 15:40:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:40:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:37,334 INFO L225 Difference]: With dead ends: 10586 [2022-03-01 15:40:37,335 INFO L226 Difference]: Without dead ends: 10295 [2022-03-01 15:40:37,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1048, Invalid=3374, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:40:37,335 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1205 mSDsluCounter, 7020 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 7257 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:37,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 7257 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:37,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-01 15:40:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5307. [2022-03-01 15:40:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.6196758386732) internal successors, (13900), 5306 states have internal predecessors, (13900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13900 transitions. [2022-03-01 15:40:37,418 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13900 transitions. Word has length 135 [2022-03-01 15:40:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:37,418 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13900 transitions. [2022-03-01 15:40:37,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13900 transitions. [2022-03-01 15:40:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:37,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:37,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:37,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-01 15:40:37,425 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash -97231801, now seen corresponding path program 184 times [2022-03-01 15:40:37,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:37,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675343707] [2022-03-01 15:40:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:37,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:37,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675343707] [2022-03-01 15:40:37,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675343707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:37,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:37,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:37,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036537414] [2022-03-01 15:40:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:37,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:37,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:37,702 INFO L87 Difference]: Start difference. First operand 5307 states and 13900 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:39,689 INFO L93 Difference]: Finished difference Result 10472 states and 27400 transitions. [2022-03-01 15:40:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:40:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:39,704 INFO L225 Difference]: With dead ends: 10472 [2022-03-01 15:40:39,704 INFO L226 Difference]: Without dead ends: 10206 [2022-03-01 15:40:39,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=827, Invalid=2595, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:40:39,704 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1119 mSDsluCounter, 6980 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:39,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 7200 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10206 states. [2022-03-01 15:40:39,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10206 to 5311. [2022-03-01 15:40:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.619020715630885) internal successors, (13907), 5310 states have internal predecessors, (13907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13907 transitions. [2022-03-01 15:40:39,855 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13907 transitions. Word has length 135 [2022-03-01 15:40:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:39,855 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13907 transitions. [2022-03-01 15:40:39,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13907 transitions. [2022-03-01 15:40:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:39,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:39,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:39,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-01 15:40:39,860 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:39,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2028887023, now seen corresponding path program 185 times [2022-03-01 15:40:39,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:39,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171539531] [2022-03-01 15:40:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:40,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:40,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171539531] [2022-03-01 15:40:40,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171539531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:40,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:40,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:40,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776120066] [2022-03-01 15:40:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:40,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:40,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:40,162 INFO L87 Difference]: Start difference. First operand 5311 states and 13907 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:42,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:42,117 INFO L93 Difference]: Finished difference Result 10434 states and 27300 transitions. [2022-03-01 15:40:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:40:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:42,130 INFO L225 Difference]: With dead ends: 10434 [2022-03-01 15:40:42,131 INFO L226 Difference]: Without dead ends: 10151 [2022-03-01 15:40:42,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=857, Invalid=2803, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:40:42,131 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1117 mSDsluCounter, 7359 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 7583 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:42,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 7583 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-03-01 15:40:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5291. [2022-03-01 15:40:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.620037807183365) internal successors, (13860), 5290 states have internal predecessors, (13860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13860 transitions. [2022-03-01 15:40:42,209 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13860 transitions. Word has length 135 [2022-03-01 15:40:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:42,209 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13860 transitions. [2022-03-01 15:40:42,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13860 transitions. [2022-03-01 15:40:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:42,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:42,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:42,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-01 15:40:42,214 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:42,215 INFO L85 PathProgramCache]: Analyzing trace with hash 728763641, now seen corresponding path program 186 times [2022-03-01 15:40:42,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:42,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263806854] [2022-03-01 15:40:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:42,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:42,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263806854] [2022-03-01 15:40:42,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263806854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:42,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:42,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:42,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557472216] [2022-03-01 15:40:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:42,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:42,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:42,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:42,615 INFO L87 Difference]: Start difference. First operand 5291 states and 13860 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:45,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:45,274 INFO L93 Difference]: Finished difference Result 10494 states and 27453 transitions. [2022-03-01 15:40:45,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:40:45,274 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:45,286 INFO L225 Difference]: With dead ends: 10494 [2022-03-01 15:40:45,287 INFO L226 Difference]: Without dead ends: 10203 [2022-03-01 15:40:45,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:40:45,287 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1178 mSDsluCounter, 6991 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:45,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 7225 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2022-03-01 15:40:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5299. [2022-03-01 15:40:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:45,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-03-01 15:40:45,371 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-03-01 15:40:45,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:45,382 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-03-01 15:40:45,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-03-01 15:40:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:45,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:45,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:45,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-01 15:40:45,389 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 437057613, now seen corresponding path program 187 times [2022-03-01 15:40:45,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:45,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154688999] [2022-03-01 15:40:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:45,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:45,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154688999] [2022-03-01 15:40:45,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154688999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:45,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:45,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:45,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461972001] [2022-03-01 15:40:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:45,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:45,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:45,654 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:47,783 INFO L93 Difference]: Finished difference Result 10444 states and 27323 transitions. [2022-03-01 15:40:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:40:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:47,796 INFO L225 Difference]: With dead ends: 10444 [2022-03-01 15:40:47,796 INFO L226 Difference]: Without dead ends: 10178 [2022-03-01 15:40:47,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:40:47,797 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1162 mSDsluCounter, 6924 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 7143 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:47,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 7143 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:40:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-01 15:40:47,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5303. [2022-03-01 15:40:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-03-01 15:40:47,874 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-03-01 15:40:47,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:47,874 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-03-01 15:40:47,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-03-01 15:40:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:47,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:47,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:47,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-01 15:40:47,880 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1731790859, now seen corresponding path program 188 times [2022-03-01 15:40:47,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:47,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716782348] [2022-03-01 15:40:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:48,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:48,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716782348] [2022-03-01 15:40:48,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716782348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:48,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:48,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:48,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960037674] [2022-03-01 15:40:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:48,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:48,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:48,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:48,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:48,182 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:50,310 INFO L93 Difference]: Finished difference Result 10406 states and 27223 transitions. [2022-03-01 15:40:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:40:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:50,322 INFO L225 Difference]: With dead ends: 10406 [2022-03-01 15:40:50,322 INFO L226 Difference]: Without dead ends: 10135 [2022-03-01 15:40:50,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:40:50,323 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1120 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:50,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 7139 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-03-01 15:40:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 5295. [2022-03-01 15:40:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-03-01 15:40:50,398 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-03-01 15:40:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:50,398 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-03-01 15:40:50,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-03-01 15:40:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:50,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:50,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:50,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-01 15:40:50,404 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:50,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1359010693, now seen corresponding path program 189 times [2022-03-01 15:40:50,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:50,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483819193] [2022-03-01 15:40:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:50,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:50,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:50,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483819193] [2022-03-01 15:40:50,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483819193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:50,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:50,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:50,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221198381] [2022-03-01 15:40:50,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:50,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:50,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:50,818 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:53,033 INFO L93 Difference]: Finished difference Result 10476 states and 27386 transitions. [2022-03-01 15:40:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:40:53,033 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:53,046 INFO L225 Difference]: With dead ends: 10476 [2022-03-01 15:40:53,046 INFO L226 Difference]: Without dead ends: 10179 [2022-03-01 15:40:53,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=999, Invalid=3033, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:40:53,047 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1198 mSDsluCounter, 6956 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 7173 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:53,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 7173 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2022-03-01 15:40:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 5299. [2022-03-01 15:40:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-03-01 15:40:53,129 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-03-01 15:40:53,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:53,129 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-03-01 15:40:53,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:53,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-03-01 15:40:53,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:53,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:53,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:53,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-01 15:40:53,135 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:53,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash 519378823, now seen corresponding path program 190 times [2022-03-01 15:40:53,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:53,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560797847] [2022-03-01 15:40:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:53,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:53,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560797847] [2022-03-01 15:40:53,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560797847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:53,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:53,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:53,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477980317] [2022-03-01 15:40:53,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:53,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:53,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:53,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:53,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:53,437 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:55,451 INFO L93 Difference]: Finished difference Result 10384 states and 27154 transitions. [2022-03-01 15:40:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:40:55,452 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:55,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:55,462 INFO L225 Difference]: With dead ends: 10384 [2022-03-01 15:40:55,462 INFO L226 Difference]: Without dead ends: 10118 [2022-03-01 15:40:55,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=885, Invalid=2775, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:40:55,462 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1154 mSDsluCounter, 6577 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 6804 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:55,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 6804 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2022-03-01 15:40:55,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 5303. [2022-03-01 15:40:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-03-01 15:40:55,526 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-03-01 15:40:55,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:55,526 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-03-01 15:40:55,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-03-01 15:40:55,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:55,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:55,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:55,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-01 15:40:55,532 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1649469649, now seen corresponding path program 191 times [2022-03-01 15:40:55,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:55,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895531994] [2022-03-01 15:40:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:55,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:55,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895531994] [2022-03-01 15:40:55,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895531994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:55,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:55,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:55,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842056716] [2022-03-01 15:40:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:55,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:55,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:55,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:55,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:55,902 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:58,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:58,060 INFO L93 Difference]: Finished difference Result 10306 states and 26944 transitions. [2022-03-01 15:40:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:40:58,060 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:40:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:58,074 INFO L225 Difference]: With dead ends: 10306 [2022-03-01 15:40:58,075 INFO L226 Difference]: Without dead ends: 10015 [2022-03-01 15:40:58,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:40:58,075 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1125 mSDsluCounter, 6877 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:58,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 7102 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:40:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-03-01 15:40:58,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5275. [2022-03-01 15:40:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.62191884717482) internal successors, (13828), 5274 states have internal predecessors, (13828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13828 transitions. [2022-03-01 15:40:58,170 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13828 transitions. Word has length 135 [2022-03-01 15:40:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:58,170 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13828 transitions. [2022-03-01 15:40:58,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13828 transitions. [2022-03-01 15:40:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:40:58,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:58,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:58,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-01 15:40:58,177 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1340234889, now seen corresponding path program 192 times [2022-03-01 15:40:58,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:58,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776141438] [2022-03-01 15:40:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:58,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:58,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:58,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776141438] [2022-03-01 15:40:58,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776141438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:58,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:58,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:40:58,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570551233] [2022-03-01 15:40:58,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:58,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:40:58,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:58,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:40:58,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:40:58,472 INFO L87 Difference]: Start difference. First operand 5275 states and 13828 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:01,116 INFO L93 Difference]: Finished difference Result 10738 states and 28116 transitions. [2022-03-01 15:41:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:41:01,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:01,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:01,128 INFO L225 Difference]: With dead ends: 10738 [2022-03-01 15:41:01,128 INFO L226 Difference]: Without dead ends: 10363 [2022-03-01 15:41:01,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1220, Invalid=3750, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 15:41:01,129 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1249 mSDsluCounter, 7362 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 7597 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:01,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 7597 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-01 15:41:01,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5335. [2022-03-01 15:41:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-03-01 15:41:01,202 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-03-01 15:41:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:01,202 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-03-01 15:41:01,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-03-01 15:41:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:01,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:01,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-01 15:41:01,208 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1715029357, now seen corresponding path program 193 times [2022-03-01 15:41:01,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:01,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355437761] [2022-03-01 15:41:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:01,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:01,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355437761] [2022-03-01 15:41:01,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355437761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:01,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:01,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:01,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791916310] [2022-03-01 15:41:01,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:01,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:01,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:01,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:01,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:01,536 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:04,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:04,306 INFO L93 Difference]: Finished difference Result 10714 states and 28058 transitions. [2022-03-01 15:41:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:41:04,306 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:04,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:04,321 INFO L225 Difference]: With dead ends: 10714 [2022-03-01 15:41:04,321 INFO L226 Difference]: Without dead ends: 10423 [2022-03-01 15:41:04,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1060, Invalid=3362, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:41:04,322 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1193 mSDsluCounter, 6947 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:04,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 7192 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:41:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-01 15:41:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5339. [2022-03-01 15:41:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-03-01 15:41:04,411 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-03-01 15:41:04,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:04,411 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-03-01 15:41:04,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-03-01 15:41:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:04,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:04,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:04,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-01 15:41:04,417 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2006735385, now seen corresponding path program 194 times [2022-03-01 15:41:04,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:04,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223331500] [2022-03-01 15:41:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:04,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:04,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223331500] [2022-03-01 15:41:04,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223331500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:04,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:04,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:04,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090707372] [2022-03-01 15:41:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:04,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:04,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:04,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:04,845 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:07,054 INFO L93 Difference]: Finished difference Result 10600 states and 27752 transitions. [2022-03-01 15:41:07,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:41:07,055 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:07,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:07,072 INFO L225 Difference]: With dead ends: 10600 [2022-03-01 15:41:07,072 INFO L226 Difference]: Without dead ends: 10334 [2022-03-01 15:41:07,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=822, Invalid=2600, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:41:07,073 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1131 mSDsluCounter, 6900 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 7130 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:07,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 7130 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:41:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2022-03-01 15:41:07,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 5343. [2022-03-01 15:41:07,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-03-01 15:41:07,192 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-03-01 15:41:07,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:07,192 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-03-01 15:41:07,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-03-01 15:41:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:07,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:07,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:07,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-01 15:41:07,200 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:07,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:07,201 INFO L85 PathProgramCache]: Analyzing trace with hash 119383439, now seen corresponding path program 195 times [2022-03-01 15:41:07,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:07,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775643013] [2022-03-01 15:41:07,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:07,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:07,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:07,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775643013] [2022-03-01 15:41:07,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775643013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:07,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:07,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:07,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964203301] [2022-03-01 15:41:07,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:07,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:07,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:07,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:07,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:07,446 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:09,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:09,553 INFO L93 Difference]: Finished difference Result 10562 states and 27652 transitions. [2022-03-01 15:41:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:09,554 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:09,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:09,567 INFO L225 Difference]: With dead ends: 10562 [2022-03-01 15:41:09,567 INFO L226 Difference]: Without dead ends: 10279 [2022-03-01 15:41:09,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:09,568 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1137 mSDsluCounter, 6161 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:09,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 6421 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-01 15:41:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5323. [2022-03-01 15:41:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-03-01 15:41:09,658 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-03-01 15:41:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:09,658 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-03-01 15:41:09,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-03-01 15:41:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:09,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:09,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:09,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-01 15:41:09,665 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1180739943, now seen corresponding path program 196 times [2022-03-01 15:41:09,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:09,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491797911] [2022-03-01 15:41:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:09,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:09,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491797911] [2022-03-01 15:41:09,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491797911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:09,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:09,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:09,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744627285] [2022-03-01 15:41:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:09,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:09,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:09,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:09,948 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:12,124 INFO L93 Difference]: Finished difference Result 10722 states and 28080 transitions. [2022-03-01 15:41:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:41:12,124 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:12,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:12,135 INFO L225 Difference]: With dead ends: 10722 [2022-03-01 15:41:12,136 INFO L226 Difference]: Without dead ends: 10431 [2022-03-01 15:41:12,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1034, Invalid=3256, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:41:12,136 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1178 mSDsluCounter, 7317 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 7550 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:12,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 7550 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-01 15:41:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5331. [2022-03-01 15:41:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-01 15:41:12,207 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-01 15:41:12,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:12,207 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-01 15:41:12,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-01 15:41:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:12,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:12,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:12,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-01 15:41:12,212 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1472445971, now seen corresponding path program 197 times [2022-03-01 15:41:12,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:12,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826052685] [2022-03-01 15:41:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:12,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:12,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826052685] [2022-03-01 15:41:12,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826052685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:12,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:12,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:12,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873758792] [2022-03-01 15:41:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:12,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:12,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:12,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:12,647 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:14,440 INFO L93 Difference]: Finished difference Result 10672 states and 27950 transitions. [2022-03-01 15:41:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:41:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:14,453 INFO L225 Difference]: With dead ends: 10672 [2022-03-01 15:41:14,454 INFO L226 Difference]: Without dead ends: 10406 [2022-03-01 15:41:14,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:41:14,454 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1134 mSDsluCounter, 6928 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:14,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 7158 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2022-03-01 15:41:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5335. [2022-03-01 15:41:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-01 15:41:14,534 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-01 15:41:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:14,534 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-01 15:41:14,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:14,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-01 15:41:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:14,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:14,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:14,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-01 15:41:14,539 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:14,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash 653672853, now seen corresponding path program 198 times [2022-03-01 15:41:14,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:14,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094898443] [2022-03-01 15:41:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:14,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:14,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:14,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094898443] [2022-03-01 15:41:14,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094898443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:14,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:14,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:14,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298171495] [2022-03-01 15:41:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:14,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:14,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:14,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:14,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:14,969 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:17,324 INFO L93 Difference]: Finished difference Result 10634 states and 27850 transitions. [2022-03-01 15:41:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:17,338 INFO L225 Difference]: With dead ends: 10634 [2022-03-01 15:41:17,338 INFO L226 Difference]: Without dead ends: 10363 [2022-03-01 15:41:17,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=867, Invalid=2793, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:17,339 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1124 mSDsluCounter, 7273 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 7506 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:17,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 7506 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-01 15:41:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5327. [2022-03-01 15:41:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-01 15:41:17,436 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-01 15:41:17,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:17,436 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-01 15:41:17,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-01 15:41:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:17,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:17,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:17,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-01 15:41:17,442 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1026453019, now seen corresponding path program 199 times [2022-03-01 15:41:17,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:17,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121303574] [2022-03-01 15:41:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:17,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:17,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121303574] [2022-03-01 15:41:17,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121303574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:17,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:17,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:17,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233516290] [2022-03-01 15:41:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:17,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:17,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:17,924 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:20,221 INFO L93 Difference]: Finished difference Result 10724 states and 28068 transitions. [2022-03-01 15:41:20,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:41:20,221 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:20,235 INFO L225 Difference]: With dead ends: 10724 [2022-03-01 15:41:20,236 INFO L226 Difference]: Without dead ends: 10427 [2022-03-01 15:41:20,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1021, Invalid=3139, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:41:20,236 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1178 mSDsluCounter, 7376 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 7588 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:20,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 7588 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10427 states. [2022-03-01 15:41:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10427 to 5331. [2022-03-01 15:41:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:20,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-01 15:41:20,322 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-01 15:41:20,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:20,322 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-01 15:41:20,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-01 15:41:20,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:20,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:20,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:20,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-01 15:41:20,328 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:20,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:20,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1390124761, now seen corresponding path program 200 times [2022-03-01 15:41:20,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:20,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124991747] [2022-03-01 15:41:20,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:20,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:20,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:20,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124991747] [2022-03-01 15:41:20,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124991747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:20,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:20,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:20,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362202069] [2022-03-01 15:41:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:20,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:20,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:20,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:20,673 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:22,827 INFO L93 Difference]: Finished difference Result 10624 states and 27814 transitions. [2022-03-01 15:41:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:22,828 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:22,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:22,841 INFO L225 Difference]: With dead ends: 10624 [2022-03-01 15:41:22,841 INFO L226 Difference]: Without dead ends: 10358 [2022-03-01 15:41:22,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:22,842 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1136 mSDsluCounter, 6904 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:22,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 7136 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10358 states. [2022-03-01 15:41:22,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10358 to 5335. [2022-03-01 15:41:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-01 15:41:22,924 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-01 15:41:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:22,924 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-01 15:41:22,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-01 15:41:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:22,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:22,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:22,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-01 15:41:22,929 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash 735994063, now seen corresponding path program 201 times [2022-03-01 15:41:22,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:22,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059536566] [2022-03-01 15:41:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:23,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:23,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059536566] [2022-03-01 15:41:23,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059536566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:23,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:23,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:23,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339549195] [2022-03-01 15:41:23,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:23,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:23,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:23,288 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:25,359 INFO L93 Difference]: Finished difference Result 10554 states and 27626 transitions. [2022-03-01 15:41:25,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:41:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:25,373 INFO L225 Difference]: With dead ends: 10554 [2022-03-01 15:41:25,373 INFO L226 Difference]: Without dead ends: 10267 [2022-03-01 15:41:25,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:41:25,374 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1128 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 7087 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:25,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 7087 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-03-01 15:41:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5311. [2022-03-01 15:41:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-03-01 15:41:25,457 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-03-01 15:41:25,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:25,486 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-03-01 15:41:25,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-03-01 15:41:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:25,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:25,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:25,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-01 15:41:25,493 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:25,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:25,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1794756299, now seen corresponding path program 202 times [2022-03-01 15:41:25,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:25,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548893886] [2022-03-01 15:41:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:25,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:25,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548893886] [2022-03-01 15:41:25,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548893886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:25,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:25,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:25,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941251054] [2022-03-01 15:41:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:25,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:25,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:25,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:25,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:25,916 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:28,464 INFO L93 Difference]: Finished difference Result 10590 states and 27717 transitions. [2022-03-01 15:41:28,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:41:28,464 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:28,479 INFO L225 Difference]: With dead ends: 10590 [2022-03-01 15:41:28,479 INFO L226 Difference]: Without dead ends: 10299 [2022-03-01 15:41:28,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1011, Invalid=3149, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:41:28,480 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1172 mSDsluCounter, 6896 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 7137 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:28,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 7137 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-01 15:41:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5331. [2022-03-01 15:41:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-01 15:41:28,569 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-01 15:41:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:28,569 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-01 15:41:28,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-01 15:41:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:28,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:28,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:28,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-01 15:41:28,575 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:28,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2086462327, now seen corresponding path program 203 times [2022-03-01 15:41:28,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:28,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52534419] [2022-03-01 15:41:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:28,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:28,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:28,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52534419] [2022-03-01 15:41:28,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52534419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:28,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:28,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:28,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790114651] [2022-03-01 15:41:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:28,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:28,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:28,977 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:30,913 INFO L93 Difference]: Finished difference Result 10556 states and 27631 transitions. [2022-03-01 15:41:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:41:30,913 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:30,927 INFO L225 Difference]: With dead ends: 10556 [2022-03-01 15:41:30,927 INFO L226 Difference]: Without dead ends: 10290 [2022-03-01 15:41:30,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:41:30,928 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1134 mSDsluCounter, 7262 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7475 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:30,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 7475 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2022-03-01 15:41:31,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 5335. [2022-03-01 15:41:31,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-01 15:41:31,048 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-01 15:41:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:31,048 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-01 15:41:31,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-01 15:41:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:31,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:31,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:31,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-01 15:41:31,054 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash 39656497, now seen corresponding path program 204 times [2022-03-01 15:41:31,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:31,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252070597] [2022-03-01 15:41:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:31,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:31,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:31,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252070597] [2022-03-01 15:41:31,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252070597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:31,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:31,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:31,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505893740] [2022-03-01 15:41:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:31,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:31,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:31,500 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:33,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:33,595 INFO L93 Difference]: Finished difference Result 10518 states and 27531 transitions. [2022-03-01 15:41:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:33,595 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:33,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:33,609 INFO L225 Difference]: With dead ends: 10518 [2022-03-01 15:41:33,609 INFO L226 Difference]: Without dead ends: 10247 [2022-03-01 15:41:33,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=872, Invalid=2788, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:33,609 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1130 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7052 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:33,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7052 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10247 states. [2022-03-01 15:41:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10247 to 5327. [2022-03-01 15:41:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-01 15:41:33,692 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-01 15:41:33,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:33,693 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-01 15:41:33,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-01 15:41:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:33,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:33,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:33,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-01 15:41:33,706 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:33,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash 412436663, now seen corresponding path program 205 times [2022-03-01 15:41:33,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:33,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179475699] [2022-03-01 15:41:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:34,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:34,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179475699] [2022-03-01 15:41:34,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179475699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:34,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:34,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:34,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045810244] [2022-03-01 15:41:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:34,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:34,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:34,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:34,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:34,117 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:36,982 INFO L93 Difference]: Finished difference Result 10688 states and 27969 transitions. [2022-03-01 15:41:36,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:41:36,983 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:36,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:36,995 INFO L225 Difference]: With dead ends: 10688 [2022-03-01 15:41:36,995 INFO L226 Difference]: Without dead ends: 10391 [2022-03-01 15:41:36,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:41:36,995 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1212 mSDsluCounter, 6935 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 7154 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:36,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 7154 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:41:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10391 states. [2022-03-01 15:41:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10391 to 5331. [2022-03-01 15:41:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-01 15:41:37,071 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-01 15:41:37,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:37,072 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-01 15:41:37,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-01 15:41:37,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:37,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:37,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:37,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-01 15:41:37,078 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:37,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:37,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2004141117, now seen corresponding path program 206 times [2022-03-01 15:41:37,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:37,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968252534] [2022-03-01 15:41:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:37,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:37,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:37,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968252534] [2022-03-01 15:41:37,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968252534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:37,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:37,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:37,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601940753] [2022-03-01 15:41:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:37,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:37,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:37,345 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:39,102 INFO L93 Difference]: Finished difference Result 10572 states and 27671 transitions. [2022-03-01 15:41:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:39,116 INFO L225 Difference]: With dead ends: 10572 [2022-03-01 15:41:39,116 INFO L226 Difference]: Without dead ends: 10306 [2022-03-01 15:41:39,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:39,117 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1154 mSDsluCounter, 6851 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:39,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 7077 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-01 15:41:39,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5335. [2022-03-01 15:41:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-01 15:41:39,210 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-01 15:41:39,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:39,210 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-01 15:41:39,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:39,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-01 15:41:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:39,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:39,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:39,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-01 15:41:39,217 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash 121977707, now seen corresponding path program 207 times [2022-03-01 15:41:39,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:39,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889260942] [2022-03-01 15:41:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:39,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:39,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:39,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889260942] [2022-03-01 15:41:39,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889260942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:39,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:39,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:39,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112327167] [2022-03-01 15:41:39,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:39,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:39,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:39,612 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:41,673 INFO L93 Difference]: Finished difference Result 10518 states and 27527 transitions. [2022-03-01 15:41:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:41:41,673 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:41,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:41,684 INFO L225 Difference]: With dead ends: 10518 [2022-03-01 15:41:41,684 INFO L226 Difference]: Without dead ends: 10243 [2022-03-01 15:41:41,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=845, Invalid=2695, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:41:41,685 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1124 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 6346 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:41,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 6346 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2022-03-01 15:41:41,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5323. [2022-03-01 15:41:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-03-01 15:41:41,755 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-03-01 15:41:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:41,755 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-03-01 15:41:41,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-03-01 15:41:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:41,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:41,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:41,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-01 15:41:41,760 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash -497328345, now seen corresponding path program 208 times [2022-03-01 15:41:41,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:41,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645550873] [2022-03-01 15:41:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:42,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:42,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645550873] [2022-03-01 15:41:42,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645550873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:42,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:42,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:42,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709372707] [2022-03-01 15:41:42,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:42,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:42,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:42,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:42,130 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:44,703 INFO L93 Difference]: Finished difference Result 10675 states and 27902 transitions. [2022-03-01 15:41:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:41:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:44,717 INFO L225 Difference]: With dead ends: 10675 [2022-03-01 15:41:44,717 INFO L226 Difference]: Without dead ends: 10285 [2022-03-01 15:41:44,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:41:44,718 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1257 mSDsluCounter, 7354 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 7564 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:44,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 7564 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:41:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2022-03-01 15:41:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 5335. [2022-03-01 15:41:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-01 15:41:44,806 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-01 15:41:44,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:44,807 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-01 15:41:44,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-01 15:41:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:44,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:44,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:44,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-01 15:41:44,812 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:44,812 INFO L85 PathProgramCache]: Analyzing trace with hash -890793381, now seen corresponding path program 209 times [2022-03-01 15:41:44,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:44,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225103298] [2022-03-01 15:41:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:44,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:45,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:45,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225103298] [2022-03-01 15:41:45,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225103298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:45,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:45,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:45,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070931084] [2022-03-01 15:41:45,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:45,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:45,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:45,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:45,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:45,080 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:47,197 INFO L93 Difference]: Finished difference Result 10536 states and 27539 transitions. [2022-03-01 15:41:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:41:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:47,211 INFO L225 Difference]: With dead ends: 10536 [2022-03-01 15:41:47,211 INFO L226 Difference]: Without dead ends: 10239 [2022-03-01 15:41:47,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1068, Invalid=3354, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:41:47,211 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1213 mSDsluCounter, 6963 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:47,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1213 Valid, 7181 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-03-01 15:41:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5339. [2022-03-01 15:41:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-03-01 15:41:47,298 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-03-01 15:41:47,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:47,299 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-03-01 15:41:47,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-03-01 15:41:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:47,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:47,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:47,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-01 15:41:47,305 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash 987596135, now seen corresponding path program 210 times [2022-03-01 15:41:47,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:47,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355566497] [2022-03-01 15:41:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:47,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:47,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355566497] [2022-03-01 15:41:47,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355566497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:47,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:47,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:47,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872610624] [2022-03-01 15:41:47,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:47,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:47,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:47,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:47,663 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:49,595 INFO L93 Difference]: Finished difference Result 10444 states and 27307 transitions. [2022-03-01 15:41:49,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:41:49,595 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:49,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:49,608 INFO L225 Difference]: With dead ends: 10444 [2022-03-01 15:41:49,609 INFO L226 Difference]: Without dead ends: 10178 [2022-03-01 15:41:49,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:41:49,609 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1146 mSDsluCounter, 7216 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:49,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 7428 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:41:49,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-01 15:41:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5343. [2022-03-01 15:41:49,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-03-01 15:41:49,700 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-03-01 15:41:49,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:49,700 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-03-01 15:41:49,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-03-01 15:41:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:49,707 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:49,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:49,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-01 15:41:49,707 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:49,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:49,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1181252337, now seen corresponding path program 211 times [2022-03-01 15:41:49,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:49,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598639157] [2022-03-01 15:41:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:50,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:50,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598639157] [2022-03-01 15:41:50,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598639157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:50,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:50,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:50,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091473860] [2022-03-01 15:41:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:50,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:50,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:50,098 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:52,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:52,381 INFO L93 Difference]: Finished difference Result 10346 states and 27042 transitions. [2022-03-01 15:41:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:41:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:52,393 INFO L225 Difference]: With dead ends: 10346 [2022-03-01 15:41:52,393 INFO L226 Difference]: Without dead ends: 10003 [2022-03-01 15:41:52,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=814, Invalid=2608, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:41:52,394 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1113 mSDsluCounter, 7140 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:52,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7359 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:41:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-03-01 15:41:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5263. [2022-03-01 15:41:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.621626757886735) internal successors, (13795), 5262 states have internal predecessors, (13795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13795 transitions. [2022-03-01 15:41:52,471 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13795 transitions. Word has length 135 [2022-03-01 15:41:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:52,471 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13795 transitions. [2022-03-01 15:41:52,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13795 transitions. [2022-03-01 15:41:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:52,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:52,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:52,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-01 15:41:52,477 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1540745765, now seen corresponding path program 212 times [2022-03-01 15:41:52,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:52,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557227042] [2022-03-01 15:41:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:52,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:52,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:52,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557227042] [2022-03-01 15:41:52,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557227042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:52,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:52,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:52,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90594838] [2022-03-01 15:41:52,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:52,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:52,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:52,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:52,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:52,823 INFO L87 Difference]: Start difference. First operand 5263 states and 13795 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:55,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:55,436 INFO L93 Difference]: Finished difference Result 10762 states and 28182 transitions. [2022-03-01 15:41:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:41:55,436 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:55,450 INFO L225 Difference]: With dead ends: 10762 [2022-03-01 15:41:55,450 INFO L226 Difference]: Without dead ends: 10387 [2022-03-01 15:41:55,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:41:55,451 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1243 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 7162 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:55,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 7162 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10387 states. [2022-03-01 15:41:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10387 to 5335. [2022-03-01 15:41:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-03-01 15:41:55,583 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-03-01 15:41:55,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:55,583 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-03-01 15:41:55,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-03-01 15:41:55,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:55,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:55,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:55,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-01 15:41:55,588 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:55,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1514518481, now seen corresponding path program 213 times [2022-03-01 15:41:55,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:55,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791657032] [2022-03-01 15:41:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:55,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:55,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791657032] [2022-03-01 15:41:55,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791657032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:55,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:55,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:55,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147708272] [2022-03-01 15:41:55,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:55,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:55,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:55,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:55,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:55,861 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:41:58,377 INFO L93 Difference]: Finished difference Result 10810 states and 28298 transitions. [2022-03-01 15:41:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:41:58,377 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:41:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:41:58,393 INFO L225 Difference]: With dead ends: 10810 [2022-03-01 15:41:58,393 INFO L226 Difference]: Without dead ends: 10519 [2022-03-01 15:41:58,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1068, Invalid=3354, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:41:58,394 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1198 mSDsluCounter, 6873 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:41:58,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 7127 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:41:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-01 15:41:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5339. [2022-03-01 15:41:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-03-01 15:41:58,491 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-03-01 15:41:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:41:58,491 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-03-01 15:41:58,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:41:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-03-01 15:41:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:41:58,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:41:58,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:41:58,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-01 15:41:58,498 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:41:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:41:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1806224509, now seen corresponding path program 214 times [2022-03-01 15:41:58,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:41:58,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559431412] [2022-03-01 15:41:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:41:58,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:41:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:41:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:41:58,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:41:58,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559431412] [2022-03-01 15:41:58,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559431412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:41:58,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:41:58,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:41:58,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669885682] [2022-03-01 15:41:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:41:58,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:41:58,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:41:58,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:41:58,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:41:58,771 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:00,950 INFO L93 Difference]: Finished difference Result 10696 states and 27992 transitions. [2022-03-01 15:42:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:42:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:00,962 INFO L225 Difference]: With dead ends: 10696 [2022-03-01 15:42:00,963 INFO L226 Difference]: Without dead ends: 10430 [2022-03-01 15:42:00,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=815, Invalid=2607, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:42:00,987 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1126 mSDsluCounter, 7265 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:00,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7495 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-03-01 15:42:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5343. [2022-03-01 15:42:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-03-01 15:42:01,083 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-03-01 15:42:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:01,083 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-03-01 15:42:01,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-03-01 15:42:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:01,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:01,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:01,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-01 15:42:01,089 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:01,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash 319894315, now seen corresponding path program 215 times [2022-03-01 15:42:01,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:01,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329985328] [2022-03-01 15:42:01,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:01,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:01,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329985328] [2022-03-01 15:42:01,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329985328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:01,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:01,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:01,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032926725] [2022-03-01 15:42:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:01,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:01,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:01,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:01,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:01,483 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:03,366 INFO L93 Difference]: Finished difference Result 10658 states and 27892 transitions. [2022-03-01 15:42:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:03,366 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:03,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:03,380 INFO L225 Difference]: With dead ends: 10658 [2022-03-01 15:42:03,380 INFO L226 Difference]: Without dead ends: 10375 [2022-03-01 15:42:03,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:03,381 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1117 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:03,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 7109 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-03-01 15:42:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5323. [2022-03-01 15:42:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-03-01 15:42:03,467 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-03-01 15:42:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:03,467 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-03-01 15:42:03,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-03-01 15:42:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:03,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:03,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:03,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-01 15:42:03,473 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:03,473 INFO L85 PathProgramCache]: Analyzing trace with hash -980229067, now seen corresponding path program 216 times [2022-03-01 15:42:03,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:03,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386686695] [2022-03-01 15:42:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:03,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:03,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:03,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386686695] [2022-03-01 15:42:03,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386686695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:03,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:03,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:03,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29172127] [2022-03-01 15:42:03,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:03,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:03,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:03,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:03,730 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:06,192 INFO L93 Difference]: Finished difference Result 10818 states and 28320 transitions. [2022-03-01 15:42:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:42:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:06,204 INFO L225 Difference]: With dead ends: 10818 [2022-03-01 15:42:06,204 INFO L226 Difference]: Without dead ends: 10527 [2022-03-01 15:42:06,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:42:06,205 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1181 mSDsluCounter, 7239 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 7482 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:06,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 7482 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:06,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-03-01 15:42:06,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5331. [2022-03-01 15:42:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-01 15:42:06,274 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-01 15:42:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:06,275 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-01 15:42:06,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-01 15:42:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:06,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:06,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:06,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-01 15:42:06,280 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:06,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1271935095, now seen corresponding path program 217 times [2022-03-01 15:42:06,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:06,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514112227] [2022-03-01 15:42:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:06,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:06,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514112227] [2022-03-01 15:42:06,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514112227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:06,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:06,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:06,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668114357] [2022-03-01 15:42:06,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:06,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:06,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:06,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:06,671 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:08,742 INFO L93 Difference]: Finished difference Result 10768 states and 28190 transitions. [2022-03-01 15:42:08,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:08,742 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:08,756 INFO L225 Difference]: With dead ends: 10768 [2022-03-01 15:42:08,757 INFO L226 Difference]: Without dead ends: 10502 [2022-03-01 15:42:08,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:08,757 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1151 mSDsluCounter, 6880 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 7122 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:08,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 7122 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-03-01 15:42:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 5335. [2022-03-01 15:42:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-01 15:42:08,839 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-01 15:42:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:08,840 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-01 15:42:08,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-01 15:42:08,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:08,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:08,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:08,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-01 15:42:08,845 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash 854183729, now seen corresponding path program 218 times [2022-03-01 15:42:08,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:08,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402100754] [2022-03-01 15:42:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:08,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:09,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:09,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402100754] [2022-03-01 15:42:09,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402100754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:09,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:09,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:09,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578996528] [2022-03-01 15:42:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:09,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:09,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:09,134 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:10,864 INFO L93 Difference]: Finished difference Result 10730 states and 28090 transitions. [2022-03-01 15:42:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:10,865 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:10,875 INFO L225 Difference]: With dead ends: 10730 [2022-03-01 15:42:10,876 INFO L226 Difference]: Without dead ends: 10459 [2022-03-01 15:42:10,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:10,876 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1115 mSDsluCounter, 7244 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 7487 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:10,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 7487 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-03-01 15:42:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 5327. [2022-03-01 15:42:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-01 15:42:10,945 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-01 15:42:10,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:10,946 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-01 15:42:10,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:10,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-01 15:42:10,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:10,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:10,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:10,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-01 15:42:10,951 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:10,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1226963895, now seen corresponding path program 219 times [2022-03-01 15:42:10,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:10,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118173453] [2022-03-01 15:42:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:11,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:11,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118173453] [2022-03-01 15:42:11,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118173453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:11,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:11,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:11,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631608684] [2022-03-01 15:42:11,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:11,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:11,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:11,294 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:13,744 INFO L93 Difference]: Finished difference Result 10820 states and 28308 transitions. [2022-03-01 15:42:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:42:13,744 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:13,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:13,757 INFO L225 Difference]: With dead ends: 10820 [2022-03-01 15:42:13,757 INFO L226 Difference]: Without dead ends: 10523 [2022-03-01 15:42:13,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1011, Invalid=3149, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:42:13,758 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1206 mSDsluCounter, 6960 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 7193 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:13,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 7193 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-03-01 15:42:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5331. [2022-03-01 15:42:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-01 15:42:13,835 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-01 15:42:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:13,835 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-01 15:42:13,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-01 15:42:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:13,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:13,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:13,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-01 15:42:13,840 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:13,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1189613885, now seen corresponding path program 220 times [2022-03-01 15:42:13,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:13,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366305289] [2022-03-01 15:42:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:13,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:14,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:14,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366305289] [2022-03-01 15:42:14,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366305289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:14,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:14,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:14,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421796577] [2022-03-01 15:42:14,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:14,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:14,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:14,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:14,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:14,187 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:16,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:16,239 INFO L93 Difference]: Finished difference Result 10720 states and 28054 transitions. [2022-03-01 15:42:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:16,240 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:16,251 INFO L225 Difference]: With dead ends: 10720 [2022-03-01 15:42:16,251 INFO L226 Difference]: Without dead ends: 10454 [2022-03-01 15:42:16,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:16,252 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1140 mSDsluCounter, 6898 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:16,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7138 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-03-01 15:42:16,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5335. [2022-03-01 15:42:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-01 15:42:16,322 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-01 15:42:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:16,322 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-01 15:42:16,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-01 15:42:16,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:16,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:16,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:16,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-01 15:42:16,327 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:16,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash 936504939, now seen corresponding path program 221 times [2022-03-01 15:42:16,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:16,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295879620] [2022-03-01 15:42:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:16,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:16,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:16,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295879620] [2022-03-01 15:42:16,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295879620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:16,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:16,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:16,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714784915] [2022-03-01 15:42:16,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:16,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:16,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:16,604 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:18,593 INFO L93 Difference]: Finished difference Result 10650 states and 27866 transitions. [2022-03-01 15:42:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:18,594 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:18,608 INFO L225 Difference]: With dead ends: 10650 [2022-03-01 15:42:18,608 INFO L226 Difference]: Without dead ends: 10363 [2022-03-01 15:42:18,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:18,609 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1115 mSDsluCounter, 6825 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:18,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 7073 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:18,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-01 15:42:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5311. [2022-03-01 15:42:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-03-01 15:42:18,689 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-03-01 15:42:18,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:18,689 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-03-01 15:42:18,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-03-01 15:42:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:18,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:18,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:18,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-01 15:42:18,695 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1594245423, now seen corresponding path program 222 times [2022-03-01 15:42:18,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:18,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277669231] [2022-03-01 15:42:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:18,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:18,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277669231] [2022-03-01 15:42:18,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277669231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:18,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:18,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:18,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988692459] [2022-03-01 15:42:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:18,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:18,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:18,949 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:21,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:21,004 INFO L93 Difference]: Finished difference Result 10866 states and 28452 transitions. [2022-03-01 15:42:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:42:21,004 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:21,016 INFO L225 Difference]: With dead ends: 10866 [2022-03-01 15:42:21,016 INFO L226 Difference]: Without dead ends: 10575 [2022-03-01 15:42:21,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1021, Invalid=3139, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:42:21,017 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1182 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:21,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 7109 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2022-03-01 15:42:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5331. [2022-03-01 15:42:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-01 15:42:21,101 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-01 15:42:21,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:21,102 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-01 15:42:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-01 15:42:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:21,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:21,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:21,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-01 15:42:21,108 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:21,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1885951451, now seen corresponding path program 223 times [2022-03-01 15:42:21,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:21,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918188536] [2022-03-01 15:42:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:21,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:21,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918188536] [2022-03-01 15:42:21,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918188536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:21,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:21,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:21,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739616299] [2022-03-01 15:42:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:21,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:21,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:21,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:21,372 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:23,268 INFO L93 Difference]: Finished difference Result 10832 states and 28366 transitions. [2022-03-01 15:42:23,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:23,268 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:23,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:23,282 INFO L225 Difference]: With dead ends: 10832 [2022-03-01 15:42:23,282 INFO L226 Difference]: Without dead ends: 10566 [2022-03-01 15:42:23,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:23,282 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1138 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 7126 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:23,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 7126 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-03-01 15:42:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 5335. [2022-03-01 15:42:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-01 15:42:23,360 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-01 15:42:23,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:23,360 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-01 15:42:23,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-01 15:42:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:23,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:23,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:23,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-01 15:42:23,366 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:23,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:23,366 INFO L85 PathProgramCache]: Analyzing trace with hash 240167373, now seen corresponding path program 224 times [2022-03-01 15:42:23,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:23,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994118175] [2022-03-01 15:42:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:23,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:23,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:23,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:23,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994118175] [2022-03-01 15:42:23,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994118175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:23,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:23,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:23,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823933721] [2022-03-01 15:42:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:23,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:23,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:23,750 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:25,609 INFO L93 Difference]: Finished difference Result 10794 states and 28266 transitions. [2022-03-01 15:42:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:25,610 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:25,621 INFO L225 Difference]: With dead ends: 10794 [2022-03-01 15:42:25,621 INFO L226 Difference]: Without dead ends: 10523 [2022-03-01 15:42:25,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=877, Invalid=2783, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:25,622 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1135 mSDsluCounter, 6825 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:25,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 7078 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:25,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-03-01 15:42:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5327. [2022-03-01 15:42:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-01 15:42:25,695 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-01 15:42:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-01 15:42:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-01 15:42:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:25,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:25,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:25,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-01 15:42:25,701 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:25,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:25,701 INFO L85 PathProgramCache]: Analyzing trace with hash 612947539, now seen corresponding path program 225 times [2022-03-01 15:42:25,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:25,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005553270] [2022-03-01 15:42:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:26,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:26,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005553270] [2022-03-01 15:42:26,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005553270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:26,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:26,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:26,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599094960] [2022-03-01 15:42:26,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:26,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:26,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:26,082 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:28,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:28,416 INFO L93 Difference]: Finished difference Result 10964 states and 28704 transitions. [2022-03-01 15:42:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:42:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:28,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:28,431 INFO L225 Difference]: With dead ends: 10964 [2022-03-01 15:42:28,431 INFO L226 Difference]: Without dead ends: 10667 [2022-03-01 15:42:28,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1034, Invalid=3256, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:42:28,432 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1219 mSDsluCounter, 6977 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:28,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 7212 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:28,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2022-03-01 15:42:28,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 5331. [2022-03-01 15:42:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-01 15:42:28,513 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-01 15:42:28,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:28,513 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-01 15:42:28,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:28,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-01 15:42:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:28,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:28,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:28,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-01 15:42:28,520 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:28,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:28,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1803630241, now seen corresponding path program 226 times [2022-03-01 15:42:28,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:28,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736303314] [2022-03-01 15:42:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:28,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:28,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736303314] [2022-03-01 15:42:28,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736303314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:28,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:28,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:28,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504112962] [2022-03-01 15:42:28,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:28,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:28,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:28,879 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:30,897 INFO L93 Difference]: Finished difference Result 10848 states and 28406 transitions. [2022-03-01 15:42:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:30,911 INFO L225 Difference]: With dead ends: 10848 [2022-03-01 15:42:30,911 INFO L226 Difference]: Without dead ends: 10582 [2022-03-01 15:42:30,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:30,912 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1162 mSDsluCounter, 6885 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 7128 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:30,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 7128 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-03-01 15:42:30,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 5335. [2022-03-01 15:42:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-01 15:42:30,990 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-01 15:42:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:30,990 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-01 15:42:30,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:30,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-01 15:42:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:30,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:30,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:30,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-01 15:42:30,996 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:30,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:30,996 INFO L85 PathProgramCache]: Analyzing trace with hash 322488583, now seen corresponding path program 227 times [2022-03-01 15:42:30,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:30,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113187361] [2022-03-01 15:42:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:30,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:31,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:31,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113187361] [2022-03-01 15:42:31,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113187361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:31,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:31,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:31,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564024708] [2022-03-01 15:42:31,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:31,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:31,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:31,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:31,256 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:32,871 INFO L93 Difference]: Finished difference Result 10794 states and 28262 transitions. [2022-03-01 15:42:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:32,885 INFO L225 Difference]: With dead ends: 10794 [2022-03-01 15:42:32,885 INFO L226 Difference]: Without dead ends: 10519 [2022-03-01 15:42:32,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:32,886 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1129 mSDsluCounter, 6807 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:32,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7057 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-01 15:42:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5323. [2022-03-01 15:42:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-03-01 15:42:32,968 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-03-01 15:42:32,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:32,968 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-03-01 15:42:32,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-03-01 15:42:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:32,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:32,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:32,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-01 15:42:32,974 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash -296817469, now seen corresponding path program 228 times [2022-03-01 15:42:32,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:32,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730197334] [2022-03-01 15:42:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:33,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:33,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730197334] [2022-03-01 15:42:33,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730197334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:33,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:33,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:33,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889714561] [2022-03-01 15:42:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:33,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:33,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:33,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:33,322 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:35,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:35,884 INFO L93 Difference]: Finished difference Result 10987 states and 28736 transitions. [2022-03-01 15:42:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:42:35,885 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:35,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:35,899 INFO L225 Difference]: With dead ends: 10987 [2022-03-01 15:42:35,899 INFO L226 Difference]: Without dead ends: 10597 [2022-03-01 15:42:35,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1220, Invalid=3750, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 15:42:35,900 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1265 mSDsluCounter, 7064 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 7293 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:35,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 7293 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10597 states. [2022-03-01 15:42:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10597 to 5335. [2022-03-01 15:42:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-01 15:42:35,983 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-01 15:42:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:35,983 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-01 15:42:35,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-01 15:42:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:35,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:35,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:35,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-01 15:42:35,988 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash -690282505, now seen corresponding path program 229 times [2022-03-01 15:42:35,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:35,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571217910] [2022-03-01 15:42:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:36,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:36,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571217910] [2022-03-01 15:42:36,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571217910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:36,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:36,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:36,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232513607] [2022-03-01 15:42:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:36,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:36,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:36,523 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:39,152 INFO L93 Difference]: Finished difference Result 10844 states and 28362 transitions. [2022-03-01 15:42:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:42:39,152 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:39,164 INFO L225 Difference]: With dead ends: 10844 [2022-03-01 15:42:39,164 INFO L226 Difference]: Without dead ends: 10547 [2022-03-01 15:42:39,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1058, Invalid=3364, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:42:39,164 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1205 mSDsluCounter, 7004 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:39,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 7238 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10547 states. [2022-03-01 15:42:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10547 to 5339. [2022-03-01 15:42:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-03-01 15:42:39,236 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-03-01 15:42:39,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:39,236 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-03-01 15:42:39,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:39,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-03-01 15:42:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:39,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:39,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:39,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-01 15:42:39,241 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:39,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:39,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1188107011, now seen corresponding path program 230 times [2022-03-01 15:42:39,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:39,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530601428] [2022-03-01 15:42:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:39,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:39,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:39,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530601428] [2022-03-01 15:42:39,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530601428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:39,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:39,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:39,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286293613] [2022-03-01 15:42:39,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:39,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:39,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:39,528 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:41,137 INFO L93 Difference]: Finished difference Result 10744 states and 28108 transitions. [2022-03-01 15:42:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:41,151 INFO L225 Difference]: With dead ends: 10744 [2022-03-01 15:42:41,151 INFO L226 Difference]: Without dead ends: 10478 [2022-03-01 15:42:41,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:41,152 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1142 mSDsluCounter, 6153 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 6407 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:41,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 6407 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:42:41,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-01 15:42:41,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5343. [2022-03-01 15:42:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-03-01 15:42:41,236 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-03-01 15:42:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:41,236 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-03-01 15:42:41,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:41,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-03-01 15:42:41,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:41,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:41,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:41,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-01 15:42:41,241 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:41,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:41,241 INFO L85 PathProgramCache]: Analyzing trace with hash -980741461, now seen corresponding path program 231 times [2022-03-01 15:42:41,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:41,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29307429] [2022-03-01 15:42:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:41,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:41,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:41,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29307429] [2022-03-01 15:42:41,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29307429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:41,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:41,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:41,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102739874] [2022-03-01 15:42:41,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:41,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:41,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:41,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:41,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:41,498 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:43,621 INFO L93 Difference]: Finished difference Result 10658 states and 27876 transitions. [2022-03-01 15:42:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:42:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:43,632 INFO L225 Difference]: With dead ends: 10658 [2022-03-01 15:42:43,632 INFO L226 Difference]: Without dead ends: 10327 [2022-03-01 15:42:43,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=820, Invalid=2602, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:42:43,633 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1097 mSDsluCounter, 7541 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:43,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 7770 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-03-01 15:42:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 5275. [2022-03-01 15:42:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.619643534319302) internal successors, (13816), 5274 states have internal predecessors, (13816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13816 transitions. [2022-03-01 15:42:43,697 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13816 transitions. Word has length 135 [2022-03-01 15:42:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:43,697 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13816 transitions. [2022-03-01 15:42:43,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13816 transitions. [2022-03-01 15:42:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:43,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:43,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:43,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-01 15:42:43,703 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:43,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash 689155321, now seen corresponding path program 232 times [2022-03-01 15:42:43,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:43,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049836520] [2022-03-01 15:42:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:43,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:44,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:44,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049836520] [2022-03-01 15:42:44,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049836520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:44,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:44,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:44,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979128042] [2022-03-01 15:42:44,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:44,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:44,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:44,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:44,078 INFO L87 Difference]: Start difference. First operand 5275 states and 13816 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:45,981 INFO L93 Difference]: Finished difference Result 10590 states and 27713 transitions. [2022-03-01 15:42:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:42:45,981 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:45,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:45,994 INFO L225 Difference]: With dead ends: 10590 [2022-03-01 15:42:45,994 INFO L226 Difference]: Without dead ends: 10299 [2022-03-01 15:42:45,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=998, Invalid=3034, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:42:45,995 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1162 mSDsluCounter, 7198 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:45,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 7438 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:46,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-01 15:42:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5299. [2022-03-01 15:42:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-03-01 15:42:46,072 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-03-01 15:42:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:46,073 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-03-01 15:42:46,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-03-01 15:42:46,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:46,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:46,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:46,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-01 15:42:46,078 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 397449293, now seen corresponding path program 233 times [2022-03-01 15:42:46,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:46,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238591331] [2022-03-01 15:42:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:46,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:46,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:46,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238591331] [2022-03-01 15:42:46,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238591331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:46,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:46,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:46,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915104303] [2022-03-01 15:42:46,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:46,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:46,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:46,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:46,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:46,334 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:48,011 INFO L93 Difference]: Finished difference Result 10604 states and 27743 transitions. [2022-03-01 15:42:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:48,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:48,023 INFO L225 Difference]: With dead ends: 10604 [2022-03-01 15:42:48,023 INFO L226 Difference]: Without dead ends: 10338 [2022-03-01 15:42:48,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:48,023 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1152 mSDsluCounter, 6823 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 7058 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:48,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 7058 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2022-03-01 15:42:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 5303. [2022-03-01 15:42:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-03-01 15:42:48,089 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-03-01 15:42:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:48,089 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-03-01 15:42:48,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-03-01 15:42:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:48,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:48,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:48,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-01 15:42:48,095 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1771399179, now seen corresponding path program 234 times [2022-03-01 15:42:48,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:48,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871546756] [2022-03-01 15:42:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:48,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:48,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:48,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871546756] [2022-03-01 15:42:48,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871546756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:48,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:48,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:48,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130290022] [2022-03-01 15:42:48,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:48,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:48,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:48,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:48,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:48,439 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:50,554 INFO L93 Difference]: Finished difference Result 10566 states and 27643 transitions. [2022-03-01 15:42:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:50,554 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:50,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:50,568 INFO L225 Difference]: With dead ends: 10566 [2022-03-01 15:42:50,568 INFO L226 Difference]: Without dead ends: 10295 [2022-03-01 15:42:50,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=885, Invalid=2775, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:50,568 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1133 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 6985 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:50,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 6985 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:50,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-01 15:42:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5295. [2022-03-01 15:42:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-03-01 15:42:50,649 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-03-01 15:42:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:50,650 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-03-01 15:42:50,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-03-01 15:42:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:50,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:50,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:50,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-01 15:42:50,655 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:50,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:50,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1398619013, now seen corresponding path program 235 times [2022-03-01 15:42:50,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:50,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158906481] [2022-03-01 15:42:50,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:50,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:51,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:51,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158906481] [2022-03-01 15:42:51,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158906481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:51,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:51,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:51,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064361320] [2022-03-01 15:42:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:51,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:51,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:51,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:51,053 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:53,332 INFO L93 Difference]: Finished difference Result 10736 states and 28081 transitions. [2022-03-01 15:42:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:42:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:53,344 INFO L225 Difference]: With dead ends: 10736 [2022-03-01 15:42:53,344 INFO L226 Difference]: Without dead ends: 10439 [2022-03-01 15:42:53,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:42:53,344 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1236 mSDsluCounter, 6909 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 7136 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:53,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 7136 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2022-03-01 15:42:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 5299. [2022-03-01 15:42:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:53,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-03-01 15:42:53,416 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-03-01 15:42:53,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:53,416 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-03-01 15:42:53,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-03-01 15:42:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:53,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:53,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:53,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-01 15:42:53,422 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 479770503, now seen corresponding path program 236 times [2022-03-01 15:42:53,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:53,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489141631] [2022-03-01 15:42:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:53,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:53,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:53,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489141631] [2022-03-01 15:42:53,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489141631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:53,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:53,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:53,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334170935] [2022-03-01 15:42:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:53,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:53,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:53,758 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:55,960 INFO L93 Difference]: Finished difference Result 10620 states and 27783 transitions. [2022-03-01 15:42:55,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:42:55,960 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:55,973 INFO L225 Difference]: With dead ends: 10620 [2022-03-01 15:42:55,974 INFO L226 Difference]: Without dead ends: 10354 [2022-03-01 15:42:55,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:42:55,974 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1151 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 6373 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:55,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 6373 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:42:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2022-03-01 15:42:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 5303. [2022-03-01 15:42:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-03-01 15:42:56,051 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-03-01 15:42:56,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:56,052 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-03-01 15:42:56,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-03-01 15:42:56,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:56,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:56,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:56,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-01 15:42:56,057 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1689077969, now seen corresponding path program 237 times [2022-03-01 15:42:56,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:56,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474520267] [2022-03-01 15:42:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:56,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:56,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474520267] [2022-03-01 15:42:56,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474520267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:56,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:56,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:56,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685490455] [2022-03-01 15:42:56,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:56,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:56,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:56,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:56,373 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:42:58,306 INFO L93 Difference]: Finished difference Result 10566 states and 27639 transitions. [2022-03-01 15:42:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:42:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:42:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:42:58,317 INFO L225 Difference]: With dead ends: 10566 [2022-03-01 15:42:58,318 INFO L226 Difference]: Without dead ends: 10291 [2022-03-01 15:42:58,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:42:58,318 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1141 mSDsluCounter, 6713 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 6953 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:42:58,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 6953 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:42:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-03-01 15:42:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5291. [2022-03-01 15:42:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.619281663516068) internal successors, (13856), 5290 states have internal predecessors, (13856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:58,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13856 transitions. [2022-03-01 15:42:58,402 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13856 transitions. Word has length 135 [2022-03-01 15:42:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:42:58,403 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13856 transitions. [2022-03-01 15:42:58,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:42:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13856 transitions. [2022-03-01 15:42:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:42:58,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:42:58,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:42:58,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-01 15:42:58,409 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:42:58,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:42:58,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1986583275, now seen corresponding path program 238 times [2022-03-01 15:42:58,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:42:58,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177928778] [2022-03-01 15:42:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:42:58,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:42:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:42:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:42:58,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:42:58,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177928778] [2022-03-01 15:42:58,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177928778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:42:58,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:42:58,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:42:58,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856076702] [2022-03-01 15:42:58,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:42:58,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:42:58,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:42:58,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:42:58,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:42:58,748 INFO L87 Difference]: Start difference. First operand 5291 states and 13856 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:00,976 INFO L93 Difference]: Finished difference Result 10903 states and 28509 transitions. [2022-03-01 15:43:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:43:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:00,990 INFO L225 Difference]: With dead ends: 10903 [2022-03-01 15:43:00,990 INFO L226 Difference]: Without dead ends: 10513 [2022-03-01 15:43:00,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:43:00,991 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1286 mSDsluCounter, 7403 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 7613 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:00,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 7613 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-01 15:43:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 5303. [2022-03-01 15:43:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.617314221048661) internal successors, (13877), 5302 states have internal predecessors, (13877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13877 transitions. [2022-03-01 15:43:01,075 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13877 transitions. Word has length 135 [2022-03-01 15:43:01,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:01,075 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13877 transitions. [2022-03-01 15:43:01,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:01,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13877 transitions. [2022-03-01 15:43:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:01,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:01,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:01,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-01 15:43:01,081 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1593118239, now seen corresponding path program 239 times [2022-03-01 15:43:01,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:01,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590956117] [2022-03-01 15:43:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:01,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:01,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590956117] [2022-03-01 15:43:01,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590956117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:01,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:01,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:01,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123868187] [2022-03-01 15:43:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:01,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:01,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:01,421 INFO L87 Difference]: Start difference. First operand 5303 states and 13877 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:03,857 INFO L93 Difference]: Finished difference Result 10752 states and 28113 transitions. [2022-03-01 15:43:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:43:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:03,870 INFO L225 Difference]: With dead ends: 10752 [2022-03-01 15:43:03,871 INFO L226 Difference]: Without dead ends: 10455 [2022-03-01 15:43:03,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1048, Invalid=3374, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:43:03,871 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1224 mSDsluCounter, 6916 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:03,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1224 Valid, 7144 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-03-01 15:43:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5307. [2022-03-01 15:43:03,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.616660384470411) internal successors, (13884), 5306 states have internal predecessors, (13884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13884 transitions. [2022-03-01 15:43:03,958 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13884 transitions. Word has length 135 [2022-03-01 15:43:03,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:03,958 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13884 transitions. [2022-03-01 15:43:03,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13884 transitions. [2022-03-01 15:43:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:03,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:03,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:03,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-01 15:43:03,964 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash -823459541, now seen corresponding path program 240 times [2022-03-01 15:43:03,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:03,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737267931] [2022-03-01 15:43:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:04,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:04,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737267931] [2022-03-01 15:43:04,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737267931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:04,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:04,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:04,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467179372] [2022-03-01 15:43:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:04,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:04,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:04,317 INFO L87 Difference]: Start difference. First operand 5307 states and 13884 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:06,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:06,479 INFO L93 Difference]: Finished difference Result 10636 states and 27815 transitions. [2022-03-01 15:43:06,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:06,479 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:06,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:06,493 INFO L225 Difference]: With dead ends: 10636 [2022-03-01 15:43:06,493 INFO L226 Difference]: Without dead ends: 10370 [2022-03-01 15:43:06,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=858, Invalid=2802, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:06,494 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1150 mSDsluCounter, 6801 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 7033 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:06,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 7033 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2022-03-01 15:43:06,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5311. [2022-03-01 15:43:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6160075329566856) internal successors, (13891), 5310 states have internal predecessors, (13891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:06,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13891 transitions. [2022-03-01 15:43:06,570 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13891 transitions. Word has length 135 [2022-03-01 15:43:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:06,570 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13891 transitions. [2022-03-01 15:43:06,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13891 transitions. [2022-03-01 15:43:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:06,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:06,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:06,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-01 15:43:06,575 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:06,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:06,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1302659283, now seen corresponding path program 241 times [2022-03-01 15:43:06,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:06,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62805159] [2022-03-01 15:43:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:07,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:07,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62805159] [2022-03-01 15:43:07,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62805159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:07,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:07,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:07,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100907929] [2022-03-01 15:43:07,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:07,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:07,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:07,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:07,007 INFO L87 Difference]: Start difference. First operand 5311 states and 13891 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:09,073 INFO L93 Difference]: Finished difference Result 10574 states and 27649 transitions. [2022-03-01 15:43:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:43:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:09,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:09,089 INFO L225 Difference]: With dead ends: 10574 [2022-03-01 15:43:09,089 INFO L226 Difference]: Without dead ends: 10279 [2022-03-01 15:43:09,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=825, Invalid=2597, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:43:09,090 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1128 mSDsluCounter, 6714 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 6949 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:09,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 6949 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-01 15:43:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5279. [2022-03-01 15:43:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.61898446381205) internal successors, (13823), 5278 states have internal predecessors, (13823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13823 transitions. [2022-03-01 15:43:09,184 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13823 transitions. Word has length 135 [2022-03-01 15:43:09,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:09,184 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13823 transitions. [2022-03-01 15:43:09,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13823 transitions. [2022-03-01 15:43:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:09,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:09,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:09,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-01 15:43:09,190 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1508703591, now seen corresponding path program 242 times [2022-03-01 15:43:09,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:09,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856374548] [2022-03-01 15:43:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:09,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:09,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:09,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856374548] [2022-03-01 15:43:09,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856374548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:09,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:09,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:09,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094730420] [2022-03-01 15:43:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:09,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:09,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:09,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:09,595 INFO L87 Difference]: Start difference. First operand 5279 states and 13823 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:12,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:12,029 INFO L93 Difference]: Finished difference Result 10885 states and 28364 transitions. [2022-03-01 15:43:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:43:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:12,042 INFO L225 Difference]: With dead ends: 10885 [2022-03-01 15:43:12,043 INFO L226 Difference]: Without dead ends: 10464 [2022-03-01 15:43:12,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1424, Invalid=4276, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:43:12,043 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1609 mSDsluCounter, 7008 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 7233 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:12,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1609 Valid, 7233 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10464 states. [2022-03-01 15:43:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10464 to 5283. [2022-03-01 15:43:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.618326391518364) internal successors, (13830), 5282 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13830 transitions. [2022-03-01 15:43:12,129 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13830 transitions. Word has length 135 [2022-03-01 15:43:12,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:12,129 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13830 transitions. [2022-03-01 15:43:12,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13830 transitions. [2022-03-01 15:43:12,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:12,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:12,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:12,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-01 15:43:12,135 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:12,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:12,135 INFO L85 PathProgramCache]: Analyzing trace with hash -411483453, now seen corresponding path program 243 times [2022-03-01 15:43:12,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:12,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378692842] [2022-03-01 15:43:12,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:12,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:12,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:12,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378692842] [2022-03-01 15:43:12,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378692842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:12,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:12,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:12,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475613622] [2022-03-01 15:43:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:12,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:12,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:12,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:12,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:12,389 INFO L87 Difference]: Start difference. First operand 5283 states and 13830 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:14,829 INFO L93 Difference]: Finished difference Result 10695 states and 27933 transitions. [2022-03-01 15:43:14,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:43:14,830 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:14,843 INFO L225 Difference]: With dead ends: 10695 [2022-03-01 15:43:14,843 INFO L226 Difference]: Without dead ends: 10305 [2022-03-01 15:43:14,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1258, Invalid=3998, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:43:14,844 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1312 mSDsluCounter, 6251 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:14,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 6492 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:14,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2022-03-01 15:43:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 5295. [2022-03-01 15:43:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6163581412920287) internal successors, (13851), 5294 states have internal predecessors, (13851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13851 transitions. [2022-03-01 15:43:14,925 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13851 transitions. Word has length 135 [2022-03-01 15:43:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:14,925 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13851 transitions. [2022-03-01 15:43:14,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13851 transitions. [2022-03-01 15:43:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:14,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:14,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:14,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-01 15:43:14,930 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1556579657, now seen corresponding path program 244 times [2022-03-01 15:43:14,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:14,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004916863] [2022-03-01 15:43:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:15,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:15,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004916863] [2022-03-01 15:43:15,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004916863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:15,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:15,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:15,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275719873] [2022-03-01 15:43:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:15,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:15,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:15,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:15,333 INFO L87 Difference]: Start difference. First operand 5295 states and 13851 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:17,676 INFO L93 Difference]: Finished difference Result 10556 states and 27570 transitions. [2022-03-01 15:43:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:43:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:17,688 INFO L225 Difference]: With dead ends: 10556 [2022-03-01 15:43:17,688 INFO L226 Difference]: Without dead ends: 10259 [2022-03-01 15:43:17,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1038, Invalid=3384, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:43:17,688 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1227 mSDsluCounter, 7260 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 7472 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:17,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 7472 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-01 15:43:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5299. [2022-03-01 15:43:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6157040392600983) internal successors, (13858), 5298 states have internal predecessors, (13858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13858 transitions. [2022-03-01 15:43:17,766 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13858 transitions. Word has length 135 [2022-03-01 15:43:17,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:17,766 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13858 transitions. [2022-03-01 15:43:17,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13858 transitions. [2022-03-01 15:43:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:17,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:17,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:17,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-01 15:43:17,772 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:17,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:17,772 INFO L85 PathProgramCache]: Analyzing trace with hash 321809859, now seen corresponding path program 245 times [2022-03-01 15:43:17,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:17,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404477851] [2022-03-01 15:43:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:18,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:18,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404477851] [2022-03-01 15:43:18,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404477851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:18,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:18,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:18,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125624463] [2022-03-01 15:43:18,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:18,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:18,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:18,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:18,116 INFO L87 Difference]: Start difference. First operand 5299 states and 13858 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:20,018 INFO L93 Difference]: Finished difference Result 10464 states and 27338 transitions. [2022-03-01 15:43:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:20,019 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:20,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:20,035 INFO L225 Difference]: With dead ends: 10464 [2022-03-01 15:43:20,035 INFO L226 Difference]: Without dead ends: 10198 [2022-03-01 15:43:20,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:20,036 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1182 mSDsluCounter, 6752 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:20,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 6979 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-03-01 15:43:20,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5303. [2022-03-01 15:43:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.6150509241795548) internal successors, (13865), 5302 states have internal predecessors, (13865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13865 transitions. [2022-03-01 15:43:20,112 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13865 transitions. Word has length 135 [2022-03-01 15:43:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:20,112 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13865 transitions. [2022-03-01 15:43:20,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13865 transitions. [2022-03-01 15:43:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:20,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:20,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:20,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-01 15:43:20,117 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1847038613, now seen corresponding path program 246 times [2022-03-01 15:43:20,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:20,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124313951] [2022-03-01 15:43:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:20,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:20,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124313951] [2022-03-01 15:43:20,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124313951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:20,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:20,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:20,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409055078] [2022-03-01 15:43:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:20,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:20,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:20,389 INFO L87 Difference]: Start difference. First operand 5303 states and 13865 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:22,266 INFO L93 Difference]: Finished difference Result 10306 states and 26928 transitions. [2022-03-01 15:43:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:43:22,267 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:22,278 INFO L225 Difference]: With dead ends: 10306 [2022-03-01 15:43:22,278 INFO L226 Difference]: Without dead ends: 9947 [2022-03-01 15:43:22,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=801, Invalid=2505, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:43:22,278 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1109 mSDsluCounter, 6653 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 6883 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:22,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 6883 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:22,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2022-03-01 15:43:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5207. [2022-03-01 15:43:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 2.630234344986554) internal successors, (13693), 5206 states have internal predecessors, (13693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 13693 transitions. [2022-03-01 15:43:22,346 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 13693 transitions. Word has length 135 [2022-03-01 15:43:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:22,346 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 13693 transitions. [2022-03-01 15:43:22,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 13693 transitions. [2022-03-01 15:43:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:22,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:22,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:22,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-01 15:43:22,351 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:22,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash -687590931, now seen corresponding path program 247 times [2022-03-01 15:43:22,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:22,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788863820] [2022-03-01 15:43:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:22,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:22,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788863820] [2022-03-01 15:43:22,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788863820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:22,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:22,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:22,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115074186] [2022-03-01 15:43:22,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:22,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:22,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:22,676 INFO L87 Difference]: Start difference. First operand 5207 states and 13693 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:25,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:25,041 INFO L93 Difference]: Finished difference Result 10238 states and 26829 transitions. [2022-03-01 15:43:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 15:43:25,041 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:25,054 INFO L225 Difference]: With dead ends: 10238 [2022-03-01 15:43:25,054 INFO L226 Difference]: Without dead ends: 9863 [2022-03-01 15:43:25,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1166, Invalid=3664, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:43:25,055 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1138 mSDsluCounter, 6908 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:25,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 7188 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-03-01 15:43:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5447. [2022-03-01 15:43:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-03-01 15:43:25,132 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-03-01 15:43:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:25,132 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-03-01 15:43:25,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-03-01 15:43:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:25,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:25,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:25,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-01 15:43:25,137 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:25,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2089263093, now seen corresponding path program 248 times [2022-03-01 15:43:25,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:25,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251487993] [2022-03-01 15:43:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:25,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:25,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251487993] [2022-03-01 15:43:25,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251487993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:25,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:25,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:25,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889170800] [2022-03-01 15:43:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:25,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:25,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:25,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:25,398 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:27,554 INFO L93 Difference]: Finished difference Result 10286 states and 26945 transitions. [2022-03-01 15:43:27,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:43:27,554 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:27,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:27,565 INFO L225 Difference]: With dead ends: 10286 [2022-03-01 15:43:27,565 INFO L226 Difference]: Without dead ends: 9995 [2022-03-01 15:43:27,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:43:27,566 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1129 mSDsluCounter, 7186 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:27,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7454 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-03-01 15:43:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5451. [2022-03-01 15:43:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-01 15:43:27,636 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-01 15:43:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:27,636 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-01 15:43:27,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-01 15:43:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:27,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:27,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:27,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-01 15:43:27,641 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1913998175, now seen corresponding path program 249 times [2022-03-01 15:43:27,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:27,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643363775] [2022-03-01 15:43:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:27,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:27,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643363775] [2022-03-01 15:43:27,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643363775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:27,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:27,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:27,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682951140] [2022-03-01 15:43:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:27,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:27,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:27,904 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:29,504 INFO L93 Difference]: Finished difference Result 10172 states and 26639 transitions. [2022-03-01 15:43:29,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:43:29,504 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:29,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:29,517 INFO L225 Difference]: With dead ends: 10172 [2022-03-01 15:43:29,517 INFO L226 Difference]: Without dead ends: 9906 [2022-03-01 15:43:29,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=773, Invalid=2649, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:43:29,518 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1062 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 6371 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:29,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 6371 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:29,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9906 states. [2022-03-01 15:43:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9906 to 5455. [2022-03-01 15:43:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-01 15:43:29,599 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-01 15:43:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:29,599 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-01 15:43:29,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-01 15:43:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:29,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:29,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:29,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-01 15:43:29,604 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:29,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash -254850297, now seen corresponding path program 250 times [2022-03-01 15:43:29,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:29,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824797628] [2022-03-01 15:43:29,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:29,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:29,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:29,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824797628] [2022-03-01 15:43:29,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824797628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:29,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:29,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:29,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244807649] [2022-03-01 15:43:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:29,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:29,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:29,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:29,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:29,925 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:31,704 INFO L93 Difference]: Finished difference Result 10134 states and 26539 transitions. [2022-03-01 15:43:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:31,704 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:31,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:31,716 INFO L225 Difference]: With dead ends: 10134 [2022-03-01 15:43:31,717 INFO L226 Difference]: Without dead ends: 9851 [2022-03-01 15:43:31,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:31,717 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1027 mSDsluCounter, 7168 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 7437 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:31,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 7437 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:31,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2022-03-01 15:43:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 5435. [2022-03-01 15:43:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.633051159366949) internal successors, (14308), 5434 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14308 transitions. [2022-03-01 15:43:31,791 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14308 transitions. Word has length 135 [2022-03-01 15:43:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:31,791 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14308 transitions. [2022-03-01 15:43:31,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14308 transitions. [2022-03-01 15:43:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:31,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:31,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:31,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-01 15:43:31,797 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash -983817491, now seen corresponding path program 251 times [2022-03-01 15:43:31,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:31,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748891824] [2022-03-01 15:43:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:32,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:32,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748891824] [2022-03-01 15:43:32,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748891824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:32,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:32,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:32,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32906033] [2022-03-01 15:43:32,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:32,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:32,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:32,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:32,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:32,045 INFO L87 Difference]: Start difference. First operand 5435 states and 14308 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:33,927 INFO L93 Difference]: Finished difference Result 10294 states and 26967 transitions. [2022-03-01 15:43:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:43:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:33,940 INFO L225 Difference]: With dead ends: 10294 [2022-03-01 15:43:33,940 INFO L226 Difference]: Without dead ends: 10003 [2022-03-01 15:43:33,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1010, Invalid=3280, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:43:33,941 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1129 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:33,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7042 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-03-01 15:43:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5443. [2022-03-01 15:43:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-01 15:43:34,021 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-01 15:43:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:34,022 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-01 15:43:34,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-01 15:43:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:34,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:34,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:34,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-01 15:43:34,027 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1275523519, now seen corresponding path program 252 times [2022-03-01 15:43:34,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:34,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634283983] [2022-03-01 15:43:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:34,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:34,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634283983] [2022-03-01 15:43:34,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634283983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:34,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:34,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:34,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238704059] [2022-03-01 15:43:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:34,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:34,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:34,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:34,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:34,288 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:36,124 INFO L93 Difference]: Finished difference Result 10244 states and 26837 transitions. [2022-03-01 15:43:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:43:36,125 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:36,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:36,138 INFO L225 Difference]: With dead ends: 10244 [2022-03-01 15:43:36,138 INFO L226 Difference]: Without dead ends: 9978 [2022-03-01 15:43:36,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=801, Invalid=2739, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:43:36,139 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1044 mSDsluCounter, 7223 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 7473 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:36,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 7473 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2022-03-01 15:43:36,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 5447. [2022-03-01 15:43:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.631839882482556) internal successors, (14333), 5446 states have internal predecessors, (14333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14333 transitions. [2022-03-01 15:43:36,216 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14333 transitions. Word has length 135 [2022-03-01 15:43:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:36,216 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14333 transitions. [2022-03-01 15:43:36,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14333 transitions. [2022-03-01 15:43:36,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:36,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:36,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:36,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-01 15:43:36,222 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:36,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 850595305, now seen corresponding path program 253 times [2022-03-01 15:43:36,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:36,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341839621] [2022-03-01 15:43:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:36,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:36,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:36,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341839621] [2022-03-01 15:43:36,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341839621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:36,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:36,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:36,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678873361] [2022-03-01 15:43:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:36,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:36,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:36,467 INFO L87 Difference]: Start difference. First operand 5447 states and 14333 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:37,927 INFO L93 Difference]: Finished difference Result 10206 states and 26737 transitions. [2022-03-01 15:43:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:37,928 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:37,940 INFO L225 Difference]: With dead ends: 10206 [2022-03-01 15:43:37,941 INFO L226 Difference]: Without dead ends: 9935 [2022-03-01 15:43:37,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=839, Invalid=2821, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:37,941 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1040 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 6371 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:37,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 6371 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:43:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2022-03-01 15:43:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 5439. [2022-03-01 15:43:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-03-01 15:43:38,029 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-03-01 15:43:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:38,029 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-03-01 15:43:38,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-03-01 15:43:38,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:38,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:38,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:38,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-01 15:43:38,035 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:38,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1223375471, now seen corresponding path program 254 times [2022-03-01 15:43:38,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:38,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940629917] [2022-03-01 15:43:38,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:38,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:38,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:38,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940629917] [2022-03-01 15:43:38,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940629917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:38,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:38,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:38,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562151841] [2022-03-01 15:43:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:38,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:38,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:38,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:38,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:38,289 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:40,446 INFO L93 Difference]: Finished difference Result 10296 states and 26955 transitions. [2022-03-01 15:43:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:43:40,446 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:40,457 INFO L225 Difference]: With dead ends: 10296 [2022-03-01 15:43:40,458 INFO L226 Difference]: Without dead ends: 9999 [2022-03-01 15:43:40,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=961, Invalid=3199, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:43:40,458 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1113 mSDsluCounter, 6195 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 6456 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:40,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 6456 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-01 15:43:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5443. [2022-03-01 15:43:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-03-01 15:43:40,534 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-03-01 15:43:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:40,534 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-03-01 15:43:40,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-03-01 15:43:40,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:40,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:40,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:40,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-01 15:43:40,540 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:40,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:40,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1193202309, now seen corresponding path program 255 times [2022-03-01 15:43:40,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:40,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026573797] [2022-03-01 15:43:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:40,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:40,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:40,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026573797] [2022-03-01 15:43:40,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026573797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:40,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:40,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:40,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542738733] [2022-03-01 15:43:40,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:40,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:40,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:40,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:40,797 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:42,671 INFO L93 Difference]: Finished difference Result 10196 states and 26701 transitions. [2022-03-01 15:43:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:42,671 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:42,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:42,684 INFO L225 Difference]: With dead ends: 10196 [2022-03-01 15:43:42,685 INFO L226 Difference]: Without dead ends: 9930 [2022-03-01 15:43:42,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:42,685 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1061 mSDsluCounter, 6444 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 6710 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:42,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 6710 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:42,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9930 states. [2022-03-01 15:43:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9930 to 5447. [2022-03-01 15:43:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:42,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-03-01 15:43:42,764 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-03-01 15:43:42,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:42,764 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-03-01 15:43:42,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-03-01 15:43:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:42,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:42,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:42,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-01 15:43:42,770 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash 932916515, now seen corresponding path program 256 times [2022-03-01 15:43:42,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:42,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889579635] [2022-03-01 15:43:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:43,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:43,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889579635] [2022-03-01 15:43:43,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889579635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:43,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:43,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:43,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175881804] [2022-03-01 15:43:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:43,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:43,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:43,162 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:45,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:45,426 INFO L93 Difference]: Finished difference Result 10126 states and 26513 transitions. [2022-03-01 15:43:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:43:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:45,438 INFO L225 Difference]: With dead ends: 10126 [2022-03-01 15:43:45,438 INFO L226 Difference]: Without dead ends: 9839 [2022-03-01 15:43:45,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=807, Invalid=2733, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:43:45,439 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1043 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 6988 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:45,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 6988 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:43:45,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2022-03-01 15:43:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 5423. [2022-03-01 15:43:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.632792327554408) internal successors, (14275), 5422 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14275 transitions. [2022-03-01 15:43:45,516 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14275 transitions. Word has length 135 [2022-03-01 15:43:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:45,516 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14275 transitions. [2022-03-01 15:43:45,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14275 transitions. [2022-03-01 15:43:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:45,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:45,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:45,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-01 15:43:45,523 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1395064971, now seen corresponding path program 257 times [2022-03-01 15:43:45,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:45,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650733514] [2022-03-01 15:43:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:45,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:45,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650733514] [2022-03-01 15:43:45,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650733514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:45,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:45,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:45,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604153063] [2022-03-01 15:43:45,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:45,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:45,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:45,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:45,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:45,909 INFO L87 Difference]: Start difference. First operand 5423 states and 14275 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:48,364 INFO L93 Difference]: Finished difference Result 10342 states and 27099 transitions. [2022-03-01 15:43:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:43:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:48,377 INFO L225 Difference]: With dead ends: 10342 [2022-03-01 15:43:48,377 INFO L226 Difference]: Without dead ends: 10051 [2022-03-01 15:43:48,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=985, Invalid=3175, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:43:48,378 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1146 mSDsluCounter, 6746 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 7016 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:48,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 7016 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:48,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10051 states. [2022-03-01 15:43:48,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10051 to 5443. [2022-03-01 15:43:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-01 15:43:48,455 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-01 15:43:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:48,455 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-01 15:43:48,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-01 15:43:48,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:48,460 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:48,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:48,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-01 15:43:48,460 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:48,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1103358943, now seen corresponding path program 258 times [2022-03-01 15:43:48,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:48,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051819696] [2022-03-01 15:43:48,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:48,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:48,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:48,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051819696] [2022-03-01 15:43:48,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051819696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:48,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:48,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:48,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630844008] [2022-03-01 15:43:48,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:48,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:48,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:48,811 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:50,935 INFO L93 Difference]: Finished difference Result 10308 states and 27013 transitions. [2022-03-01 15:43:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:43:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:50,948 INFO L225 Difference]: With dead ends: 10308 [2022-03-01 15:43:50,948 INFO L226 Difference]: Without dead ends: 10042 [2022-03-01 15:43:50,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=794, Invalid=2746, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:43:50,948 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1062 mSDsluCounter, 7180 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:50,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 7431 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2022-03-01 15:43:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 5447. [2022-03-01 15:43:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.631839882482556) internal successors, (14333), 5446 states have internal predecessors, (14333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14333 transitions. [2022-03-01 15:43:51,032 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14333 transitions. Word has length 135 [2022-03-01 15:43:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:51,032 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14333 transitions. [2022-03-01 15:43:51,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14333 transitions. [2022-03-01 15:43:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:51,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:51,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:51,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-01 15:43:51,038 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:51,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1065489529, now seen corresponding path program 259 times [2022-03-01 15:43:51,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:51,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317696831] [2022-03-01 15:43:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:51,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:51,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:51,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317696831] [2022-03-01 15:43:51,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317696831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:51,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:51,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:51,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338670228] [2022-03-01 15:43:51,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:51,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:51,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:51,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:51,376 INFO L87 Difference]: Start difference. First operand 5447 states and 14333 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:53,486 INFO L93 Difference]: Finished difference Result 10270 states and 26913 transitions. [2022-03-01 15:43:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:53,500 INFO L225 Difference]: With dead ends: 10270 [2022-03-01 15:43:53,500 INFO L226 Difference]: Without dead ends: 9999 [2022-03-01 15:43:53,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=842, Invalid=2818, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:53,501 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1063 mSDsluCounter, 6729 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 7001 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:53,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 7001 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-01 15:43:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5439. [2022-03-01 15:43:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-03-01 15:43:53,601 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-03-01 15:43:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:53,602 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-03-01 15:43:53,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-03-01 15:43:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:53,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:53,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:53,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-01 15:43:53,608 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:53,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:53,609 INFO L85 PathProgramCache]: Analyzing trace with hash -692709363, now seen corresponding path program 260 times [2022-03-01 15:43:53,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:53,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4626370] [2022-03-01 15:43:53,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:53,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:53,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:53,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4626370] [2022-03-01 15:43:53,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4626370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:53,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:53,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:53,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119010179] [2022-03-01 15:43:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:53,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:53,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:53,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:53,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:53,964 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:56,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:56,116 INFO L93 Difference]: Finished difference Result 10440 states and 27351 transitions. [2022-03-01 15:43:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:43:56,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:56,129 INFO L225 Difference]: With dead ends: 10440 [2022-03-01 15:43:56,129 INFO L226 Difference]: Without dead ends: 10143 [2022-03-01 15:43:56,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=981, Invalid=3309, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:43:56,129 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1126 mSDsluCounter, 7299 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7540 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:56,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7540 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:43:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10143 states. [2022-03-01 15:43:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10143 to 5443. [2022-03-01 15:43:56,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-03-01 15:43:56,204 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-03-01 15:43:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:56,204 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-03-01 15:43:56,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-03-01 15:43:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:56,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:56,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:56,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-01 15:43:56,210 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:56,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1185680153, now seen corresponding path program 261 times [2022-03-01 15:43:56,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:56,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584563378] [2022-03-01 15:43:56,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:56,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:56,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584563378] [2022-03-01 15:43:56,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584563378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:56,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:56,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:56,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726054158] [2022-03-01 15:43:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:56,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:56,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:56,487 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:58,262 INFO L93 Difference]: Finished difference Result 10324 states and 27053 transitions. [2022-03-01 15:43:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:43:58,263 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:43:58,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:58,275 INFO L225 Difference]: With dead ends: 10324 [2022-03-01 15:43:58,276 INFO L226 Difference]: Without dead ends: 10058 [2022-03-01 15:43:58,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=824, Invalid=2836, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:43:58,276 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1065 mSDsluCounter, 6849 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 7105 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:58,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 7105 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:43:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-03-01 15:43:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 5447. [2022-03-01 15:43:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-03-01 15:43:58,358 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-03-01 15:43:58,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:58,358 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-03-01 15:43:58,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:58,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-03-01 15:43:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:43:58,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:58,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:58,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-01 15:43:58,364 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:43:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash -983168319, now seen corresponding path program 262 times [2022-03-01 15:43:58,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:58,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945816614] [2022-03-01 15:43:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:58,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:58,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:58,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945816614] [2022-03-01 15:43:58,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945816614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:58,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:58,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:43:58,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81279532] [2022-03-01 15:43:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:58,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:43:58,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:58,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:43:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:43:58,733 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:00,452 INFO L93 Difference]: Finished difference Result 10270 states and 26909 transitions. [2022-03-01 15:44:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:44:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:00,465 INFO L225 Difference]: With dead ends: 10270 [2022-03-01 15:44:00,465 INFO L226 Difference]: Without dead ends: 9995 [2022-03-01 15:44:00,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=814, Invalid=2726, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:44:00,466 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1039 mSDsluCounter, 6356 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 6630 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:00,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 6630 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-03-01 15:44:00,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5435. [2022-03-01 15:44:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.632315053367685) internal successors, (14304), 5434 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14304 transitions. [2022-03-01 15:44:00,544 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14304 transitions. Word has length 135 [2022-03-01 15:44:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:00,545 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14304 transitions. [2022-03-01 15:44:00,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:00,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14304 transitions. [2022-03-01 15:44:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:00,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:00,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:00,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-01 15:44:00,550 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:00,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:00,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1602474371, now seen corresponding path program 263 times [2022-03-01 15:44:00,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:00,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271314398] [2022-03-01 15:44:00,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:00,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:00,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:00,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271314398] [2022-03-01 15:44:00,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271314398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:00,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:00,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:00,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902855746] [2022-03-01 15:44:00,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:00,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:00,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:00,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:00,965 INFO L87 Difference]: Start difference. First operand 5435 states and 14304 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:03,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:03,859 INFO L93 Difference]: Finished difference Result 10463 states and 27383 transitions. [2022-03-01 15:44:03,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:44:03,859 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:03,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:03,874 INFO L225 Difference]: With dead ends: 10463 [2022-03-01 15:44:03,874 INFO L226 Difference]: Without dead ends: 10073 [2022-03-01 15:44:03,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 15:44:03,875 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1201 mSDsluCounter, 6996 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:03,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 7238 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:44:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10073 states. [2022-03-01 15:44:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10073 to 5447. [2022-03-01 15:44:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.630370914432611) internal successors, (14325), 5446 states have internal predecessors, (14325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14325 transitions. [2022-03-01 15:44:04,004 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14325 transitions. Word has length 135 [2022-03-01 15:44:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:04,004 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14325 transitions. [2022-03-01 15:44:04,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14325 transitions. [2022-03-01 15:44:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:04,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:04,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:04,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-01 15:44:04,010 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:04,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1995939407, now seen corresponding path program 264 times [2022-03-01 15:44:04,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:04,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574315226] [2022-03-01 15:44:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:04,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:04,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:04,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574315226] [2022-03-01 15:44:04,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574315226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:04,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:04,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:04,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780810955] [2022-03-01 15:44:04,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:04,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:04,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:04,389 INFO L87 Difference]: Start difference. First operand 5447 states and 14325 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:06,791 INFO L93 Difference]: Finished difference Result 10320 states and 27009 transitions. [2022-03-01 15:44:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:44:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:06,805 INFO L225 Difference]: With dead ends: 10320 [2022-03-01 15:44:06,806 INFO L226 Difference]: Without dead ends: 10023 [2022-03-01 15:44:06,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1006, Invalid=3416, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:44:06,806 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1145 mSDsluCounter, 6905 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:06,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 7156 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:06,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10023 states. [2022-03-01 15:44:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10023 to 5451. [2022-03-01 15:44:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.629724770642202) internal successors, (14332), 5450 states have internal predecessors, (14332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14332 transitions. [2022-03-01 15:44:06,898 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14332 transitions. Word has length 135 [2022-03-01 15:44:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:06,898 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14332 transitions. [2022-03-01 15:44:06,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14332 transitions. [2022-03-01 15:44:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:06,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:06,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:06,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-01 15:44:06,905 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash -117549891, now seen corresponding path program 265 times [2022-03-01 15:44:06,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:06,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786412613] [2022-03-01 15:44:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:07,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:07,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786412613] [2022-03-01 15:44:07,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786412613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:07,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:07,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:07,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749100318] [2022-03-01 15:44:07,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:07,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:07,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:07,213 INFO L87 Difference]: Start difference. First operand 5451 states and 14332 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:08,840 INFO L93 Difference]: Finished difference Result 10220 states and 26755 transitions. [2022-03-01 15:44:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:08,895 INFO L225 Difference]: With dead ends: 10220 [2022-03-01 15:44:08,896 INFO L226 Difference]: Without dead ends: 9954 [2022-03-01 15:44:08,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=818, Invalid=2842, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:08,896 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1078 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 7029 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:08,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 7029 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9954 states. [2022-03-01 15:44:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9954 to 5455. [2022-03-01 15:44:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.629079574624129) internal successors, (14339), 5454 states have internal predecessors, (14339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:08,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14339 transitions. [2022-03-01 15:44:08,968 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14339 transitions. Word has length 135 [2022-03-01 15:44:08,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:08,969 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14339 transitions. [2022-03-01 15:44:08,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:08,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14339 transitions. [2022-03-01 15:44:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:08,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:08,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:08,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-01 15:44:08,974 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:08,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2008568933, now seen corresponding path program 266 times [2022-03-01 15:44:08,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:08,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315705714] [2022-03-01 15:44:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:09,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:09,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315705714] [2022-03-01 15:44:09,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315705714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:09,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:09,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:09,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381126868] [2022-03-01 15:44:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:09,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:09,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:09,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:09,419 INFO L87 Difference]: Start difference. First operand 5455 states and 14339 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:11,647 INFO L93 Difference]: Finished difference Result 10134 states and 26523 transitions. [2022-03-01 15:44:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:44:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:11,662 INFO L225 Difference]: With dead ends: 10134 [2022-03-01 15:44:11,662 INFO L226 Difference]: Without dead ends: 9803 [2022-03-01 15:44:11,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=783, Invalid=2639, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:44:11,663 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1034 mSDsluCounter, 6680 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 6946 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:11,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 6946 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2022-03-01 15:44:11,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 5387. [2022-03-01 15:44:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 5386 states have (on average 2.632008911994059) internal successors, (14176), 5386 states have internal predecessors, (14176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 14176 transitions. [2022-03-01 15:44:11,762 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 14176 transitions. Word has length 135 [2022-03-01 15:44:11,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:11,762 INFO L470 AbstractCegarLoop]: Abstraction has 5387 states and 14176 transitions. [2022-03-01 15:44:11,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:11,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 14176 transitions. [2022-03-01 15:44:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:11,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:11,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:11,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-01 15:44:11,768 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1507648237, now seen corresponding path program 267 times [2022-03-01 15:44:11,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:11,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769203939] [2022-03-01 15:44:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:12,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:12,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769203939] [2022-03-01 15:44:12,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769203939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:12,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:12,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:12,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020948839] [2022-03-01 15:44:12,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:12,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:12,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:12,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:12,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:12,144 INFO L87 Difference]: Start difference. First operand 5387 states and 14176 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:14,067 INFO L93 Difference]: Finished difference Result 10326 states and 27055 transitions. [2022-03-01 15:44:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:44:14,068 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:14,078 INFO L225 Difference]: With dead ends: 10326 [2022-03-01 15:44:14,078 INFO L226 Difference]: Without dead ends: 10035 [2022-03-01 15:44:14,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=963, Invalid=3069, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:44:14,078 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1128 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 7333 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:14,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 7333 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10035 states. [2022-03-01 15:44:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10035 to 5411. [2022-03-01 15:44:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.6317929759704253) internal successors, (14238), 5410 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14238 transitions. [2022-03-01 15:44:14,146 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14238 transitions. Word has length 135 [2022-03-01 15:44:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:14,146 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14238 transitions. [2022-03-01 15:44:14,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14238 transitions. [2022-03-01 15:44:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:14,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:14,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:14,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-01 15:44:14,152 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:14,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1215942209, now seen corresponding path program 268 times [2022-03-01 15:44:14,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:14,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290357462] [2022-03-01 15:44:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:14,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:14,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290357462] [2022-03-01 15:44:14,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290357462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:14,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:14,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:14,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776799490] [2022-03-01 15:44:14,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:14,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:14,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:14,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:14,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:14,434 INFO L87 Difference]: Start difference. First operand 5411 states and 14238 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:16,034 INFO L93 Difference]: Finished difference Result 10340 states and 27085 transitions. [2022-03-01 15:44:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:44:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:16,049 INFO L225 Difference]: With dead ends: 10340 [2022-03-01 15:44:16,049 INFO L226 Difference]: Without dead ends: 10074 [2022-03-01 15:44:16,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=788, Invalid=2752, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:44:16,050 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1094 mSDsluCounter, 6789 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 7046 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:16,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1094 Valid, 7046 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2022-03-01 15:44:16,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5415. [2022-03-01 15:44:16,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.631141485038788) internal successors, (14245), 5414 states have internal predecessors, (14245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14245 transitions. [2022-03-01 15:44:16,142 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14245 transitions. Word has length 135 [2022-03-01 15:44:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:16,142 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14245 transitions. [2022-03-01 15:44:16,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14245 transitions. [2022-03-01 15:44:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:16,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:16,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:16,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-01 15:44:16,148 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash -952906263, now seen corresponding path program 269 times [2022-03-01 15:44:16,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:16,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299598346] [2022-03-01 15:44:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:16,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:16,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299598346] [2022-03-01 15:44:16,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299598346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:16,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:16,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:16,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889790249] [2022-03-01 15:44:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:16,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:16,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:16,515 INFO L87 Difference]: Start difference. First operand 5415 states and 14245 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:18,678 INFO L93 Difference]: Finished difference Result 10302 states and 26985 transitions. [2022-03-01 15:44:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:18,678 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:18,689 INFO L225 Difference]: With dead ends: 10302 [2022-03-01 15:44:18,689 INFO L226 Difference]: Without dead ends: 10031 [2022-03-01 15:44:18,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:18,689 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1077 mSDsluCounter, 6690 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 6958 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:18,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 6958 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-03-01 15:44:18,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 5407. [2022-03-01 15:44:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.6317055123936366) internal successors, (14227), 5406 states have internal predecessors, (14227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14227 transitions. [2022-03-01 15:44:18,754 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14227 transitions. Word has length 135 [2022-03-01 15:44:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:18,754 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14227 transitions. [2022-03-01 15:44:18,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14227 transitions. [2022-03-01 15:44:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:18,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:18,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:18,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-01 15:44:18,760 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -580126097, now seen corresponding path program 270 times [2022-03-01 15:44:18,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:18,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710300022] [2022-03-01 15:44:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:18,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:19,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:19,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710300022] [2022-03-01 15:44:19,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710300022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:19,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:19,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:19,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18103410] [2022-03-01 15:44:19,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:19,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:19,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:19,140 INFO L87 Difference]: Start difference. First operand 5407 states and 14227 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:21,535 INFO L93 Difference]: Finished difference Result 10472 states and 27423 transitions. [2022-03-01 15:44:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:44:21,536 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:21,549 INFO L225 Difference]: With dead ends: 10472 [2022-03-01 15:44:21,549 INFO L226 Difference]: Without dead ends: 10175 [2022-03-01 15:44:21,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:44:21,550 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1143 mSDsluCounter, 6539 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 6794 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:21,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 6794 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10175 states. [2022-03-01 15:44:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10175 to 5411. [2022-03-01 15:44:21,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.631053604436229) internal successors, (14234), 5410 states have internal predecessors, (14234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14234 transitions. [2022-03-01 15:44:21,627 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14234 transitions. Word has length 135 [2022-03-01 15:44:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:21,627 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14234 transitions. [2022-03-01 15:44:21,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:21,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14234 transitions. [2022-03-01 15:44:21,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:21,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:21,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:21,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-01 15:44:21,633 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:21,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1298263419, now seen corresponding path program 271 times [2022-03-01 15:44:21,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:21,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68353181] [2022-03-01 15:44:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:22,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:22,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68353181] [2022-03-01 15:44:22,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68353181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:22,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:22,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:22,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230831548] [2022-03-01 15:44:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:22,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:22,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:22,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:22,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:22,010 INFO L87 Difference]: Start difference. First operand 5411 states and 14234 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:24,174 INFO L93 Difference]: Finished difference Result 10356 states and 27125 transitions. [2022-03-01 15:44:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:24,185 INFO L225 Difference]: With dead ends: 10356 [2022-03-01 15:44:24,185 INFO L226 Difference]: Without dead ends: 10090 [2022-03-01 15:44:24,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:24,186 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1070 mSDsluCounter, 7173 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 7423 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:24,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 7423 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2022-03-01 15:44:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5415. [2022-03-01 15:44:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.630402659770964) internal successors, (14241), 5414 states have internal predecessors, (14241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14241 transitions. [2022-03-01 15:44:24,250 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14241 transitions. Word has length 135 [2022-03-01 15:44:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:24,250 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14241 transitions. [2022-03-01 15:44:24,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14241 transitions. [2022-03-01 15:44:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:24,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:24,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:24,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-01 15:44:24,256 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash -870585053, now seen corresponding path program 272 times [2022-03-01 15:44:24,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:24,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955838358] [2022-03-01 15:44:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:24,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:24,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:24,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955838358] [2022-03-01 15:44:24,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955838358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:24,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:24,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:24,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452037727] [2022-03-01 15:44:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:24,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:24,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:24,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:24,636 INFO L87 Difference]: Start difference. First operand 5415 states and 14241 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:26,706 INFO L93 Difference]: Finished difference Result 10302 states and 26981 transitions. [2022-03-01 15:44:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:44:26,706 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:26,719 INFO L225 Difference]: With dead ends: 10302 [2022-03-01 15:44:26,719 INFO L226 Difference]: Without dead ends: 10027 [2022-03-01 15:44:26,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=817, Invalid=2723, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:44:26,720 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1055 mSDsluCounter, 6673 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 6938 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:26,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 6938 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10027 states. [2022-03-01 15:44:26,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10027 to 5403. [2022-03-01 15:44:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5402 states have (on average 2.6316179192891522) internal successors, (14216), 5402 states have internal predecessors, (14216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14216 transitions. [2022-03-01 15:44:26,794 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14216 transitions. Word has length 135 [2022-03-01 15:44:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:26,794 INFO L470 AbstractCegarLoop]: Abstraction has 5403 states and 14216 transitions. [2022-03-01 15:44:26,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14216 transitions. [2022-03-01 15:44:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:26,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:26,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:26,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-01 15:44:26,820 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:26,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1489891105, now seen corresponding path program 273 times [2022-03-01 15:44:26,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:26,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703778607] [2022-03-01 15:44:26,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:26,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:27,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:27,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703778607] [2022-03-01 15:44:27,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703778607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:27,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:27,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:27,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074392450] [2022-03-01 15:44:27,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:27,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:27,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:27,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:27,150 INFO L87 Difference]: Start difference. First operand 5403 states and 14216 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:29,173 INFO L93 Difference]: Finished difference Result 10639 states and 27851 transitions. [2022-03-01 15:44:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:44:29,174 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:29,184 INFO L225 Difference]: With dead ends: 10639 [2022-03-01 15:44:29,184 INFO L226 Difference]: Without dead ends: 10249 [2022-03-01 15:44:29,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1180, Invalid=3932, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:44:29,185 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1202 mSDsluCounter, 7409 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 7641 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:29,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 7641 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:29,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2022-03-01 15:44:29,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 5415. [2022-03-01 15:44:29,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.62966383450314) internal successors, (14237), 5414 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:29,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14237 transitions. [2022-03-01 15:44:29,252 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14237 transitions. Word has length 135 [2022-03-01 15:44:29,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:29,253 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14237 transitions. [2022-03-01 15:44:29,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:29,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14237 transitions. [2022-03-01 15:44:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:29,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:29,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:29,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-01 15:44:29,258 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:29,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1883356141, now seen corresponding path program 274 times [2022-03-01 15:44:29,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:29,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853302936] [2022-03-01 15:44:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:29,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:29,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:29,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853302936] [2022-03-01 15:44:29,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853302936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:29,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:29,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:29,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057276941] [2022-03-01 15:44:29,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:29,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:29,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:29,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:29,549 INFO L87 Difference]: Start difference. First operand 5415 states and 14237 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:31,617 INFO L93 Difference]: Finished difference Result 10488 states and 27455 transitions. [2022-03-01 15:44:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:44:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:31,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:31,632 INFO L225 Difference]: With dead ends: 10488 [2022-03-01 15:44:31,632 INFO L226 Difference]: Without dead ends: 10191 [2022-03-01 15:44:31,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=996, Invalid=3426, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:44:31,633 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1129 mSDsluCounter, 7689 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7921 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:31,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7921 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10191 states. [2022-03-01 15:44:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10191 to 5419. [2022-03-01 15:44:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 2.629014396456257) internal successors, (14244), 5418 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 14244 transitions. [2022-03-01 15:44:31,715 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 14244 transitions. Word has length 135 [2022-03-01 15:44:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:31,715 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 14244 transitions. [2022-03-01 15:44:31,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 14244 transitions. [2022-03-01 15:44:31,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:31,720 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:31,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:31,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-01 15:44:31,720 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:31,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:31,721 INFO L85 PathProgramCache]: Analyzing trace with hash -4966625, now seen corresponding path program 275 times [2022-03-01 15:44:31,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:31,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141686560] [2022-03-01 15:44:31,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:31,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:32,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:32,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141686560] [2022-03-01 15:44:32,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141686560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:32,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:32,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:32,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449047678] [2022-03-01 15:44:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:32,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:32,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:32,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:32,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:32,067 INFO L87 Difference]: Start difference. First operand 5419 states and 14244 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:33,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:33,817 INFO L93 Difference]: Finished difference Result 10372 states and 27157 transitions. [2022-03-01 15:44:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:33,817 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:33,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:33,829 INFO L225 Difference]: With dead ends: 10372 [2022-03-01 15:44:33,829 INFO L226 Difference]: Without dead ends: 10106 [2022-03-01 15:44:33,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=822, Invalid=2838, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:33,829 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1064 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:33,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 6673 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:33,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2022-03-01 15:44:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 5423. [2022-03-01 15:44:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.6283659166359277) internal successors, (14251), 5422 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14251 transitions. [2022-03-01 15:44:33,919 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14251 transitions. Word has length 135 [2022-03-01 15:44:33,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:33,919 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14251 transitions. [2022-03-01 15:44:33,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:33,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14251 transitions. [2022-03-01 15:44:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:33,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:33,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:33,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-01 15:44:33,929 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2121152199, now seen corresponding path program 276 times [2022-03-01 15:44:33,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:33,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542313701] [2022-03-01 15:44:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:34,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:34,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542313701] [2022-03-01 15:44:34,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542313701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:34,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:34,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:34,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342743992] [2022-03-01 15:44:34,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:34,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:34,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:34,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:34,309 INFO L87 Difference]: Start difference. First operand 5423 states and 14251 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:36,028 INFO L93 Difference]: Finished difference Result 10310 states and 26991 transitions. [2022-03-01 15:44:36,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:44:36,029 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:36,042 INFO L225 Difference]: With dead ends: 10310 [2022-03-01 15:44:36,043 INFO L226 Difference]: Without dead ends: 10015 [2022-03-01 15:44:36,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=791, Invalid=2631, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:44:36,043 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1051 mSDsluCounter, 6660 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 6923 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:36,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 6923 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-03-01 15:44:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5391. [2022-03-01 15:44:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 2.6313543599257887) internal successors, (14183), 5390 states have internal predecessors, (14183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 14183 transitions. [2022-03-01 15:44:36,154 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 14183 transitions. Word has length 135 [2022-03-01 15:44:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:36,155 INFO L470 AbstractCegarLoop]: Abstraction has 5391 states and 14183 transitions. [2022-03-01 15:44:36,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 14183 transitions. [2022-03-01 15:44:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:36,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:36,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:36,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-01 15:44:36,163 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -690210675, now seen corresponding path program 277 times [2022-03-01 15:44:36,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:36,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845795979] [2022-03-01 15:44:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:36,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:36,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:36,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845795979] [2022-03-01 15:44:36,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845795979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:36,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:36,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:36,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382667006] [2022-03-01 15:44:36,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:36,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:36,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:36,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:36,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:36,536 INFO L87 Difference]: Start difference. First operand 5391 states and 14183 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:39,543 INFO L93 Difference]: Finished difference Result 10673 states and 27845 transitions. [2022-03-01 15:44:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:44:39,543 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:39,556 INFO L225 Difference]: With dead ends: 10673 [2022-03-01 15:44:39,556 INFO L226 Difference]: Without dead ends: 10252 [2022-03-01 15:44:39,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1359, Invalid=4341, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:44:39,557 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1454 mSDsluCounter, 7520 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 7745 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:39,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1454 Valid, 7745 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10252 states. [2022-03-01 15:44:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10252 to 5395. [2022-03-01 15:44:39,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5395 states, 5394 states have (on average 2.6307007786429364) internal successors, (14190), 5394 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 14190 transitions. [2022-03-01 15:44:39,643 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 14190 transitions. Word has length 135 [2022-03-01 15:44:39,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:39,643 INFO L470 AbstractCegarLoop]: Abstraction has 5395 states and 14190 transitions. [2022-03-01 15:44:39,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:39,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 14190 transitions. [2022-03-01 15:44:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:39,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:39,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:39,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-01 15:44:39,649 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:39,649 INFO L85 PathProgramCache]: Analyzing trace with hash 407009463, now seen corresponding path program 278 times [2022-03-01 15:44:39,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:39,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865541202] [2022-03-01 15:44:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:40,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:40,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865541202] [2022-03-01 15:44:40,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865541202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:40,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:40,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:40,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63480221] [2022-03-01 15:44:40,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:40,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:40,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:40,069 INFO L87 Difference]: Start difference. First operand 5395 states and 14190 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:42,917 INFO L93 Difference]: Finished difference Result 10471 states and 27385 transitions. [2022-03-01 15:44:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:44:42,918 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:42,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:42,930 INFO L225 Difference]: With dead ends: 10471 [2022-03-01 15:44:42,931 INFO L226 Difference]: Without dead ends: 10081 [2022-03-01 15:44:42,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1196, Invalid=4060, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:44:42,931 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1209 mSDsluCounter, 7022 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:42,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 7265 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10081 states. [2022-03-01 15:44:43,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10081 to 5407. [2022-03-01 15:44:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.628745837957825) internal successors, (14211), 5406 states have internal predecessors, (14211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14211 transitions. [2022-03-01 15:44:43,012 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14211 transitions. Word has length 135 [2022-03-01 15:44:43,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:43,012 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14211 transitions. [2022-03-01 15:44:43,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14211 transitions. [2022-03-01 15:44:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:43,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:43,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:43,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-01 15:44:43,018 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash -738086741, now seen corresponding path program 279 times [2022-03-01 15:44:43,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:43,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839931942] [2022-03-01 15:44:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:43,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:43,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:43,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839931942] [2022-03-01 15:44:43,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839931942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:43,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:43,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:43,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003700602] [2022-03-01 15:44:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:43,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:43,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:43,398 INFO L87 Difference]: Start difference. First operand 5407 states and 14211 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:45,264 INFO L93 Difference]: Finished difference Result 10328 states and 27011 transitions. [2022-03-01 15:44:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:44:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:45,277 INFO L225 Difference]: With dead ends: 10328 [2022-03-01 15:44:45,277 INFO L226 Difference]: Without dead ends: 10031 [2022-03-01 15:44:45,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=986, Invalid=3436, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:44:45,278 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1124 mSDsluCounter, 7277 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 7515 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:45,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 7515 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:45,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-03-01 15:44:45,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 5411. [2022-03-01 15:44:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.6280961182994456) internal successors, (14218), 5410 states have internal predecessors, (14218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14218 transitions. [2022-03-01 15:44:45,355 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14218 transitions. Word has length 135 [2022-03-01 15:44:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:45,355 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14218 transitions. [2022-03-01 15:44:45,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14218 transitions. [2022-03-01 15:44:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:45,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:45,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:45,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-01 15:44:45,360 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1140302775, now seen corresponding path program 280 times [2022-03-01 15:44:45,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:45,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012596670] [2022-03-01 15:44:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:45,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:45,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012596670] [2022-03-01 15:44:45,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012596670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:45,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:45,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:45,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633365113] [2022-03-01 15:44:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:45,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:45,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:45,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:45,613 INFO L87 Difference]: Start difference. First operand 5411 states and 14218 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:47,305 INFO L93 Difference]: Finished difference Result 10228 states and 26757 transitions. [2022-03-01 15:44:47,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:47,306 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:47,319 INFO L225 Difference]: With dead ends: 10228 [2022-03-01 15:44:47,319 INFO L226 Difference]: Without dead ends: 9962 [2022-03-01 15:44:47,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=811, Invalid=2849, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:47,320 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1067 mSDsluCounter, 6427 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:47,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 6684 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9962 states. [2022-03-01 15:44:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9962 to 5415. [2022-03-01 15:44:47,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.6274473586996674) internal successors, (14225), 5414 states have internal predecessors, (14225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14225 transitions. [2022-03-01 15:44:47,396 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14225 transitions. Word has length 135 [2022-03-01 15:44:47,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:47,396 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14225 transitions. [2022-03-01 15:44:47,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:47,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14225 transitions. [2022-03-01 15:44:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:47,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:47,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:47,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-01 15:44:47,402 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1028545697, now seen corresponding path program 281 times [2022-03-01 15:44:47,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:47,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492014117] [2022-03-01 15:44:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:47,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:47,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492014117] [2022-03-01 15:44:47,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492014117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:47,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:47,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:47,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429971972] [2022-03-01 15:44:47,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:47,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:47,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:47,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:47,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:47,716 INFO L87 Difference]: Start difference. First operand 5415 states and 14225 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:49,140 INFO L93 Difference]: Finished difference Result 10094 states and 26409 transitions. [2022-03-01 15:44:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:44:49,140 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:49,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:49,153 INFO L225 Difference]: With dead ends: 10094 [2022-03-01 15:44:49,154 INFO L226 Difference]: Without dead ends: 9791 [2022-03-01 15:44:49,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=771, Invalid=2535, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:44:49,154 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1028 mSDsluCounter, 6268 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 6535 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:49,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 6535 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:44:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9791 states. [2022-03-01 15:44:49,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9791 to 5375. [2022-03-01 15:44:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6317454410122814) internal successors, (14143), 5374 states have internal predecessors, (14143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14143 transitions. [2022-03-01 15:44:49,229 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14143 transitions. Word has length 135 [2022-03-01 15:44:49,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:49,229 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14143 transitions. [2022-03-01 15:44:49,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:49,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14143 transitions. [2022-03-01 15:44:49,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:49,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:49,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:49,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-01 15:44:49,235 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1861660533, now seen corresponding path program 282 times [2022-03-01 15:44:49,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:49,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474385655] [2022-03-01 15:44:49,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:49,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:49,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:49,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474385655] [2022-03-01 15:44:49,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474385655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:49,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:49,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:49,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062207665] [2022-03-01 15:44:49,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:49,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:49,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:49,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:49,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:49,489 INFO L87 Difference]: Start difference. First operand 5375 states and 14143 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:51,368 INFO L93 Difference]: Finished difference Result 10574 states and 27737 transitions. [2022-03-01 15:44:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:44:51,368 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:51,382 INFO L225 Difference]: With dead ends: 10574 [2022-03-01 15:44:51,382 INFO L226 Difference]: Without dead ends: 10283 [2022-03-01 15:44:51,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=963, Invalid=3069, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:44:51,383 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1146 mSDsluCounter, 6084 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:51,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 6367 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:44:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-03-01 15:44:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 5451. [2022-03-01 15:44:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:51,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-01 15:44:51,461 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-01 15:44:51,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:51,461 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-01 15:44:51,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:51,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-01 15:44:51,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:51,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:51,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:51,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-01 15:44:51,466 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:51,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2141600735, now seen corresponding path program 283 times [2022-03-01 15:44:51,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:51,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767570049] [2022-03-01 15:44:51,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:51,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:51,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:51,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767570049] [2022-03-01 15:44:51,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767570049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:51,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:51,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:51,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725104968] [2022-03-01 15:44:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:51,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:51,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:51,773 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:53,648 INFO L93 Difference]: Finished difference Result 10588 states and 27767 transitions. [2022-03-01 15:44:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:44:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:53,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:53,662 INFO L225 Difference]: With dead ends: 10588 [2022-03-01 15:44:53,662 INFO L226 Difference]: Without dead ends: 10322 [2022-03-01 15:44:53,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=791, Invalid=2749, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:44:53,663 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1079 mSDsluCounter, 6513 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:53,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 6785 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2022-03-01 15:44:53,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 5455. [2022-03-01 15:44:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-01 15:44:53,742 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-01 15:44:53,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:53,742 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-01 15:44:53,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-01 15:44:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:53,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:53,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:53,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-01 15:44:53,748 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:53,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:53,748 INFO L85 PathProgramCache]: Analyzing trace with hash -27247737, now seen corresponding path program 284 times [2022-03-01 15:44:53,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:53,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128163777] [2022-03-01 15:44:53,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:53,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:54,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:54,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128163777] [2022-03-01 15:44:54,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128163777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:54,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:54,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:54,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621522054] [2022-03-01 15:44:54,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:54,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:54,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:54,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:54,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:54,180 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:56,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:56,361 INFO L93 Difference]: Finished difference Result 10550 states and 27667 transitions. [2022-03-01 15:44:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:44:56,361 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:56,374 INFO L225 Difference]: With dead ends: 10550 [2022-03-01 15:44:56,374 INFO L226 Difference]: Without dead ends: 10279 [2022-03-01 15:44:56,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=845, Invalid=2815, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:44:56,375 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1070 mSDsluCounter, 7170 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:56,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 7438 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-01 15:44:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5447. [2022-03-01 15:44:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6325743665075283) internal successors, (14337), 5446 states have internal predecessors, (14337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14337 transitions. [2022-03-01 15:44:56,456 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14337 transitions. Word has length 135 [2022-03-01 15:44:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:56,456 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14337 transitions. [2022-03-01 15:44:56,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14337 transitions. [2022-03-01 15:44:56,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:56,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:56,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:56,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-01 15:44:56,462 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:56,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:56,462 INFO L85 PathProgramCache]: Analyzing trace with hash 345532429, now seen corresponding path program 285 times [2022-03-01 15:44:56,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:56,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715394600] [2022-03-01 15:44:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:56,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:56,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:56,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715394600] [2022-03-01 15:44:56,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715394600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:56,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:56,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:56,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583133557] [2022-03-01 15:44:56,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:56,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:56,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:56,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:56,854 INFO L87 Difference]: Start difference. First operand 5447 states and 14337 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:59,271 INFO L93 Difference]: Finished difference Result 10720 states and 28105 transitions. [2022-03-01 15:44:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:44:59,272 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:44:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:59,285 INFO L225 Difference]: With dead ends: 10720 [2022-03-01 15:44:59,285 INFO L226 Difference]: Without dead ends: 10423 [2022-03-01 15:44:59,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=962, Invalid=3328, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:44:59,286 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1172 mSDsluCounter, 6995 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 7250 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:59,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 7250 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:44:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-01 15:44:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5451. [2022-03-01 15:44:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6319266055045873) internal successors, (14344), 5450 states have internal predecessors, (14344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:59,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14344 transitions. [2022-03-01 15:44:59,366 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14344 transitions. Word has length 135 [2022-03-01 15:44:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:59,366 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14344 transitions. [2022-03-01 15:44:59,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14344 transitions. [2022-03-01 15:44:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:44:59,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:59,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:59,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-01 15:44:59,372 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:44:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2071045351, now seen corresponding path program 286 times [2022-03-01 15:44:59,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:59,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357093589] [2022-03-01 15:44:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:59,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:59,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:59,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357093589] [2022-03-01 15:44:59,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357093589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:59,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:59,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:44:59,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332962084] [2022-03-01 15:44:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:59,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:44:59,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:59,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:44:59,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:44:59,704 INFO L87 Difference]: Start difference. First operand 5451 states and 14344 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:01,468 INFO L93 Difference]: Finished difference Result 10604 states and 27807 transitions. [2022-03-01 15:45:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:01,468 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:01,482 INFO L225 Difference]: With dead ends: 10604 [2022-03-01 15:45:01,483 INFO L226 Difference]: Without dead ends: 10338 [2022-03-01 15:45:01,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=812, Invalid=2848, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:01,483 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1105 mSDsluCounter, 6890 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:01,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 7155 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2022-03-01 15:45:01,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 5455. [2022-03-01 15:45:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6312797946461313) internal successors, (14351), 5454 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14351 transitions. [2022-03-01 15:45:01,637 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14351 transitions. Word has length 135 [2022-03-01 15:45:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:01,638 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14351 transitions. [2022-03-01 15:45:01,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14351 transitions. [2022-03-01 15:45:01,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:01,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:01,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:01,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-01 15:45:01,643 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 55073473, now seen corresponding path program 287 times [2022-03-01 15:45:01,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:01,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031895455] [2022-03-01 15:45:01,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:01,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:01,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:01,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031895455] [2022-03-01 15:45:01,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031895455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:01,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:01,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:01,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135357365] [2022-03-01 15:45:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:01,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:01,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:01,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:01,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:01,917 INFO L87 Difference]: Start difference. First operand 5455 states and 14351 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:03,830 INFO L93 Difference]: Finished difference Result 10550 states and 27663 transitions. [2022-03-01 15:45:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:45:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:03,845 INFO L225 Difference]: With dead ends: 10550 [2022-03-01 15:45:03,845 INFO L226 Difference]: Without dead ends: 10275 [2022-03-01 15:45:03,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=817, Invalid=2723, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:45:03,846 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1071 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 6688 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:03,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 6688 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10275 states. [2022-03-01 15:45:03,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10275 to 5443. [2022-03-01 15:45:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-01 15:45:03,935 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-01 15:45:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:03,936 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-01 15:45:03,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:03,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-01 15:45:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:03,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:03,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:03,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-01 15:45:03,941 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:03,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:03,942 INFO L85 PathProgramCache]: Analyzing trace with hash -564232579, now seen corresponding path program 288 times [2022-03-01 15:45:03,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:03,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133908141] [2022-03-01 15:45:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:03,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:04,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:04,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133908141] [2022-03-01 15:45:04,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133908141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:04,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:04,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:04,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577100139] [2022-03-01 15:45:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:04,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:04,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:04,223 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:06,346 INFO L93 Difference]: Finished difference Result 10887 states and 28533 transitions. [2022-03-01 15:45:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:45:06,346 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:06,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:06,358 INFO L225 Difference]: With dead ends: 10887 [2022-03-01 15:45:06,359 INFO L226 Difference]: Without dead ends: 10497 [2022-03-01 15:45:06,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1163, Invalid=3949, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:45:06,359 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1240 mSDsluCounter, 7114 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 7363 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:06,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 7363 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2022-03-01 15:45:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5455. [2022-03-01 15:45:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6305463879721307) internal successors, (14347), 5454 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14347 transitions. [2022-03-01 15:45:06,445 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14347 transitions. Word has length 135 [2022-03-01 15:45:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:06,446 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14347 transitions. [2022-03-01 15:45:06,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14347 transitions. [2022-03-01 15:45:06,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:06,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:06,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:06,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-01 15:45:06,452 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:06,452 INFO L85 PathProgramCache]: Analyzing trace with hash -957697615, now seen corresponding path program 289 times [2022-03-01 15:45:06,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:06,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927614635] [2022-03-01 15:45:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:06,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:06,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:06,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927614635] [2022-03-01 15:45:06,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927614635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:06,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:06,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:06,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754955721] [2022-03-01 15:45:06,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:06,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:06,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:06,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:06,704 INFO L87 Difference]: Start difference. First operand 5455 states and 14347 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:08,607 INFO L93 Difference]: Finished difference Result 10736 states and 28137 transitions. [2022-03-01 15:45:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:45:08,607 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:08,621 INFO L225 Difference]: With dead ends: 10736 [2022-03-01 15:45:08,621 INFO L226 Difference]: Without dead ends: 10439 [2022-03-01 15:45:08,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=986, Invalid=3436, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:45:08,622 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1175 mSDsluCounter, 7010 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 7267 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:08,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 7267 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2022-03-01 15:45:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 5459. [2022-03-01 15:45:08,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.629901062660315) internal successors, (14354), 5458 states have internal predecessors, (14354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14354 transitions. [2022-03-01 15:45:08,701 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14354 transitions. Word has length 135 [2022-03-01 15:45:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:08,701 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14354 transitions. [2022-03-01 15:45:08,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14354 transitions. [2022-03-01 15:45:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:08,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:08,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:08,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-01 15:45:08,707 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:08,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 920691901, now seen corresponding path program 290 times [2022-03-01 15:45:08,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:08,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627779312] [2022-03-01 15:45:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:08,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:09,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:09,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627779312] [2022-03-01 15:45:09,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627779312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:09,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:09,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:09,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68649886] [2022-03-01 15:45:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:09,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:09,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:09,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:09,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:09,044 INFO L87 Difference]: Start difference. First operand 5459 states and 14354 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:11,124 INFO L93 Difference]: Finished difference Result 10620 states and 27839 transitions. [2022-03-01 15:45:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:11,124 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:11,135 INFO L225 Difference]: With dead ends: 10620 [2022-03-01 15:45:11,135 INFO L226 Difference]: Without dead ends: 10354 [2022-03-01 15:45:11,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=810, Invalid=2850, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:11,135 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1080 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:11,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 7158 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 15:45:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2022-03-01 15:45:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 5463. [2022-03-01 15:45:11,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6292566825338706) internal successors, (14361), 5462 states have internal predecessors, (14361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14361 transitions. [2022-03-01 15:45:11,202 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14361 transitions. Word has length 135 [2022-03-01 15:45:11,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:11,202 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14361 transitions. [2022-03-01 15:45:11,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14361 transitions. [2022-03-01 15:45:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:11,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:11,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:11,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-01 15:45:11,208 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:11,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1248156571, now seen corresponding path program 291 times [2022-03-01 15:45:11,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:11,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003361953] [2022-03-01 15:45:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:11,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:11,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003361953] [2022-03-01 15:45:11,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003361953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:11,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:11,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:11,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594012795] [2022-03-01 15:45:11,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:11,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:11,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:11,459 INFO L87 Difference]: Start difference. First operand 5463 states and 14361 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:13,087 INFO L93 Difference]: Finished difference Result 10558 states and 27673 transitions. [2022-03-01 15:45:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:45:13,087 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:13,101 INFO L225 Difference]: With dead ends: 10558 [2022-03-01 15:45:13,101 INFO L226 Difference]: Without dead ends: 10263 [2022-03-01 15:45:13,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=787, Invalid=2635, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:45:13,102 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1076 mSDsluCounter, 6776 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 7044 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:13,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 7044 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10263 states. [2022-03-01 15:45:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 5431. [2022-03-01 15:45:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 2.632228360957643) internal successors, (14293), 5430 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 14293 transitions. [2022-03-01 15:45:13,180 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 14293 transitions. Word has length 135 [2022-03-01 15:45:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:13,180 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 14293 transitions. [2022-03-01 15:45:13,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 14293 transitions. [2022-03-01 15:45:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:13,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:13,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:13,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-01 15:45:13,186 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 235447851, now seen corresponding path program 292 times [2022-03-01 15:45:13,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:13,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869736688] [2022-03-01 15:45:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:13,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:13,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:13,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869736688] [2022-03-01 15:45:13,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869736688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:13,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:13,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:13,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809102969] [2022-03-01 15:45:13,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:13,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:13,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:13,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:13,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:13,445 INFO L87 Difference]: Start difference. First operand 5431 states and 14293 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:16,110 INFO L93 Difference]: Finished difference Result 11129 states and 29083 transitions. [2022-03-01 15:45:16,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:45:16,111 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:16,123 INFO L225 Difference]: With dead ends: 11129 [2022-03-01 15:45:16,123 INFO L226 Difference]: Without dead ends: 10708 [2022-03-01 15:45:16,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1344, Invalid=4356, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:45:16,124 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1491 mSDsluCounter, 7245 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 7490 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:16,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 7490 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-01 15:45:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 5435. [2022-03-01 15:45:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.6315789473684212) internal successors, (14300), 5434 states have internal predecessors, (14300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14300 transitions. [2022-03-01 15:45:16,194 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14300 transitions. Word has length 135 [2022-03-01 15:45:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:16,194 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14300 transitions. [2022-03-01 15:45:16,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14300 transitions. [2022-03-01 15:45:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:16,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:16,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:16,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-01 15:45:16,200 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:16,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1332667989, now seen corresponding path program 293 times [2022-03-01 15:45:16,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:16,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64060856] [2022-03-01 15:45:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:16,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:16,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64060856] [2022-03-01 15:45:16,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64060856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:16,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:16,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:16,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215212950] [2022-03-01 15:45:16,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:16,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:16,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:16,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:16,536 INFO L87 Difference]: Start difference. First operand 5435 states and 14300 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:19,345 INFO L93 Difference]: Finished difference Result 10903 states and 28565 transitions. [2022-03-01 15:45:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:45:19,345 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:19,360 INFO L225 Difference]: With dead ends: 10903 [2022-03-01 15:45:19,361 INFO L226 Difference]: Without dead ends: 10513 [2022-03-01 15:45:19,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1182, Invalid=4074, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:45:19,362 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1216 mSDsluCounter, 7155 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 7406 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:19,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 7406 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-01 15:45:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 5447. [2022-03-01 15:45:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6296364304076385) internal successors, (14321), 5446 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:19,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14321 transitions. [2022-03-01 15:45:19,460 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14321 transitions. Word has length 135 [2022-03-01 15:45:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:19,460 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14321 transitions. [2022-03-01 15:45:19,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:19,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14321 transitions. [2022-03-01 15:45:19,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:19,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:19,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:19,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-01 15:45:19,467 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:19,467 INFO L85 PathProgramCache]: Analyzing trace with hash 187571785, now seen corresponding path program 294 times [2022-03-01 15:45:19,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:19,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039404846] [2022-03-01 15:45:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:19,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:19,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:19,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039404846] [2022-03-01 15:45:19,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039404846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:19,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:19,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:19,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377557231] [2022-03-01 15:45:19,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:19,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:19,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:19,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:19,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:19,789 INFO L87 Difference]: Start difference. First operand 5447 states and 14321 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:22,255 INFO L93 Difference]: Finished difference Result 10752 states and 28169 transitions. [2022-03-01 15:45:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:45:22,255 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:22,269 INFO L225 Difference]: With dead ends: 10752 [2022-03-01 15:45:22,269 INFO L226 Difference]: Without dead ends: 10455 [2022-03-01 15:45:22,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=978, Invalid=3444, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:45:22,270 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1137 mSDsluCounter, 7416 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 7662 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:22,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 7662 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-03-01 15:45:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5451. [2022-03-01 15:45:22,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6289908256880734) internal successors, (14328), 5450 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14328 transitions. [2022-03-01 15:45:22,363 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14328 transitions. Word has length 135 [2022-03-01 15:45:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:22,363 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14328 transitions. [2022-03-01 15:45:22,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14328 transitions. [2022-03-01 15:45:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:22,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:22,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:22,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-01 15:45:22,370 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:22,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:22,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2065961301, now seen corresponding path program 295 times [2022-03-01 15:45:22,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:22,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417758936] [2022-03-01 15:45:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:22,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:22,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:22,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417758936] [2022-03-01 15:45:22,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417758936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:22,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:22,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:22,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746219025] [2022-03-01 15:45:22,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:22,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:22,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:22,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:22,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:22,724 INFO L87 Difference]: Start difference. First operand 5451 states and 14328 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:24,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:24,441 INFO L93 Difference]: Finished difference Result 10636 states and 27871 transitions. [2022-03-01 15:45:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:24,441 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:24,455 INFO L225 Difference]: With dead ends: 10636 [2022-03-01 15:45:24,456 INFO L226 Difference]: Without dead ends: 10370 [2022-03-01 15:45:24,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:24,456 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1094 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 7143 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:24,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1094 Valid, 7143 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2022-03-01 15:45:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5455. [2022-03-01 15:45:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6283461679501285) internal successors, (14335), 5454 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14335 transitions. [2022-03-01 15:45:24,534 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14335 transitions. Word has length 135 [2022-03-01 15:45:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:24,535 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14335 transitions. [2022-03-01 15:45:24,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14335 transitions. [2022-03-01 15:45:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:24,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:24,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:24,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-01 15:45:24,540 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash -102887171, now seen corresponding path program 296 times [2022-03-01 15:45:24,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:24,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563944352] [2022-03-01 15:45:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:24,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:24,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563944352] [2022-03-01 15:45:24,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563944352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:24,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:24,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:24,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525585808] [2022-03-01 15:45:24,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:24,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:24,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:24,792 INFO L87 Difference]: Start difference. First operand 5455 states and 14335 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:26,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:26,331 INFO L93 Difference]: Finished difference Result 10550 states and 27647 transitions. [2022-03-01 15:45:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:45:26,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:26,343 INFO L225 Difference]: With dead ends: 10550 [2022-03-01 15:45:26,344 INFO L226 Difference]: Without dead ends: 10259 [2022-03-01 15:45:26,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:45:26,344 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1065 mSDsluCounter, 7130 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 7391 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:26,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 7391 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-01 15:45:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5427. [2022-03-01 15:45:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.6321415407298194) internal successors, (14282), 5426 states have internal predecessors, (14282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14282 transitions. [2022-03-01 15:45:26,426 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14282 transitions. Word has length 135 [2022-03-01 15:45:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:26,426 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14282 transitions. [2022-03-01 15:45:26,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14282 transitions. [2022-03-01 15:45:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:26,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:26,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:26,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-01 15:45:26,432 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:26,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1236203231, now seen corresponding path program 297 times [2022-03-01 15:45:26,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:26,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535741008] [2022-03-01 15:45:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:26,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:26,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:26,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535741008] [2022-03-01 15:45:26,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535741008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:26,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:26,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:26,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421342742] [2022-03-01 15:45:26,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:26,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:26,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:26,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:26,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:26,724 INFO L87 Difference]: Start difference. First operand 5427 states and 14282 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:29,521 INFO L93 Difference]: Finished difference Result 11195 states and 29193 transitions. [2022-03-01 15:45:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:45:29,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:29,536 INFO L225 Difference]: With dead ends: 11195 [2022-03-01 15:45:29,536 INFO L226 Difference]: Without dead ends: 10371 [2022-03-01 15:45:29,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1497, Invalid=4665, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 15:45:29,537 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1634 mSDsluCounter, 7548 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 7806 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:29,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1634 Valid, 7806 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2022-03-01 15:45:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5479. [2022-03-01 15:45:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6237677984665937) internal successors, (14373), 5478 states have internal predecessors, (14373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14373 transitions. [2022-03-01 15:45:29,667 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14373 transitions. Word has length 135 [2022-03-01 15:45:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:29,667 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14373 transitions. [2022-03-01 15:45:29,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14373 transitions. [2022-03-01 15:45:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:29,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:29,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:29,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-01 15:45:29,673 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:29,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1276714409, now seen corresponding path program 298 times [2022-03-01 15:45:29,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:29,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002643529] [2022-03-01 15:45:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:29,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:29,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:29,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002643529] [2022-03-01 15:45:29,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002643529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:29,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:29,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:29,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733343071] [2022-03-01 15:45:29,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:29,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:29,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:29,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:29,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:29,965 INFO L87 Difference]: Start difference. First operand 5479 states and 14373 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:32,752 INFO L93 Difference]: Finished difference Result 10761 states and 28035 transitions. [2022-03-01 15:45:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:45:32,753 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:32,766 INFO L225 Difference]: With dead ends: 10761 [2022-03-01 15:45:32,766 INFO L226 Difference]: Without dead ends: 10340 [2022-03-01 15:45:32,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1328, Invalid=4372, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:45:32,767 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 1478 mSDsluCounter, 7778 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 8022 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:32,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 8022 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2022-03-01 15:45:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5483. [2022-03-01 15:45:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.623130244436337) internal successors, (14380), 5482 states have internal predecessors, (14380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14380 transitions. [2022-03-01 15:45:32,849 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14380 transitions. Word has length 135 [2022-03-01 15:45:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:32,849 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14380 transitions. [2022-03-01 15:45:32,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14380 transitions. [2022-03-01 15:45:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:32,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:32,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:32,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-01 15:45:32,855 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:32,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:32,855 INFO L85 PathProgramCache]: Analyzing trace with hash -179494271, now seen corresponding path program 299 times [2022-03-01 15:45:32,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:32,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451845952] [2022-03-01 15:45:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:33,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:33,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451845952] [2022-03-01 15:45:33,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451845952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:33,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:33,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:33,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193192103] [2022-03-01 15:45:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:33,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:33,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:33,195 INFO L87 Difference]: Start difference. First operand 5483 states and 14380 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:35,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:35,363 INFO L93 Difference]: Finished difference Result 10559 states and 27575 transitions. [2022-03-01 15:45:35,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:45:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:35,374 INFO L225 Difference]: With dead ends: 10559 [2022-03-01 15:45:35,374 INFO L226 Difference]: Without dead ends: 10169 [2022-03-01 15:45:35,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:45:35,375 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1229 mSDsluCounter, 7631 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 7878 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:35,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 7878 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10169 states. [2022-03-01 15:45:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10169 to 5495. [2022-03-01 15:45:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6212231525300327) internal successors, (14401), 5494 states have internal predecessors, (14401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:35,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14401 transitions. [2022-03-01 15:45:35,451 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14401 transitions. Word has length 135 [2022-03-01 15:45:35,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:35,451 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14401 transitions. [2022-03-01 15:45:35,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14401 transitions. [2022-03-01 15:45:35,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:35,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:35,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:35,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-01 15:45:35,457 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:35,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1324590475, now seen corresponding path program 300 times [2022-03-01 15:45:35,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:35,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105223487] [2022-03-01 15:45:35,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:35,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:35,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:35,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105223487] [2022-03-01 15:45:35,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105223487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:35,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:35,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:35,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924370795] [2022-03-01 15:45:35,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:35,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:35,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:35,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:35,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:35,715 INFO L87 Difference]: Start difference. First operand 5495 states and 14401 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:37,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:37,742 INFO L93 Difference]: Finished difference Result 10416 states and 27201 transitions. [2022-03-01 15:45:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:45:37,743 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:37,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:37,755 INFO L225 Difference]: With dead ends: 10416 [2022-03-01 15:45:37,756 INFO L226 Difference]: Without dead ends: 10119 [2022-03-01 15:45:37,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=968, Invalid=3454, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:45:37,756 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1153 mSDsluCounter, 6709 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 6977 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:37,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 6977 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10119 states. [2022-03-01 15:45:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10119 to 5499. [2022-03-01 15:45:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6205893052018916) internal successors, (14408), 5498 states have internal predecessors, (14408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14408 transitions. [2022-03-01 15:45:37,834 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14408 transitions. Word has length 135 [2022-03-01 15:45:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:37,834 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 14408 transitions. [2022-03-01 15:45:37,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:37,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14408 transitions. [2022-03-01 15:45:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:37,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:37,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:37,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-01 15:45:37,839 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 553799041, now seen corresponding path program 301 times [2022-03-01 15:45:37,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:37,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205328221] [2022-03-01 15:45:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:38,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:38,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205328221] [2022-03-01 15:45:38,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205328221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:38,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:38,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:38,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306555116] [2022-03-01 15:45:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:38,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:38,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:38,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:38,263 INFO L87 Difference]: Start difference. First operand 5499 states and 14408 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:40,243 INFO L93 Difference]: Finished difference Result 10316 states and 26947 transitions. [2022-03-01 15:45:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:40,243 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:40,254 INFO L225 Difference]: With dead ends: 10316 [2022-03-01 15:45:40,254 INFO L226 Difference]: Without dead ends: 10050 [2022-03-01 15:45:40,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:40,255 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1107 mSDsluCounter, 6173 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 6456 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:40,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 6456 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2022-03-01 15:45:40,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5503. [2022-03-01 15:45:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 2.619956379498364) internal successors, (14415), 5502 states have internal predecessors, (14415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 14415 transitions. [2022-03-01 15:45:40,331 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 14415 transitions. Word has length 135 [2022-03-01 15:45:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:40,332 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 14415 transitions. [2022-03-01 15:45:40,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 14415 transitions. [2022-03-01 15:45:40,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:40,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:40,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:40,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-01 15:45:40,338 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:40,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1615049431, now seen corresponding path program 302 times [2022-03-01 15:45:40,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:40,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113132723] [2022-03-01 15:45:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:40,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:40,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:40,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113132723] [2022-03-01 15:45:40,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113132723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:40,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:40,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:40,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528255862] [2022-03-01 15:45:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:40,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:40,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:40,670 INFO L87 Difference]: Start difference. First operand 5503 states and 14415 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:42,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:42,352 INFO L93 Difference]: Finished difference Result 10182 states and 26599 transitions. [2022-03-01 15:45:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:45:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:42,366 INFO L225 Difference]: With dead ends: 10182 [2022-03-01 15:45:42,366 INFO L226 Difference]: Without dead ends: 9635 [2022-03-01 15:45:42,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=759, Invalid=2547, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 15:45:42,367 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1074 mSDsluCounter, 6811 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:42,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 7085 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-01 15:45:42,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5219. [2022-03-01 15:45:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 2.6282100421617476) internal successors, (13714), 5218 states have internal predecessors, (13714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 13714 transitions. [2022-03-01 15:45:42,439 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 13714 transitions. Word has length 135 [2022-03-01 15:45:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:42,439 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 13714 transitions. [2022-03-01 15:45:42,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 13714 transitions. [2022-03-01 15:45:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:42,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:42,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:42,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-01 15:45:42,444 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1576054521, now seen corresponding path program 303 times [2022-03-01 15:45:42,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:42,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916610435] [2022-03-01 15:45:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:42,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:42,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916610435] [2022-03-01 15:45:42,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916610435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:42,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:42,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:42,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360466237] [2022-03-01 15:45:42,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:42,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:42,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:42,704 INFO L87 Difference]: Start difference. First operand 5219 states and 13714 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:44,521 INFO L93 Difference]: Finished difference Result 9898 states and 25898 transitions. [2022-03-01 15:45:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:45:44,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:44,532 INFO L225 Difference]: With dead ends: 9898 [2022-03-01 15:45:44,532 INFO L226 Difference]: Without dead ends: 9607 [2022-03-01 15:45:44,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=959, Invalid=3073, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:45:44,533 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1142 mSDsluCounter, 6995 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:44,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 7246 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:44,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2022-03-01 15:45:44,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 5299. [2022-03-01 15:45:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.629294073235183) internal successors, (13930), 5298 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13930 transitions. [2022-03-01 15:45:44,603 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13930 transitions. Word has length 135 [2022-03-01 15:45:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:44,603 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13930 transitions. [2022-03-01 15:45:44,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13930 transitions. [2022-03-01 15:45:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:44,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:44,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:44,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-01 15:45:44,609 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1284348493, now seen corresponding path program 304 times [2022-03-01 15:45:44,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:44,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37462579] [2022-03-01 15:45:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:44,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:44,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37462579] [2022-03-01 15:45:44,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37462579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:44,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:44,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:44,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967021834] [2022-03-01 15:45:44,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:44,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:44,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:44,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:44,939 INFO L87 Difference]: Start difference. First operand 5299 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:46,745 INFO L93 Difference]: Finished difference Result 9912 states and 25928 transitions. [2022-03-01 15:45:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:45:46,745 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:46,758 INFO L225 Difference]: With dead ends: 9912 [2022-03-01 15:45:46,758 INFO L226 Difference]: Without dead ends: 9646 [2022-03-01 15:45:46,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=777, Invalid=2763, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:45:46,759 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1151 mSDsluCounter, 6634 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 6878 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:46,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 6878 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9646 states. [2022-03-01 15:45:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9646 to 5303. [2022-03-01 15:45:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.628630705394191) internal successors, (13937), 5302 states have internal predecessors, (13937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13937 transitions. [2022-03-01 15:45:46,831 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13937 transitions. Word has length 135 [2022-03-01 15:45:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:46,832 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13937 transitions. [2022-03-01 15:45:46,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13937 transitions. [2022-03-01 15:45:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:46,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:46,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:46,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-01 15:45:46,837 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -884499979, now seen corresponding path program 305 times [2022-03-01 15:45:46,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:46,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135509517] [2022-03-01 15:45:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:47,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:47,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135509517] [2022-03-01 15:45:47,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135509517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:47,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:47,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:47,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137616738] [2022-03-01 15:45:47,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:47,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:47,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:47,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:47,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:47,177 INFO L87 Difference]: Start difference. First operand 5303 states and 13937 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:49,124 INFO L93 Difference]: Finished difference Result 9874 states and 25828 transitions. [2022-03-01 15:45:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:49,124 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:49,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:49,134 INFO L225 Difference]: With dead ends: 9874 [2022-03-01 15:45:49,135 INFO L226 Difference]: Without dead ends: 9603 [2022-03-01 15:45:49,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=843, Invalid=2817, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:49,135 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1132 mSDsluCounter, 6901 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7149 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:49,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7149 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2022-03-01 15:45:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 5295. [2022-03-01 15:45:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.629202871174915) internal successors, (13919), 5294 states have internal predecessors, (13919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13919 transitions. [2022-03-01 15:45:49,205 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13919 transitions. Word has length 135 [2022-03-01 15:45:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:49,206 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13919 transitions. [2022-03-01 15:45:49,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:49,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13919 transitions. [2022-03-01 15:45:49,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:49,211 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:49,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:49,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-01 15:45:49,211 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash -511719813, now seen corresponding path program 306 times [2022-03-01 15:45:49,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:49,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2759168] [2022-03-01 15:45:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:49,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:49,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:49,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2759168] [2022-03-01 15:45:49,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2759168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:49,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:49,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:49,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795639082] [2022-03-01 15:45:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:49,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:49,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:49,484 INFO L87 Difference]: Start difference. First operand 5295 states and 13919 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:51,253 INFO L93 Difference]: Finished difference Result 10044 states and 26266 transitions. [2022-03-01 15:45:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:45:51,254 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:51,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:51,267 INFO L225 Difference]: With dead ends: 10044 [2022-03-01 15:45:51,267 INFO L226 Difference]: Without dead ends: 9747 [2022-03-01 15:45:51,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=952, Invalid=3338, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:45:51,268 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1231 mSDsluCounter, 6731 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 6965 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:51,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 6965 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9747 states. [2022-03-01 15:45:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9747 to 5299. [2022-03-01 15:45:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6285390713476784) internal successors, (13926), 5298 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13926 transitions. [2022-03-01 15:45:51,343 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13926 transitions. Word has length 135 [2022-03-01 15:45:51,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:51,343 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13926 transitions. [2022-03-01 15:45:51,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13926 transitions. [2022-03-01 15:45:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:51,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:51,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:51,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-01 15:45:51,349 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:51,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:51,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1366669703, now seen corresponding path program 307 times [2022-03-01 15:45:51,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:51,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090954603] [2022-03-01 15:45:51,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:51,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:51,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090954603] [2022-03-01 15:45:51,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090954603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:51,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:51,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:51,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906104655] [2022-03-01 15:45:51,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:51,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:51,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:51,654 INFO L87 Difference]: Start difference. First operand 5299 states and 13926 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:53,671 INFO L93 Difference]: Finished difference Result 9928 states and 25968 transitions. [2022-03-01 15:45:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:45:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:53,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:53,682 INFO L225 Difference]: With dead ends: 9928 [2022-03-01 15:45:53,682 INFO L226 Difference]: Without dead ends: 9662 [2022-03-01 15:45:53,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=807, Invalid=2853, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:45:53,683 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1153 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 6874 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:53,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 6874 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:45:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9662 states. [2022-03-01 15:45:53,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9662 to 5303. [2022-03-01 15:45:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.627876273104489) internal successors, (13933), 5302 states have internal predecessors, (13933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13933 transitions. [2022-03-01 15:45:53,751 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13933 transitions. Word has length 135 [2022-03-01 15:45:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:53,751 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13933 transitions. [2022-03-01 15:45:53,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13933 transitions. [2022-03-01 15:45:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:53,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:53,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:53,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-01 15:45:53,756 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash -802178769, now seen corresponding path program 308 times [2022-03-01 15:45:53,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:53,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529101716] [2022-03-01 15:45:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:54,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:54,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529101716] [2022-03-01 15:45:54,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529101716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:54,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:54,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:54,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624878246] [2022-03-01 15:45:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:54,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:54,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:54,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:54,102 INFO L87 Difference]: Start difference. First operand 5303 states and 13933 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:55,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:55,927 INFO L93 Difference]: Finished difference Result 9874 states and 25824 transitions. [2022-03-01 15:45:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:45:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:55,943 INFO L225 Difference]: With dead ends: 9874 [2022-03-01 15:45:55,943 INFO L226 Difference]: Without dead ends: 9599 [2022-03-01 15:45:55,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=813, Invalid=2727, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 15:45:55,944 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1139 mSDsluCounter, 6866 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 7110 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:55,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 7110 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:55,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2022-03-01 15:45:56,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 5291. [2022-03-01 15:45:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.6291115311909263) internal successors, (13908), 5290 states have internal predecessors, (13908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13908 transitions. [2022-03-01 15:45:56,027 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13908 transitions. Word has length 135 [2022-03-01 15:45:56,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:56,027 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13908 transitions. [2022-03-01 15:45:56,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:56,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13908 transitions. [2022-03-01 15:45:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:56,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:56,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:56,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-01 15:45:56,033 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:56,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1421484821, now seen corresponding path program 309 times [2022-03-01 15:45:56,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:56,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643144563] [2022-03-01 15:45:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:56,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:56,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:56,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643144563] [2022-03-01 15:45:56,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643144563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:56,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:56,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:56,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720016607] [2022-03-01 15:45:56,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:56,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:56,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:56,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:56,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:56,297 INFO L87 Difference]: Start difference. First operand 5291 states and 13908 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:58,754 INFO L93 Difference]: Finished difference Result 10211 states and 26694 transitions. [2022-03-01 15:45:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-01 15:45:58,755 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:45:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:58,767 INFO L225 Difference]: With dead ends: 10211 [2022-03-01 15:45:58,767 INFO L226 Difference]: Without dead ends: 9821 [2022-03-01 15:45:58,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1150, Invalid=3962, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:45:58,768 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1312 mSDsluCounter, 7216 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:58,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 7433 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:45:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2022-03-01 15:45:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 5303. [2022-03-01 15:45:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.627121840814787) internal successors, (13929), 5302 states have internal predecessors, (13929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13929 transitions. [2022-03-01 15:45:58,856 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13929 transitions. Word has length 135 [2022-03-01 15:45:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:58,856 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13929 transitions. [2022-03-01 15:45:58,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13929 transitions. [2022-03-01 15:45:58,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:45:58,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:58,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:58,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-01 15:45:58,863 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:45:58,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1814949857, now seen corresponding path program 310 times [2022-03-01 15:45:58,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:58,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495911795] [2022-03-01 15:45:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:58,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:59,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:59,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495911795] [2022-03-01 15:45:59,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495911795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:59,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:59,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:45:59,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018816162] [2022-03-01 15:45:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:59,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:45:59,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:45:59,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:45:59,121 INFO L87 Difference]: Start difference. First operand 5303 states and 13929 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:01,477 INFO L93 Difference]: Finished difference Result 10060 states and 26298 transitions. [2022-03-01 15:46:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:46:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:46:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:01,491 INFO L225 Difference]: With dead ends: 10060 [2022-03-01 15:46:01,491 INFO L226 Difference]: Without dead ends: 9763 [2022-03-01 15:46:01,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=976, Invalid=3446, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 15:46:01,492 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1237 mSDsluCounter, 6737 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 6972 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:01,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1237 Valid, 6972 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:46:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9763 states. [2022-03-01 15:46:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9763 to 5307. [2022-03-01 15:46:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.626460610629476) internal successors, (13936), 5306 states have internal predecessors, (13936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13936 transitions. [2022-03-01 15:46:01,568 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13936 transitions. Word has length 135 [2022-03-01 15:46:01,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:01,568 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13936 transitions. [2022-03-01 15:46:01,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13936 transitions. [2022-03-01 15:46:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:46:01,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:01,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:01,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-01 15:46:01,573 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:46:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 63439659, now seen corresponding path program 311 times [2022-03-01 15:46:01,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:01,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251732269] [2022-03-01 15:46:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:01,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:01,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251732269] [2022-03-01 15:46:01,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251732269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:01,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:01,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:46:01,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857794989] [2022-03-01 15:46:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:01,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:46:01,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:46:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:46:01,929 INFO L87 Difference]: Start difference. First operand 5307 states and 13936 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:03,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:03,701 INFO L93 Difference]: Finished difference Result 9944 states and 26000 transitions. [2022-03-01 15:46:03,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:46:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:46:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:03,716 INFO L225 Difference]: With dead ends: 9944 [2022-03-01 15:46:03,716 INFO L226 Difference]: Without dead ends: 9678 [2022-03-01 15:46:03,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=804, Invalid=2856, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 15:46:03,717 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1161 mSDsluCounter, 6263 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:03,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 6510 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:46:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9678 states. [2022-03-01 15:46:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9678 to 5311. [2022-03-01 15:46:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.625800376647834) internal successors, (13943), 5310 states have internal predecessors, (13943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13943 transitions. [2022-03-01 15:46:03,808 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13943 transitions. Word has length 135 [2022-03-01 15:46:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:03,808 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13943 transitions. [2022-03-01 15:46:03,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13943 transitions. [2022-03-01 15:46:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:46:03,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:03,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:03,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-01 15:46:03,814 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:46:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2105408813, now seen corresponding path program 312 times [2022-03-01 15:46:03,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:03,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353514336] [2022-03-01 15:46:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:03,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:04,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:04,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353514336] [2022-03-01 15:46:04,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353514336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:04,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:04,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:46:04,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052188042] [2022-03-01 15:46:04,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:04,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:46:04,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:04,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:46:04,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:46:04,115 INFO L87 Difference]: Start difference. First operand 5311 states and 13943 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:05,905 INFO L93 Difference]: Finished difference Result 9882 states and 25834 transitions. [2022-03-01 15:46:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:46:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:46:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:05,919 INFO L225 Difference]: With dead ends: 9882 [2022-03-01 15:46:05,920 INFO L226 Difference]: Without dead ends: 9587 [2022-03-01 15:46:05,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=785, Invalid=2637, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 15:46:05,920 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1156 mSDsluCounter, 6486 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:05,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 6734 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:46:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9587 states. [2022-03-01 15:46:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9587 to 5279. [2022-03-01 15:46:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.6288366805608185) internal successors, (13875), 5278 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:06,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13875 transitions. [2022-03-01 15:46:06,019 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13875 transitions. Word has length 135 [2022-03-01 15:46:06,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:06,019 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13875 transitions. [2022-03-01 15:46:06,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13875 transitions. [2022-03-01 15:46:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:46:06,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:06,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:06,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-01 15:46:06,026 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:46:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -621804391, now seen corresponding path program 313 times [2022-03-01 15:46:06,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:06,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177650998] [2022-03-01 15:46:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:06,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:06,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177650998] [2022-03-01 15:46:06,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177650998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:06,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:06,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:46:06,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610751665] [2022-03-01 15:46:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:06,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:46:06,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:46:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:46:06,412 INFO L87 Difference]: Start difference. First operand 5279 states and 13875 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:09,326 INFO L93 Difference]: Finished difference Result 10453 states and 27244 transitions. [2022-03-01 15:46:09,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 15:46:09,326 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:46:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:09,339 INFO L225 Difference]: With dead ends: 10453 [2022-03-01 15:46:09,339 INFO L226 Difference]: Without dead ends: 10032 [2022-03-01 15:46:09,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1328, Invalid=4372, Unknown=0, NotChecked=0, Total=5700 [2022-03-01 15:46:09,340 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1611 mSDsluCounter, 6929 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 7149 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:09,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1611 Valid, 7149 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:46:09,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10032 states. [2022-03-01 15:46:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10032 to 5283. [2022-03-01 15:46:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.6281711472926923) internal successors, (13882), 5282 states have internal predecessors, (13882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13882 transitions. [2022-03-01 15:46:09,429 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13882 transitions. Word has length 135 [2022-03-01 15:46:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:09,429 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13882 transitions. [2022-03-01 15:46:09,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13882 transitions. [2022-03-01 15:46:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:46:09,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:09,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:09,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-01 15:46:09,435 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:46:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:09,435 INFO L85 PathProgramCache]: Analyzing trace with hash 475415747, now seen corresponding path program 314 times [2022-03-01 15:46:09,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:09,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143598400] [2022-03-01 15:46:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:09,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:09,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:09,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143598400] [2022-03-01 15:46:09,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143598400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:09,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:09,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:46:09,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673607846] [2022-03-01 15:46:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:09,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:46:09,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:46:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:46:09,861 INFO L87 Difference]: Start difference. First operand 5283 states and 13882 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:12,310 INFO L93 Difference]: Finished difference Result 10227 states and 26726 transitions. [2022-03-01 15:46:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:46:12,310 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-01 15:46:12,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:12,323 INFO L225 Difference]: With dead ends: 10227 [2022-03-01 15:46:12,324 INFO L226 Difference]: Without dead ends: 9837 [2022-03-01 15:46:12,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:46:12,324 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1333 mSDsluCounter, 6837 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:12,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 7063 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:46:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9837 states. [2022-03-01 15:46:12,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9837 to 5295. [2022-03-01 15:46:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6261805817907065) internal successors, (13903), 5294 states have internal predecessors, (13903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13903 transitions. [2022-03-01 15:46:12,413 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13903 transitions. Word has length 135 [2022-03-01 15:46:12,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:12,414 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13903 transitions. [2022-03-01 15:46:12,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13903 transitions. [2022-03-01 15:46:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-01 15:46:12,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:12,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:12,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-01 15:46:12,419 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:46:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -669680457, now seen corresponding path program 315 times [2022-03-01 15:46:12,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:12,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433924165] [2022-03-01 15:46:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:12,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:12,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:12,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433924165] [2022-03-01 15:46:12,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433924165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:12,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:12,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-01 15:46:12,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186132588] [2022-03-01 15:46:12,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:12,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 15:46:12,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:12,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 15:46:12,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:46:12,697 INFO L87 Difference]: Start difference. First operand 5295 states and 13903 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-01 15:46:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:46:14,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=483, Invalid=1679, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:46:14,013 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 643 mSDsluCounter, 5930 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 6186 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:14,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 6186 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:46:14,014 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-01 15:46:14,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-01 15:46:14,014 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5295states) and FLOYD_HOARE automaton (currently 24 states, 26 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. [2022-03-01 15:46:14,015 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-01 15:46:14,016 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-01 15:46:14,021 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 15:46:14,022 INFO L732 BasicCegarLoop]: Path program histogram: [315, 20, 20, 7, 1, 1, 1, 1] [2022-03-01 15:46:14,026 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 15:46:14,031 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 15:46:14,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 03:46:14 BasicIcfg [2022-03-01 15:46:14,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 15:46:14,033 INFO L158 Benchmark]: Toolchain (without parser) took 837811.34ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 152.9MB in the beginning and 1.1GB in the end (delta: -911.5MB). Peak memory consumption was 397.5MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory is still 168.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.08ms. Allocated memory is still 205.5MB. Free memory was 182.0MB in the beginning and 179.1MB in the end (delta: 3.0MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.08ms. Allocated memory is still 205.5MB. Free memory was 179.1MB in the beginning and 177.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: Boogie Preprocessor took 15.50ms. Allocated memory is still 205.5MB. Free memory was 177.0MB in the beginning and 175.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: RCFGBuilder took 327.11ms. Allocated memory is still 205.5MB. Free memory was 175.6MB in the beginning and 161.2MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L158 Benchmark]: TraceAbstraction took 837248.53ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 160.6MB in the beginning and 1.1GB in the end (delta: -903.9MB). Peak memory consumption was 403.5MB. Max. memory is 8.0GB. [2022-03-01 15:46:14,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory is still 168.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.08ms. Allocated memory is still 205.5MB. Free memory was 182.0MB in the beginning and 179.1MB in the end (delta: 3.0MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.08ms. Allocated memory is still 205.5MB. Free memory was 179.1MB in the beginning and 177.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.50ms. Allocated memory is still 205.5MB. Free memory was 177.0MB in the beginning and 175.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 327.11ms. Allocated memory is still 205.5MB. Free memory was 175.6MB in the beginning and 161.2MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 837248.53ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 160.6MB in the beginning and 1.1GB in the end (delta: -903.9MB). Peak memory consumption was 403.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5295states) and FLOYD_HOARE automaton (currently 24 states, 26 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5295states) and FLOYD_HOARE automaton (currently 24 states, 26 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5295states) and FLOYD_HOARE automaton (currently 24 states, 26 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 47 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 248 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 837.1s, OverallIterations: 366, TraceHistogramMax: 1, PathProgramHistogramMax: 315, EmptinessCheckTime: 2.2s, AutomataDifference: 685.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350315 SdHoareTripleChecker+Valid, 151.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350315 mSDsluCounter, 2373339 SdHoareTripleChecker+Invalid, 128.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2281991 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 443279 IncrementalHoareTripleChecker+Invalid, 443314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 136404 mSDtfsCounter, 443279 mSolverCounterSat, 3.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31562 GetRequests, 10751 SyntacticMatches, 0 SemanticMatches, 20810 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168307 ImplicationChecksByTransitivity, 576.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7153occurred in iteration=0, InterpolantAutomatonStates: 14071, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 32.0s AutomataMinimizationTime, 365 MinimizatonAttempts, 1547136 StatesRemovedByMinimization, 363 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 111.3s InterpolantComputationTime, 47166 NumberOfCodeBlocks, 47166 NumberOfCodeBlocksAsserted, 366 NumberOfCheckSat, 46800 ConstructedInterpolants, 0 QuantifiedInterpolants, 359442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 366 InterpolantComputations, 366 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown