/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/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:56:33,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:56:33,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:56:33,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:56:33,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:56:33,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:56:33,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:56:33,617 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 [2022-03-15 13:56:33,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:56:33,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:56:33,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:56:33,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:56:33,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:56:33,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:56:33,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:56:33,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:56:33,640 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:56:33,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:56:33,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:56:33,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:56:33,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:56:33,642 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:56:33,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:56:33,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:56:33,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:56:33,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:56:33,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:56:33,880 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:56:33,882 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:56:33,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-03-15 13:56:33,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad51e856/ca7c6781f16e4f6e9027c2c396da3a79/FLAG8af6ff722 [2022-03-15 13:56:34,330 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:56:34,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-03-15 13:56:34,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad51e856/ca7c6781f16e4f6e9027c2c396da3a79/FLAG8af6ff722 [2022-03-15 13:56:34,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad51e856/ca7c6781f16e4f6e9027c2c396da3a79 [2022-03-15 13:56:34,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:56:34,355 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:56:34,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:56:34,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:56:34,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:56:34,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec93cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34, skipping insertion in model container [2022-03-15 13:56:34,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:56:34,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:56:34,542 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/parallel-bakery-3.wvr.c[5426,5439] [2022-03-15 13:56:34,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:56:34,548 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:56:34,577 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/parallel-bakery-3.wvr.c[5426,5439] [2022-03-15 13:56:34,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:56:34,586 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:56:34,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34 WrapperNode [2022-03-15 13:56:34,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:56:34,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:56:34,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:56:34,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:56:34,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,620 INFO L137 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279 [2022-03-15 13:56:34,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:56:34,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:56:34,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:56:34,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:56:34,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:56:34,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:56:34,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:56:34,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:56:34,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (1/1) ... [2022-03-15 13:56:34,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:56:34,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:56:34,683 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) [2022-03-15 13:56:34,694 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 [2022-03-15 13:56:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:56:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:56:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 13:56:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:56:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:56:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 13:56:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 13:56:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:56:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:56:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:56:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:56:34,718 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:56:34,773 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:56:34,774 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:56:35,073 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:56:35,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:56:35,201 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:56:35,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:56:35 BoogieIcfgContainer [2022-03-15 13:56:35,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:56:35,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:56:35,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:56:35,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:56:35,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:56:34" (1/3) ... [2022-03-15 13:56:35,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b4a1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:56:35, skipping insertion in model container [2022-03-15 13:56:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:56:34" (2/3) ... [2022-03-15 13:56:35,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b4a1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:56:35, skipping insertion in model container [2022-03-15 13:56:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:56:35" (3/3) ... [2022-03-15 13:56:35,210 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-03-15 13:56:35,213 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:56:35,213 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:56:35,214 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:56:35,214 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:56:35,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,266 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,267 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,269 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,270 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,271 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,271 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,271 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,271 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,271 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,272 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,273 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,274 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,278 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,279 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,281 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,285 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,286 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,287 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:56:35,289 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 13:56:35,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:56:35,323 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 [2022-03-15 13:56:35,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 13:56:35,332 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 152 transitions, 328 flow [2022-03-15 13:56:35,713 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:35,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:35,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:35,884 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] [2022-03-15 13:56:35,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:35,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1965078490, now seen corresponding path program 1 times [2022-03-15 13:56:35,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:35,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901839559] [2022-03-15 13:56:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:35,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:36,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:36,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901839559] [2022-03-15 13:56:36,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901839559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:36,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:36,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:56:36,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424855130] [2022-03-15 13:56:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:36,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:56:36,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:36,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:56:36,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:56:36,333 INFO L87 Difference]: Start difference. First operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 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 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:36,565 INFO L93 Difference]: Finished difference Result 15733 states and 53560 transitions. [2022-03-15 13:56:36,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:56:36,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:36,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:36,742 INFO L225 Difference]: With dead ends: 15733 [2022-03-15 13:56:36,742 INFO L226 Difference]: Without dead ends: 15731 [2022-03-15 13:56:36,743 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 [2022-03-15 13:56:36,746 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 31 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:36,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 240 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:56:36,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2022-03-15 13:56:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15731. [2022-03-15 13:56:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15731 states, 15730 states have (on average 3.4048315321042595) internal successors, (53558), 15730 states have internal predecessors, (53558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15731 states to 15731 states and 53558 transitions. [2022-03-15 13:56:37,299 INFO L78 Accepts]: Start accepts. Automaton has 15731 states and 53558 transitions. Word has length 134 [2022-03-15 13:56:37,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:37,300 INFO L470 AbstractCegarLoop]: Abstraction has 15731 states and 53558 transitions. [2022-03-15 13:56:37,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15731 states and 53558 transitions. [2022-03-15 13:56:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:37,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:37,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:37,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:56:37,340 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash 710948772, now seen corresponding path program 2 times [2022-03-15 13:56:37,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:37,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851111226] [2022-03-15 13:56:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:37,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:37,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851111226] [2022-03-15 13:56:37,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851111226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:37,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:37,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:56:37,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040372564] [2022-03-15 13:56:37,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:37,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:56:37,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:37,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:56:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:37,747 INFO L87 Difference]: Start difference. First operand 15731 states and 53558 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:38,449 INFO L93 Difference]: Finished difference Result 22824 states and 75334 transitions. [2022-03-15 13:56:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:56:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:38,519 INFO L225 Difference]: With dead ends: 22824 [2022-03-15 13:56:38,520 INFO L226 Difference]: Without dead ends: 21537 [2022-03-15 13:56:38,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:56:38,521 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 641 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:38,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 1811 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:56:38,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21537 states. [2022-03-15 13:56:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21537 to 15945. [2022-03-15 13:56:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15945 states, 15944 states have (on average 3.3906171600602106) internal successors, (54060), 15944 states have internal predecessors, (54060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15945 states to 15945 states and 54060 transitions. [2022-03-15 13:56:39,054 INFO L78 Accepts]: Start accepts. Automaton has 15945 states and 54060 transitions. Word has length 134 [2022-03-15 13:56:39,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:39,054 INFO L470 AbstractCegarLoop]: Abstraction has 15945 states and 54060 transitions. [2022-03-15 13:56:39,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15945 states and 54060 transitions. [2022-03-15 13:56:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:39,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:39,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:39,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:56:39,091 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1264467722, now seen corresponding path program 3 times [2022-03-15 13:56:39,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:39,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304319393] [2022-03-15 13:56:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:39,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:39,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304319393] [2022-03-15 13:56:39,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304319393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:39,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:39,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:56:39,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505180492] [2022-03-15 13:56:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:39,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:56:39,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:39,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:56:39,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:56:39,271 INFO L87 Difference]: Start difference. First operand 15945 states and 54060 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:39,656 INFO L93 Difference]: Finished difference Result 17274 states and 58099 transitions. [2022-03-15 13:56:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:56:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:39,713 INFO L225 Difference]: With dead ends: 17274 [2022-03-15 13:56:39,713 INFO L226 Difference]: Without dead ends: 16203 [2022-03-15 13:56:39,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:39,719 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 170 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:39,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 875 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:39,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16203 states. [2022-03-15 13:56:40,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16203 to 16155. [2022-03-15 13:56:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16155 states, 16154 states have (on average 3.3819487433453013) internal successors, (54632), 16154 states have internal predecessors, (54632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:40,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16155 states to 16155 states and 54632 transitions. [2022-03-15 13:56:40,190 INFO L78 Accepts]: Start accepts. Automaton has 16155 states and 54632 transitions. Word has length 134 [2022-03-15 13:56:40,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:40,191 INFO L470 AbstractCegarLoop]: Abstraction has 16155 states and 54632 transitions. [2022-03-15 13:56:40,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:40,191 INFO L276 IsEmpty]: Start isEmpty. Operand 16155 states and 54632 transitions. [2022-03-15 13:56:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:40,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:40,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:40,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:56:40,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1979146438, now seen corresponding path program 4 times [2022-03-15 13:56:40,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:40,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724151568] [2022-03-15 13:56:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:40,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:40,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:40,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724151568] [2022-03-15 13:56:40,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724151568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:40,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:40,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:56:40,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855101801] [2022-03-15 13:56:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:40,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:56:40,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:56:40,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:56:40,412 INFO L87 Difference]: Start difference. First operand 16155 states and 54632 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:40,709 INFO L93 Difference]: Finished difference Result 19293 states and 65201 transitions. [2022-03-15 13:56:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 13:56:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:40,775 INFO L225 Difference]: With dead ends: 19293 [2022-03-15 13:56:40,775 INFO L226 Difference]: Without dead ends: 17928 [2022-03-15 13:56:40,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:56:40,780 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 267 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:40,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 385 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:56:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17928 states. [2022-03-15 13:56:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17928 to 17718. [2022-03-15 13:56:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17718 states, 17717 states have (on average 3.390359541683129) internal successors, (60067), 17717 states have internal predecessors, (60067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17718 states to 17718 states and 60067 transitions. [2022-03-15 13:56:41,173 INFO L78 Accepts]: Start accepts. Automaton has 17718 states and 60067 transitions. Word has length 134 [2022-03-15 13:56:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:41,173 INFO L470 AbstractCegarLoop]: Abstraction has 17718 states and 60067 transitions. [2022-03-15 13:56:41,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 17718 states and 60067 transitions. [2022-03-15 13:56:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:41,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:41,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:41,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:56:41,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1050060838, now seen corresponding path program 5 times [2022-03-15 13:56:41,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:41,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336390361] [2022-03-15 13:56:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:41,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:41,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336390361] [2022-03-15 13:56:41,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336390361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:41,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:41,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:56:41,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770393119] [2022-03-15 13:56:41,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:41,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:56:41,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:56:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:56:41,473 INFO L87 Difference]: Start difference. First operand 17718 states and 60067 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:41,885 INFO L93 Difference]: Finished difference Result 23441 states and 79019 transitions. [2022-03-15 13:56:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:56:41,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:41,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:41,966 INFO L225 Difference]: With dead ends: 23441 [2022-03-15 13:56:41,967 INFO L226 Difference]: Without dead ends: 23441 [2022-03-15 13:56:41,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:41,967 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 348 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:41,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 570 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:42,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23441 states. [2022-03-15 13:56:42,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23441 to 19770. [2022-03-15 13:56:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19770 states, 19769 states have (on average 3.3602610147200163) internal successors, (66429), 19769 states have internal predecessors, (66429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 66429 transitions. [2022-03-15 13:56:42,494 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 66429 transitions. Word has length 134 [2022-03-15 13:56:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:42,495 INFO L470 AbstractCegarLoop]: Abstraction has 19770 states and 66429 transitions. [2022-03-15 13:56:42,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 66429 transitions. [2022-03-15 13:56:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:42,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:42,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:42,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:56:42,534 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -932759446, now seen corresponding path program 6 times [2022-03-15 13:56:42,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:42,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777541006] [2022-03-15 13:56:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:42,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:42,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777541006] [2022-03-15 13:56:42,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777541006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:42,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:42,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:56:42,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69847752] [2022-03-15 13:56:42,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:42,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:56:42,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:56:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:42,668 INFO L87 Difference]: Start difference. First operand 19770 states and 66429 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:43,388 INFO L93 Difference]: Finished difference Result 25835 states and 85136 transitions. [2022-03-15 13:56:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:56:43,389 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:43,471 INFO L225 Difference]: With dead ends: 25835 [2022-03-15 13:56:43,471 INFO L226 Difference]: Without dead ends: 24434 [2022-03-15 13:56:43,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:56:43,471 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 562 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:43,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1792 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 13:56:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24434 states. [2022-03-15 13:56:43,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24434 to 19978. [2022-03-15 13:56:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19978 states, 19977 states have (on average 3.3505030785403216) internal successors, (66933), 19977 states have internal predecessors, (66933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19978 states to 19978 states and 66933 transitions. [2022-03-15 13:56:43,955 INFO L78 Accepts]: Start accepts. Automaton has 19978 states and 66933 transitions. Word has length 134 [2022-03-15 13:56:43,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:43,955 INFO L470 AbstractCegarLoop]: Abstraction has 19978 states and 66933 transitions. [2022-03-15 13:56:43,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:43,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19978 states and 66933 transitions. [2022-03-15 13:56:43,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:43,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:43,989 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] [2022-03-15 13:56:43,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:56:43,990 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:43,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash 607818392, now seen corresponding path program 7 times [2022-03-15 13:56:43,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:43,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595675827] [2022-03-15 13:56:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:43,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:44,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:44,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595675827] [2022-03-15 13:56:44,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595675827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:44,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:44,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:56:44,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819179428] [2022-03-15 13:56:44,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:44,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:56:44,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:44,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:56:44,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:56:44,078 INFO L87 Difference]: Start difference. First operand 19978 states and 66933 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:44,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:44,535 INFO L93 Difference]: Finished difference Result 35734 states and 121578 transitions. [2022-03-15 13:56:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:56:44,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:44,632 INFO L225 Difference]: With dead ends: 35734 [2022-03-15 13:56:44,632 INFO L226 Difference]: Without dead ends: 35430 [2022-03-15 13:56:44,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:56:44,633 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:44,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 833 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35430 states. [2022-03-15 13:56:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35430 to 20950. [2022-03-15 13:56:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20950 states, 20949 states have (on average 3.349849634827438) internal successors, (70176), 20949 states have internal predecessors, (70176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 70176 transitions. [2022-03-15 13:56:45,299 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 70176 transitions. Word has length 134 [2022-03-15 13:56:45,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:45,299 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 70176 transitions. [2022-03-15 13:56:45,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 70176 transitions. [2022-03-15 13:56:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:45,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:45,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:45,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:56:45,334 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:45,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1954465832, now seen corresponding path program 8 times [2022-03-15 13:56:45,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:45,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548066112] [2022-03-15 13:56:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:45,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:45,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:45,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548066112] [2022-03-15 13:56:45,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548066112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:45,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:45,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:56:45,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509714061] [2022-03-15 13:56:45,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:45,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:56:45,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:45,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:56:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:45,573 INFO L87 Difference]: Start difference. First operand 20950 states and 70176 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:46,215 INFO L93 Difference]: Finished difference Result 29171 states and 97155 transitions. [2022-03-15 13:56:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:56:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:46,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:46,284 INFO L225 Difference]: With dead ends: 29171 [2022-03-15 13:56:46,284 INFO L226 Difference]: Without dead ends: 28553 [2022-03-15 13:56:46,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-03-15 13:56:46,285 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 384 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:46,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 1462 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:56:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28553 states. [2022-03-15 13:56:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28553 to 20950. [2022-03-15 13:56:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20950 states, 20949 states have (on average 3.3478447658599455) internal successors, (70134), 20949 states have internal predecessors, (70134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:46,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 70134 transitions. [2022-03-15 13:56:46,832 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 70134 transitions. Word has length 134 [2022-03-15 13:56:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:46,832 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 70134 transitions. [2022-03-15 13:56:46,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 70134 transitions. [2022-03-15 13:56:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:46,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:46,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:46,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:56:46,873 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash 314972410, now seen corresponding path program 9 times [2022-03-15 13:56:46,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:46,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383969210] [2022-03-15 13:56:46,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:46,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:46,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:46,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383969210] [2022-03-15 13:56:46,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383969210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:46,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:46,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:56:46,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349198569] [2022-03-15 13:56:46,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:46,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:56:46,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:46,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:56:46,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:56:46,926 INFO L87 Difference]: Start difference. First operand 20950 states and 70134 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:47,064 INFO L93 Difference]: Finished difference Result 20192 states and 66742 transitions. [2022-03-15 13:56:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:56:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:47,113 INFO L225 Difference]: With dead ends: 20192 [2022-03-15 13:56:47,114 INFO L226 Difference]: Without dead ends: 20192 [2022-03-15 13:56:47,114 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 [2022-03-15 13:56:47,114 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:47,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 230 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:56:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20192 states. [2022-03-15 13:56:47,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20192 to 20192. [2022-03-15 13:56:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20192 states, 20191 states have (on average 3.3055321677975336) internal successors, (66742), 20191 states have internal predecessors, (66742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20192 states to 20192 states and 66742 transitions. [2022-03-15 13:56:47,815 INFO L78 Accepts]: Start accepts. Automaton has 20192 states and 66742 transitions. Word has length 134 [2022-03-15 13:56:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:47,816 INFO L470 AbstractCegarLoop]: Abstraction has 20192 states and 66742 transitions. [2022-03-15 13:56:47,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 20192 states and 66742 transitions. [2022-03-15 13:56:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:47,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:47,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:47,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:56:47,878 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 595359392, now seen corresponding path program 10 times [2022-03-15 13:56:47,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:47,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019483278] [2022-03-15 13:56:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:48,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:48,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019483278] [2022-03-15 13:56:48,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019483278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:48,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:48,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:56:48,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921452394] [2022-03-15 13:56:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:48,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:56:48,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:56:48,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:48,052 INFO L87 Difference]: Start difference. First operand 20192 states and 66742 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:48,532 INFO L93 Difference]: Finished difference Result 27008 states and 88615 transitions. [2022-03-15 13:56:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:56:48,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:48,593 INFO L225 Difference]: With dead ends: 27008 [2022-03-15 13:56:48,593 INFO L226 Difference]: Without dead ends: 25258 [2022-03-15 13:56:48,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-03-15 13:56:48,594 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:48,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 941 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:56:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25258 states. [2022-03-15 13:56:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25258 to 19940. [2022-03-15 13:56:49,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19940 states, 19939 states have (on average 3.303876824314158) internal successors, (65876), 19939 states have internal predecessors, (65876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19940 states to 19940 states and 65876 transitions. [2022-03-15 13:56:49,085 INFO L78 Accepts]: Start accepts. Automaton has 19940 states and 65876 transitions. Word has length 134 [2022-03-15 13:56:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:49,085 INFO L470 AbstractCegarLoop]: Abstraction has 19940 states and 65876 transitions. [2022-03-15 13:56:49,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 19940 states and 65876 transitions. [2022-03-15 13:56:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:49,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:49,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:49,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:56:49,233 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:49,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:49,234 INFO L85 PathProgramCache]: Analyzing trace with hash 939090806, now seen corresponding path program 11 times [2022-03-15 13:56:49,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:49,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420397913] [2022-03-15 13:56:49,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:49,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:49,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:49,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420397913] [2022-03-15 13:56:49,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420397913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:49,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:49,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:56:49,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65178254] [2022-03-15 13:56:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:49,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:56:49,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:56:49,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:56:49,494 INFO L87 Difference]: Start difference. First operand 19940 states and 65876 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:49,847 INFO L93 Difference]: Finished difference Result 23478 states and 77447 transitions. [2022-03-15 13:56:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:56:49,847 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:49,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:49,903 INFO L225 Difference]: With dead ends: 23478 [2022-03-15 13:56:49,903 INFO L226 Difference]: Without dead ends: 22930 [2022-03-15 13:56:49,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:49,904 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 249 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:49,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 993 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22930 states. [2022-03-15 13:56:50,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22930 to 19964. [2022-03-15 13:56:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19964 states, 19963 states have (on average 3.301808345439062) internal successors, (65914), 19963 states have internal predecessors, (65914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19964 states to 19964 states and 65914 transitions. [2022-03-15 13:56:50,379 INFO L78 Accepts]: Start accepts. Automaton has 19964 states and 65914 transitions. Word has length 134 [2022-03-15 13:56:50,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:50,379 INFO L470 AbstractCegarLoop]: Abstraction has 19964 states and 65914 transitions. [2022-03-15 13:56:50,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 19964 states and 65914 transitions. [2022-03-15 13:56:50,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:50,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:50,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:50,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:56:50,412 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash -630940832, now seen corresponding path program 12 times [2022-03-15 13:56:50,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:50,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053609906] [2022-03-15 13:56:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:50,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:50,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:50,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053609906] [2022-03-15 13:56:50,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053609906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:50,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:50,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:56:50,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733813291] [2022-03-15 13:56:50,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:50,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:56:50,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:50,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:56:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:56:50,564 INFO L87 Difference]: Start difference. First operand 19964 states and 65914 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:51,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:51,037 INFO L93 Difference]: Finished difference Result 38501 states and 128992 transitions. [2022-03-15 13:56:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:56:51,037 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:51,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:51,129 INFO L225 Difference]: With dead ends: 38501 [2022-03-15 13:56:51,130 INFO L226 Difference]: Without dead ends: 37647 [2022-03-15 13:56:51,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:51,131 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 311 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:51,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 882 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:51,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37647 states. [2022-03-15 13:56:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37647 to 20646. [2022-03-15 13:56:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20646 states, 20645 states have (on average 3.29266166141923) internal successors, (67977), 20645 states have internal predecessors, (67977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20646 states to 20646 states and 67977 transitions. [2022-03-15 13:56:51,711 INFO L78 Accepts]: Start accepts. Automaton has 20646 states and 67977 transitions. Word has length 134 [2022-03-15 13:56:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:51,711 INFO L470 AbstractCegarLoop]: Abstraction has 20646 states and 67977 transitions. [2022-03-15 13:56:51,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:51,711 INFO L276 IsEmpty]: Start isEmpty. Operand 20646 states and 67977 transitions. [2022-03-15 13:56:51,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:51,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:51,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:51,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:56:51,745 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:51,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1577188288, now seen corresponding path program 13 times [2022-03-15 13:56:51,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:51,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077811855] [2022-03-15 13:56:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:51,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:51,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:51,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077811855] [2022-03-15 13:56:51,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077811855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:51,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:51,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:56:51,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839071273] [2022-03-15 13:56:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:51,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:56:51,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:56:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:51,910 INFO L87 Difference]: Start difference. First operand 20646 states and 67977 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:52,573 INFO L93 Difference]: Finished difference Result 28292 states and 92856 transitions. [2022-03-15 13:56:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:56:52,574 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:52,649 INFO L225 Difference]: With dead ends: 28292 [2022-03-15 13:56:52,649 INFO L226 Difference]: Without dead ends: 28292 [2022-03-15 13:56:52,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-15 13:56:52,650 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 320 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:52,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1360 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:56:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28292 states. [2022-03-15 13:56:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28292 to 21914. [2022-03-15 13:56:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21914 states, 21913 states have (on average 3.284990644822708) internal successors, (71984), 21913 states have internal predecessors, (71984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21914 states to 21914 states and 71984 transitions. [2022-03-15 13:56:53,258 INFO L78 Accepts]: Start accepts. Automaton has 21914 states and 71984 transitions. Word has length 134 [2022-03-15 13:56:53,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:53,258 INFO L470 AbstractCegarLoop]: Abstraction has 21914 states and 71984 transitions. [2022-03-15 13:56:53,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 21914 states and 71984 transitions. [2022-03-15 13:56:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:53,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:53,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:53,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 13:56:53,294 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:53,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1664706560, now seen corresponding path program 14 times [2022-03-15 13:56:53,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:53,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822743643] [2022-03-15 13:56:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:53,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:53,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822743643] [2022-03-15 13:56:53,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822743643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:53,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:53,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:56:53,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627166852] [2022-03-15 13:56:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:53,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:56:53,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:56:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:56:53,422 INFO L87 Difference]: Start difference. First operand 21914 states and 71984 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:54,165 INFO L93 Difference]: Finished difference Result 27661 states and 89820 transitions. [2022-03-15 13:56:54,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:56:54,166 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:54,233 INFO L225 Difference]: With dead ends: 27661 [2022-03-15 13:56:54,233 INFO L226 Difference]: Without dead ends: 24741 [2022-03-15 13:56:54,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:56:54,234 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 480 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:54,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1976 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:56:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24741 states. [2022-03-15 13:56:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24741 to 20220. [2022-03-15 13:56:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20220 states, 20219 states have (on average 3.2894307334685196) internal successors, (66509), 20219 states have internal predecessors, (66509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20220 states to 20220 states and 66509 transitions. [2022-03-15 13:56:54,785 INFO L78 Accepts]: Start accepts. Automaton has 20220 states and 66509 transitions. Word has length 134 [2022-03-15 13:56:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:54,785 INFO L470 AbstractCegarLoop]: Abstraction has 20220 states and 66509 transitions. [2022-03-15 13:56:54,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 20220 states and 66509 transitions. [2022-03-15 13:56:54,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:54,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:54,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:54,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 13:56:54,831 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:54,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash 858845650, now seen corresponding path program 15 times [2022-03-15 13:56:54,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:54,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609781074] [2022-03-15 13:56:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:54,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:55,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:55,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609781074] [2022-03-15 13:56:55,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609781074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:55,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:55,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:56:55,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936955563] [2022-03-15 13:56:55,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:55,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:56:55,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:56:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:55,008 INFO L87 Difference]: Start difference. First operand 20220 states and 66509 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:55,288 INFO L93 Difference]: Finished difference Result 21236 states and 69863 transitions. [2022-03-15 13:56:55,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:56:55,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:55,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:55,335 INFO L225 Difference]: With dead ends: 21236 [2022-03-15 13:56:55,335 INFO L226 Difference]: Without dead ends: 21236 [2022-03-15 13:56:55,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:56:55,336 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 175 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:55,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1017 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21236 states. [2022-03-15 13:56:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21236 to 20284. [2022-03-15 13:56:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20284 states, 20283 states have (on average 3.288714687176453) internal successors, (66705), 20283 states have internal predecessors, (66705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20284 states to 20284 states and 66705 transitions. [2022-03-15 13:56:55,819 INFO L78 Accepts]: Start accepts. Automaton has 20284 states and 66705 transitions. Word has length 134 [2022-03-15 13:56:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:55,820 INFO L470 AbstractCegarLoop]: Abstraction has 20284 states and 66705 transitions. [2022-03-15 13:56:55,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 20284 states and 66705 transitions. [2022-03-15 13:56:55,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:55,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:55,855 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] [2022-03-15 13:56:55,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 13:56:55,856 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:55,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2039189400, now seen corresponding path program 16 times [2022-03-15 13:56:55,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:55,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758807534] [2022-03-15 13:56:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:56,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:56,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758807534] [2022-03-15 13:56:56,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758807534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:56,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:56,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:56:56,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720387732] [2022-03-15 13:56:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:56,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:56:56,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:56,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:56:56,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:56:56,029 INFO L87 Difference]: Start difference. First operand 20284 states and 66705 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:56,638 INFO L93 Difference]: Finished difference Result 44537 states and 149878 transitions. [2022-03-15 13:56:56,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:56:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:56,741 INFO L225 Difference]: With dead ends: 44537 [2022-03-15 13:56:56,741 INFO L226 Difference]: Without dead ends: 42129 [2022-03-15 13:56:56,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2022-03-15 13:56:56,742 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 521 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:56,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1093 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:56:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42129 states. [2022-03-15 13:56:57,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42129 to 21916. [2022-03-15 13:56:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21916 states, 21915 states have (on average 3.30134610997034) internal successors, (72349), 21915 states have internal predecessors, (72349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21916 states to 21916 states and 72349 transitions. [2022-03-15 13:56:57,386 INFO L78 Accepts]: Start accepts. Automaton has 21916 states and 72349 transitions. Word has length 134 [2022-03-15 13:56:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:57,386 INFO L470 AbstractCegarLoop]: Abstraction has 21916 states and 72349 transitions. [2022-03-15 13:56:57,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 21916 states and 72349 transitions. [2022-03-15 13:56:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:57,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:57,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:57,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 13:56:57,423 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:57,423 INFO L85 PathProgramCache]: Analyzing trace with hash 321580766, now seen corresponding path program 17 times [2022-03-15 13:56:57,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:57,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401235744] [2022-03-15 13:56:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:57,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:57,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:57,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:57,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401235744] [2022-03-15 13:56:57,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401235744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:57,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:57,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:56:57,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236665043] [2022-03-15 13:56:57,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:57,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:56:57,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:57,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:56:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:56:57,579 INFO L87 Difference]: Start difference. First operand 21916 states and 72349 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:58,065 INFO L93 Difference]: Finished difference Result 27415 states and 90518 transitions. [2022-03-15 13:56:58,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:56:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:58,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:58,130 INFO L225 Difference]: With dead ends: 27415 [2022-03-15 13:56:58,131 INFO L226 Difference]: Without dead ends: 27415 [2022-03-15 13:56:58,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:56:58,131 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 333 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:58,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 846 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:58,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27415 states. [2022-03-15 13:56:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27415 to 23128. [2022-03-15 13:56:58,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23128 states, 23127 states have (on average 3.2938989060405586) internal successors, (76178), 23127 states have internal predecessors, (76178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23128 states to 23128 states and 76178 transitions. [2022-03-15 13:56:58,708 INFO L78 Accepts]: Start accepts. Automaton has 23128 states and 76178 transitions. Word has length 134 [2022-03-15 13:56:58,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:58,709 INFO L470 AbstractCegarLoop]: Abstraction has 23128 states and 76178 transitions. [2022-03-15 13:56:58,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:58,709 INFO L276 IsEmpty]: Start isEmpty. Operand 23128 states and 76178 transitions. [2022-03-15 13:56:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:56:58,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:56:58,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:56:58,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 13:56:58,749 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:56:58,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:56:58,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1501924516, now seen corresponding path program 18 times [2022-03-15 13:56:58,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:56:58,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328730402] [2022-03-15 13:56:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:56:58,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:56:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:56:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:56:58,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:56:58,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328730402] [2022-03-15 13:56:58,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328730402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:56:58,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:56:58,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:56:58,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466204196] [2022-03-15 13:56:58,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:56:58,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:56:58,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:56:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:56:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:56:58,991 INFO L87 Difference]: Start difference. First operand 23128 states and 76178 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:56:59,413 INFO L93 Difference]: Finished difference Result 23916 states and 78425 transitions. [2022-03-15 13:56:59,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:56:59,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:56:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:56:59,469 INFO L225 Difference]: With dead ends: 23916 [2022-03-15 13:56:59,469 INFO L226 Difference]: Without dead ends: 23368 [2022-03-15 13:56:59,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:56:59,470 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:56:59,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1157 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:56:59,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23368 states. [2022-03-15 13:56:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23368 to 23024. [2022-03-15 13:56:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23024 states, 23023 states have (on average 3.2947921643573816) internal successors, (75856), 23023 states have internal predecessors, (75856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23024 states to 23024 states and 75856 transitions. [2022-03-15 13:56:59,996 INFO L78 Accepts]: Start accepts. Automaton has 23024 states and 75856 transitions. Word has length 134 [2022-03-15 13:56:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:56:59,996 INFO L470 AbstractCegarLoop]: Abstraction has 23024 states and 75856 transitions. [2022-03-15 13:56:59,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:56:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 23024 states and 75856 transitions. [2022-03-15 13:57:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:00,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:00,035 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] [2022-03-15 13:57:00,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 13:57:00,036 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:00,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1572281214, now seen corresponding path program 19 times [2022-03-15 13:57:00,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:00,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387866367] [2022-03-15 13:57:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:00,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:00,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:00,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387866367] [2022-03-15 13:57:00,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387866367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:00,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:00,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:00,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000949419] [2022-03-15 13:57:00,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:00,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:00,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:00,206 INFO L87 Difference]: Start difference. First operand 23024 states and 75856 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:00,646 INFO L93 Difference]: Finished difference Result 23440 states and 77068 transitions. [2022-03-15 13:57:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:00,696 INFO L225 Difference]: With dead ends: 23440 [2022-03-15 13:57:00,696 INFO L226 Difference]: Without dead ends: 23440 [2022-03-15 13:57:00,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:00,697 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 197 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:00,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 745 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23440 states. [2022-03-15 13:57:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23440 to 23440. [2022-03-15 13:57:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23440 states, 23439 states have (on average 3.288024233115747) internal successors, (77068), 23439 states have internal predecessors, (77068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 77068 transitions. [2022-03-15 13:57:01,279 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 77068 transitions. Word has length 134 [2022-03-15 13:57:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:01,279 INFO L470 AbstractCegarLoop]: Abstraction has 23440 states and 77068 transitions. [2022-03-15 13:57:01,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 77068 transitions. [2022-03-15 13:57:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:01,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:01,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:01,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 13:57:01,318 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1691636724, now seen corresponding path program 20 times [2022-03-15 13:57:01,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:01,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586899729] [2022-03-15 13:57:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:01,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:01,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586899729] [2022-03-15 13:57:01,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586899729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:01,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:01,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:01,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365232396] [2022-03-15 13:57:01,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:01,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:01,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:01,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:01,485 INFO L87 Difference]: Start difference. First operand 23440 states and 77068 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:01,793 INFO L93 Difference]: Finished difference Result 23716 states and 77855 transitions. [2022-03-15 13:57:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:01,849 INFO L225 Difference]: With dead ends: 23716 [2022-03-15 13:57:01,849 INFO L226 Difference]: Without dead ends: 22992 [2022-03-15 13:57:01,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:01,850 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 183 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:01,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 947 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22992 states. [2022-03-15 13:57:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22992 to 22992. [2022-03-15 13:57:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22992 states, 22991 states have (on average 3.2939846026706103) internal successors, (75732), 22991 states have internal predecessors, (75732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22992 states to 22992 states and 75732 transitions. [2022-03-15 13:57:02,440 INFO L78 Accepts]: Start accepts. Automaton has 22992 states and 75732 transitions. Word has length 134 [2022-03-15 13:57:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:02,440 INFO L470 AbstractCegarLoop]: Abstraction has 22992 states and 75732 transitions. [2022-03-15 13:57:02,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 22992 states and 75732 transitions. [2022-03-15 13:57:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:02,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:02,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:02,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 13:57:02,480 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:02,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1060676230, now seen corresponding path program 21 times [2022-03-15 13:57:02,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:02,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222734360] [2022-03-15 13:57:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:02,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:02,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222734360] [2022-03-15 13:57:02,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222734360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:02,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:02,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:02,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018873130] [2022-03-15 13:57:02,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:02,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:02,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:02,635 INFO L87 Difference]: Start difference. First operand 22992 states and 75732 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:02,966 INFO L93 Difference]: Finished difference Result 25114 states and 82393 transitions. [2022-03-15 13:57:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:02,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:03,178 INFO L225 Difference]: With dead ends: 25114 [2022-03-15 13:57:03,179 INFO L226 Difference]: Without dead ends: 24422 [2022-03-15 13:57:03,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:03,180 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 183 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:03,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 968 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:03,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24422 states. [2022-03-15 13:57:03,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24422 to 22920. [2022-03-15 13:57:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22920 states, 22919 states have (on average 3.2939482525415595) internal successors, (75494), 22919 states have internal predecessors, (75494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:03,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22920 states to 22920 states and 75494 transitions. [2022-03-15 13:57:03,725 INFO L78 Accepts]: Start accepts. Automaton has 22920 states and 75494 transitions. Word has length 134 [2022-03-15 13:57:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:03,725 INFO L470 AbstractCegarLoop]: Abstraction has 22920 states and 75494 transitions. [2022-03-15 13:57:03,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:03,725 INFO L276 IsEmpty]: Start isEmpty. Operand 22920 states and 75494 transitions. [2022-03-15 13:57:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:03,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:03,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:03,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 13:57:03,762 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1095133630, now seen corresponding path program 22 times [2022-03-15 13:57:03,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:03,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700273904] [2022-03-15 13:57:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:03,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:03,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700273904] [2022-03-15 13:57:03,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700273904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:03,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:03,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:03,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521235411] [2022-03-15 13:57:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:03,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:03,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:03,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:03,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:03,957 INFO L87 Difference]: Start difference. First operand 22920 states and 75494 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:04,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:04,240 INFO L93 Difference]: Finished difference Result 23388 states and 76837 transitions. [2022-03-15 13:57:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:04,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:04,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:04,291 INFO L225 Difference]: With dead ends: 23388 [2022-03-15 13:57:04,292 INFO L226 Difference]: Without dead ends: 22620 [2022-03-15 13:57:04,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:04,293 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 128 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:04,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 980 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22620 states. [2022-03-15 13:57:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22620 to 22620. [2022-03-15 13:57:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22620 states, 22619 states have (on average 3.2943100932844067) internal successors, (74514), 22619 states have internal predecessors, (74514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:04,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22620 states to 22620 states and 74514 transitions. [2022-03-15 13:57:04,763 INFO L78 Accepts]: Start accepts. Automaton has 22620 states and 74514 transitions. Word has length 134 [2022-03-15 13:57:04,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:04,764 INFO L470 AbstractCegarLoop]: Abstraction has 22620 states and 74514 transitions. [2022-03-15 13:57:04,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 22620 states and 74514 transitions. [2022-03-15 13:57:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:04,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:04,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:04,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 13:57:04,801 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:04,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:04,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1576421818, now seen corresponding path program 23 times [2022-03-15 13:57:04,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:04,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917506294] [2022-03-15 13:57:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:04,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:04,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:04,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917506294] [2022-03-15 13:57:04,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917506294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:04,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:04,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:04,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664701902] [2022-03-15 13:57:04,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:04,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:04,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:04,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:04,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:04,963 INFO L87 Difference]: Start difference. First operand 22620 states and 74514 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:05,726 INFO L93 Difference]: Finished difference Result 38256 states and 126341 transitions. [2022-03-15 13:57:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:57:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:05,823 INFO L225 Difference]: With dead ends: 38256 [2022-03-15 13:57:05,823 INFO L226 Difference]: Without dead ends: 37668 [2022-03-15 13:57:05,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:57:05,823 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 461 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:05,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1333 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:05,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37668 states. [2022-03-15 13:57:06,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37668 to 25990. [2022-03-15 13:57:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25990 states, 25989 states have (on average 3.2876986417330407) internal successors, (85444), 25989 states have internal predecessors, (85444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25990 states to 25990 states and 85444 transitions. [2022-03-15 13:57:06,527 INFO L78 Accepts]: Start accepts. Automaton has 25990 states and 85444 transitions. Word has length 134 [2022-03-15 13:57:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:06,527 INFO L470 AbstractCegarLoop]: Abstraction has 25990 states and 85444 transitions. [2022-03-15 13:57:06,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 25990 states and 85444 transitions. [2022-03-15 13:57:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:06,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:06,575 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] [2022-03-15 13:57:06,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 13:57:06,576 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:06,576 INFO L85 PathProgramCache]: Analyzing trace with hash -171270522, now seen corresponding path program 24 times [2022-03-15 13:57:06,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:06,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217785828] [2022-03-15 13:57:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:06,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:06,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217785828] [2022-03-15 13:57:06,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217785828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:06,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:06,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:57:06,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963170387] [2022-03-15 13:57:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:06,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:57:06,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:57:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:57:06,753 INFO L87 Difference]: Start difference. First operand 25990 states and 85444 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:07,066 INFO L93 Difference]: Finished difference Result 27838 states and 91214 transitions. [2022-03-15 13:57:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:57:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:07,334 INFO L225 Difference]: With dead ends: 27838 [2022-03-15 13:57:07,334 INFO L226 Difference]: Without dead ends: 26566 [2022-03-15 13:57:07,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:07,335 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 184 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:07,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 703 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:07,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26566 states. [2022-03-15 13:57:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26566 to 26250. [2022-03-15 13:57:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26250 states, 26249 states have (on average 3.2945636024229494) internal successors, (86479), 26249 states have internal predecessors, (86479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26250 states to 26250 states and 86479 transitions. [2022-03-15 13:57:07,967 INFO L78 Accepts]: Start accepts. Automaton has 26250 states and 86479 transitions. Word has length 134 [2022-03-15 13:57:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:07,967 INFO L470 AbstractCegarLoop]: Abstraction has 26250 states and 86479 transitions. [2022-03-15 13:57:07,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 26250 states and 86479 transitions. [2022-03-15 13:57:08,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:08,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:08,026 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] [2022-03-15 13:57:08,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 13:57:08,026 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:08,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:08,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1074885588, now seen corresponding path program 25 times [2022-03-15 13:57:08,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:08,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211506373] [2022-03-15 13:57:08,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:08,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:08,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211506373] [2022-03-15 13:57:08,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211506373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:08,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:08,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:57:08,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384975810] [2022-03-15 13:57:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:08,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:57:08,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:08,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:57:08,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:08,251 INFO L87 Difference]: Start difference. First operand 26250 states and 86479 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:08,858 INFO L93 Difference]: Finished difference Result 49168 states and 163640 transitions. [2022-03-15 13:57:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:57:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:09,155 INFO L225 Difference]: With dead ends: 49168 [2022-03-15 13:57:09,156 INFO L226 Difference]: Without dead ends: 48748 [2022-03-15 13:57:09,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:57:09,156 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 379 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:09,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1654 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:09,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48748 states. [2022-03-15 13:57:09,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48748 to 25854. [2022-03-15 13:57:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25854 states, 25853 states have (on average 3.30015858894519) internal successors, (85319), 25853 states have internal predecessors, (85319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:09,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25854 states to 25854 states and 85319 transitions. [2022-03-15 13:57:09,886 INFO L78 Accepts]: Start accepts. Automaton has 25854 states and 85319 transitions. Word has length 134 [2022-03-15 13:57:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:09,886 INFO L470 AbstractCegarLoop]: Abstraction has 25854 states and 85319 transitions. [2022-03-15 13:57:09,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:09,887 INFO L276 IsEmpty]: Start isEmpty. Operand 25854 states and 85319 transitions. [2022-03-15 13:57:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:09,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:09,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:09,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 13:57:09,933 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:09,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1489755362, now seen corresponding path program 26 times [2022-03-15 13:57:09,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:09,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764917176] [2022-03-15 13:57:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:09,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:09,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764917176] [2022-03-15 13:57:09,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764917176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:09,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:09,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 13:57:09,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133128253] [2022-03-15 13:57:09,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:09,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 13:57:09,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:09,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 13:57:09,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 13:57:09,965 INFO L87 Difference]: Start difference. First operand 25854 states and 85319 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:10,109 INFO L93 Difference]: Finished difference Result 24978 states and 81246 transitions. [2022-03-15 13:57:10,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 13:57:10,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:10,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:10,169 INFO L225 Difference]: With dead ends: 24978 [2022-03-15 13:57:10,169 INFO L226 Difference]: Without dead ends: 24978 [2022-03-15 13:57:10,170 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 [2022-03-15 13:57:10,170 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:10,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 233 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:57:10,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24978 states. [2022-03-15 13:57:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24978 to 24978. [2022-03-15 13:57:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24978 states, 24977 states have (on average 3.2528326059975177) internal successors, (81246), 24977 states have internal predecessors, (81246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24978 states to 24978 states and 81246 transitions. [2022-03-15 13:57:10,734 INFO L78 Accepts]: Start accepts. Automaton has 24978 states and 81246 transitions. Word has length 134 [2022-03-15 13:57:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:10,734 INFO L470 AbstractCegarLoop]: Abstraction has 24978 states and 81246 transitions. [2022-03-15 13:57:10,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24978 states and 81246 transitions. [2022-03-15 13:57:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:10,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:10,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:10,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 13:57:10,778 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1807242936, now seen corresponding path program 27 times [2022-03-15 13:57:10,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:10,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302630328] [2022-03-15 13:57:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:10,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:10,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:10,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302630328] [2022-03-15 13:57:10,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302630328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:10,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:10,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:10,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163227735] [2022-03-15 13:57:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:10,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:10,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:10,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:10,957 INFO L87 Difference]: Start difference. First operand 24978 states and 81246 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:11,475 INFO L93 Difference]: Finished difference Result 30611 states and 99772 transitions. [2022-03-15 13:57:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:11,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:11,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:11,543 INFO L225 Difference]: With dead ends: 30611 [2022-03-15 13:57:11,543 INFO L226 Difference]: Without dead ends: 29699 [2022-03-15 13:57:11,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:11,544 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 287 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:11,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 687 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29699 states. [2022-03-15 13:57:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29699 to 22980. [2022-03-15 13:57:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22980 states, 22979 states have (on average 3.2678967753165935) internal successors, (75093), 22979 states have internal predecessors, (75093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22980 states to 22980 states and 75093 transitions. [2022-03-15 13:57:12,121 INFO L78 Accepts]: Start accepts. Automaton has 22980 states and 75093 transitions. Word has length 134 [2022-03-15 13:57:12,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:12,121 INFO L470 AbstractCegarLoop]: Abstraction has 22980 states and 75093 transitions. [2022-03-15 13:57:12,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22980 states and 75093 transitions. [2022-03-15 13:57:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:12,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:12,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:12,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 13:57:12,158 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1713655916, now seen corresponding path program 28 times [2022-03-15 13:57:12,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:12,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606599976] [2022-03-15 13:57:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:12,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:12,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:12,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606599976] [2022-03-15 13:57:12,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606599976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:12,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:12,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:12,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423979386] [2022-03-15 13:57:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:12,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:12,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:12,300 INFO L87 Difference]: Start difference. First operand 22980 states and 75093 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:12,727 INFO L93 Difference]: Finished difference Result 28084 states and 91347 transitions. [2022-03-15 13:57:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:57:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:12,791 INFO L225 Difference]: With dead ends: 28084 [2022-03-15 13:57:12,791 INFO L226 Difference]: Without dead ends: 27466 [2022-03-15 13:57:12,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-15 13:57:12,792 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 441 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:12,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 845 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27466 states. [2022-03-15 13:57:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27466 to 22874. [2022-03-15 13:57:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22874 states, 22873 states have (on average 3.265771870764657) internal successors, (74698), 22873 states have internal predecessors, (74698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22874 states to 22874 states and 74698 transitions. [2022-03-15 13:57:13,382 INFO L78 Accepts]: Start accepts. Automaton has 22874 states and 74698 transitions. Word has length 134 [2022-03-15 13:57:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:13,382 INFO L470 AbstractCegarLoop]: Abstraction has 22874 states and 74698 transitions. [2022-03-15 13:57:13,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22874 states and 74698 transitions. [2022-03-15 13:57:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:13,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:13,420 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] [2022-03-15 13:57:13,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 13:57:13,420 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash 523103092, now seen corresponding path program 29 times [2022-03-15 13:57:13,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:13,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832886809] [2022-03-15 13:57:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:13,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:13,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:13,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832886809] [2022-03-15 13:57:13,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832886809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:13,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:13,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:13,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425828415] [2022-03-15 13:57:13,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:13,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:13,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:13,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:13,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:13,693 INFO L87 Difference]: Start difference. First operand 22874 states and 74698 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:13,994 INFO L93 Difference]: Finished difference Result 27731 states and 89486 transitions. [2022-03-15 13:57:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:14,054 INFO L225 Difference]: With dead ends: 27731 [2022-03-15 13:57:14,054 INFO L226 Difference]: Without dead ends: 26014 [2022-03-15 13:57:14,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:14,055 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 187 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:14,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 849 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26014 states. [2022-03-15 13:57:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26014 to 24338. [2022-03-15 13:57:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24338 states, 24337 states have (on average 3.2499486378764844) internal successors, (79094), 24337 states have internal predecessors, (79094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24338 states to 24338 states and 79094 transitions. [2022-03-15 13:57:14,586 INFO L78 Accepts]: Start accepts. Automaton has 24338 states and 79094 transitions. Word has length 134 [2022-03-15 13:57:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:14,586 INFO L470 AbstractCegarLoop]: Abstraction has 24338 states and 79094 transitions. [2022-03-15 13:57:14,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24338 states and 79094 transitions. [2022-03-15 13:57:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:14,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:14,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:14,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 13:57:14,624 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:14,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1255525630, now seen corresponding path program 30 times [2022-03-15 13:57:14,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:14,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403424701] [2022-03-15 13:57:14,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:14,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:14,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:14,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403424701] [2022-03-15 13:57:14,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403424701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:14,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:14,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:14,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210732600] [2022-03-15 13:57:14,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:14,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:14,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:14,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:14,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:14,744 INFO L87 Difference]: Start difference. First operand 24338 states and 79094 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:15,063 INFO L93 Difference]: Finished difference Result 33574 states and 109211 transitions. [2022-03-15 13:57:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:57:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:15,134 INFO L225 Difference]: With dead ends: 33574 [2022-03-15 13:57:15,134 INFO L226 Difference]: Without dead ends: 32310 [2022-03-15 13:57:15,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:15,135 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 214 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:15,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 775 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:15,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32310 states. [2022-03-15 13:57:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32310 to 23290. [2022-03-15 13:57:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23290 states, 23289 states have (on average 3.250504530035639) internal successors, (75701), 23289 states have internal predecessors, (75701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23290 states to 23290 states and 75701 transitions. [2022-03-15 13:57:15,708 INFO L78 Accepts]: Start accepts. Automaton has 23290 states and 75701 transitions. Word has length 134 [2022-03-15 13:57:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:15,708 INFO L470 AbstractCegarLoop]: Abstraction has 23290 states and 75701 transitions. [2022-03-15 13:57:15,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 23290 states and 75701 transitions. [2022-03-15 13:57:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:15,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:15,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:15,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 13:57:15,897 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:15,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1988824622, now seen corresponding path program 31 times [2022-03-15 13:57:15,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:15,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822179824] [2022-03-15 13:57:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:16,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:16,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822179824] [2022-03-15 13:57:16,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822179824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:16,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:16,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:16,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447756885] [2022-03-15 13:57:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:16,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:16,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:16,080 INFO L87 Difference]: Start difference. First operand 23290 states and 75701 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:16,395 INFO L93 Difference]: Finished difference Result 24294 states and 78706 transitions. [2022-03-15 13:57:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:16,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:16,446 INFO L225 Difference]: With dead ends: 24294 [2022-03-15 13:57:16,446 INFO L226 Difference]: Without dead ends: 23978 [2022-03-15 13:57:16,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:16,447 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 145 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:16,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 879 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23978 states. [2022-03-15 13:57:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23978 to 23302. [2022-03-15 13:57:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23302 states, 23301 states have (on average 3.249088021973306) internal successors, (75707), 23301 states have internal predecessors, (75707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23302 states to 23302 states and 75707 transitions. [2022-03-15 13:57:16,936 INFO L78 Accepts]: Start accepts. Automaton has 23302 states and 75707 transitions. Word has length 134 [2022-03-15 13:57:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:16,936 INFO L470 AbstractCegarLoop]: Abstraction has 23302 states and 75707 transitions. [2022-03-15 13:57:16,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 23302 states and 75707 transitions. [2022-03-15 13:57:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:16,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:16,974 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] [2022-03-15 13:57:16,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 13:57:16,974 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:16,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash 124516400, now seen corresponding path program 32 times [2022-03-15 13:57:16,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:16,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402131021] [2022-03-15 13:57:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:17,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:17,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402131021] [2022-03-15 13:57:17,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402131021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:17,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:17,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:57:17,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699735986] [2022-03-15 13:57:17,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:17,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:57:17,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:17,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:57:17,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:57:17,077 INFO L87 Difference]: Start difference. First operand 23302 states and 75707 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:17,336 INFO L93 Difference]: Finished difference Result 24794 states and 80118 transitions. [2022-03-15 13:57:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:57:17,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:17,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:17,392 INFO L225 Difference]: With dead ends: 24794 [2022-03-15 13:57:17,393 INFO L226 Difference]: Without dead ends: 24794 [2022-03-15 13:57:17,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:17,393 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 202 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:17,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 681 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24794 states. [2022-03-15 13:57:17,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24794 to 23602. [2022-03-15 13:57:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23602 states, 23601 states have (on average 3.24376085759078) internal successors, (76556), 23601 states have internal predecessors, (76556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23602 states to 23602 states and 76556 transitions. [2022-03-15 13:57:17,866 INFO L78 Accepts]: Start accepts. Automaton has 23602 states and 76556 transitions. Word has length 134 [2022-03-15 13:57:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:17,867 INFO L470 AbstractCegarLoop]: Abstraction has 23602 states and 76556 transitions. [2022-03-15 13:57:17,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 23602 states and 76556 transitions. [2022-03-15 13:57:17,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:17,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:17,904 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] [2022-03-15 13:57:17,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 13:57:17,904 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1304860150, now seen corresponding path program 33 times [2022-03-15 13:57:17,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:17,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340791497] [2022-03-15 13:57:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:17,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:17,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340791497] [2022-03-15 13:57:17,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340791497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:17,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:17,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:17,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201761046] [2022-03-15 13:57:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:17,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:17,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:17,994 INFO L87 Difference]: Start difference. First operand 23602 states and 76556 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:18,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:18,438 INFO L93 Difference]: Finished difference Result 25649 states and 82334 transitions. [2022-03-15 13:57:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:18,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:18,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:18,527 INFO L225 Difference]: With dead ends: 25649 [2022-03-15 13:57:18,527 INFO L226 Difference]: Without dead ends: 22817 [2022-03-15 13:57:18,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:18,529 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 396 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:18,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 690 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:18,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22817 states. [2022-03-15 13:57:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22817 to 18664. [2022-03-15 13:57:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18664 states, 18663 states have (on average 3.2176498955151907) internal successors, (60051), 18663 states have internal predecessors, (60051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18664 states to 18664 states and 60051 transitions. [2022-03-15 13:57:18,921 INFO L78 Accepts]: Start accepts. Automaton has 18664 states and 60051 transitions. Word has length 134 [2022-03-15 13:57:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:18,921 INFO L470 AbstractCegarLoop]: Abstraction has 18664 states and 60051 transitions. [2022-03-15 13:57:18,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 18664 states and 60051 transitions. [2022-03-15 13:57:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:18,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:18,956 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] [2022-03-15 13:57:18,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 13:57:18,956 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash -978686880, now seen corresponding path program 34 times [2022-03-15 13:57:18,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:18,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081457805] [2022-03-15 13:57:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:18,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:19,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:19,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081457805] [2022-03-15 13:57:19,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081457805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:19,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:19,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:19,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407794752] [2022-03-15 13:57:19,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:19,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:19,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:19,294 INFO L87 Difference]: Start difference. First operand 18664 states and 60051 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:19,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:19,532 INFO L93 Difference]: Finished difference Result 19784 states and 63438 transitions. [2022-03-15 13:57:19,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:19,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:19,571 INFO L225 Difference]: With dead ends: 19784 [2022-03-15 13:57:19,571 INFO L226 Difference]: Without dead ends: 19112 [2022-03-15 13:57:19,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:19,572 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 244 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:19,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 874 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19112 states. [2022-03-15 13:57:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19112 to 18608. [2022-03-15 13:57:19,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18608 states, 18607 states have (on average 3.216047723974848) internal successors, (59841), 18607 states have internal predecessors, (59841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18608 states to 18608 states and 59841 transitions. [2022-03-15 13:57:19,878 INFO L78 Accepts]: Start accepts. Automaton has 18608 states and 59841 transitions. Word has length 134 [2022-03-15 13:57:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:19,879 INFO L470 AbstractCegarLoop]: Abstraction has 18608 states and 59841 transitions. [2022-03-15 13:57:19,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 18608 states and 59841 transitions. [2022-03-15 13:57:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:19,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:19,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:19,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 13:57:19,985 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1793566766, now seen corresponding path program 35 times [2022-03-15 13:57:19,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:19,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186556558] [2022-03-15 13:57:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:20,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:20,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186556558] [2022-03-15 13:57:20,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186556558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:20,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:20,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:20,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045302903] [2022-03-15 13:57:20,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:20,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:20,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:20,146 INFO L87 Difference]: Start difference. First operand 18608 states and 59841 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:20,434 INFO L93 Difference]: Finished difference Result 18608 states and 59817 transitions. [2022-03-15 13:57:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:20,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:20,472 INFO L225 Difference]: With dead ends: 18608 [2022-03-15 13:57:20,472 INFO L226 Difference]: Without dead ends: 18162 [2022-03-15 13:57:20,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:20,473 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 121 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:20,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 1160 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:20,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18162 states. [2022-03-15 13:57:20,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18162 to 18162. [2022-03-15 13:57:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18162 states, 18161 states have (on average 3.2267496283244315) internal successors, (58601), 18161 states have internal predecessors, (58601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18162 states to 18162 states and 58601 transitions. [2022-03-15 13:57:20,896 INFO L78 Accepts]: Start accepts. Automaton has 18162 states and 58601 transitions. Word has length 134 [2022-03-15 13:57:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:20,897 INFO L470 AbstractCegarLoop]: Abstraction has 18162 states and 58601 transitions. [2022-03-15 13:57:20,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 18162 states and 58601 transitions. [2022-03-15 13:57:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:20,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:20,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:20,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 13:57:20,926 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1761556582, now seen corresponding path program 36 times [2022-03-15 13:57:20,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:20,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190467103] [2022-03-15 13:57:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:20,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:21,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:21,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190467103] [2022-03-15 13:57:21,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190467103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:21,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:21,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:21,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913143460] [2022-03-15 13:57:21,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:21,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:21,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:21,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:21,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:21,033 INFO L87 Difference]: Start difference. First operand 18162 states and 58601 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:21,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:21,397 INFO L93 Difference]: Finished difference Result 26369 states and 84308 transitions. [2022-03-15 13:57:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:21,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:21,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:21,455 INFO L225 Difference]: With dead ends: 26369 [2022-03-15 13:57:21,455 INFO L226 Difference]: Without dead ends: 26369 [2022-03-15 13:57:21,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:21,455 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 498 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:21,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1034 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26369 states. [2022-03-15 13:57:21,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26369 to 20254. [2022-03-15 13:57:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20254 states, 20253 states have (on average 3.217301140571767) internal successors, (65160), 20253 states have internal predecessors, (65160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20254 states to 20254 states and 65160 transitions. [2022-03-15 13:57:21,931 INFO L78 Accepts]: Start accepts. Automaton has 20254 states and 65160 transitions. Word has length 134 [2022-03-15 13:57:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:21,931 INFO L470 AbstractCegarLoop]: Abstraction has 20254 states and 65160 transitions. [2022-03-15 13:57:21,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 20254 states and 65160 transitions. [2022-03-15 13:57:21,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:21,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:21,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:21,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 13:57:21,963 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:21,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:21,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2137391804, now seen corresponding path program 37 times [2022-03-15 13:57:21,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:21,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426101377] [2022-03-15 13:57:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:21,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:22,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:22,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:22,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426101377] [2022-03-15 13:57:22,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426101377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:22,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:22,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:22,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998877665] [2022-03-15 13:57:22,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:22,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:22,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:22,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:22,093 INFO L87 Difference]: Start difference. First operand 20254 states and 65160 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:22,671 INFO L93 Difference]: Finished difference Result 26312 states and 83919 transitions. [2022-03-15 13:57:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:57:22,671 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:22,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:22,720 INFO L225 Difference]: With dead ends: 26312 [2022-03-15 13:57:22,721 INFO L226 Difference]: Without dead ends: 23423 [2022-03-15 13:57:22,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:57:22,721 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 580 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:22,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 1795 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2022-03-15 13:57:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 19011. [2022-03-15 13:57:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19011 states, 19010 states have (on average 3.2016833245660177) internal successors, (60864), 19010 states have internal predecessors, (60864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19011 states to 19011 states and 60864 transitions. [2022-03-15 13:57:23,188 INFO L78 Accepts]: Start accepts. Automaton has 19011 states and 60864 transitions. Word has length 134 [2022-03-15 13:57:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:23,188 INFO L470 AbstractCegarLoop]: Abstraction has 19011 states and 60864 transitions. [2022-03-15 13:57:23,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 19011 states and 60864 transitions. [2022-03-15 13:57:23,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:23,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:23,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:23,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 13:57:23,218 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:23,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:23,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1363187750, now seen corresponding path program 38 times [2022-03-15 13:57:23,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:23,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659693961] [2022-03-15 13:57:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:23,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:23,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659693961] [2022-03-15 13:57:23,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659693961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:23,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:23,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:23,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837822323] [2022-03-15 13:57:23,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:23,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:23,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:23,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:23,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:23,366 INFO L87 Difference]: Start difference. First operand 19011 states and 60864 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:23,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:23,778 INFO L93 Difference]: Finished difference Result 23691 states and 75049 transitions. [2022-03-15 13:57:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:23,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:23,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:23,826 INFO L225 Difference]: With dead ends: 23691 [2022-03-15 13:57:23,826 INFO L226 Difference]: Without dead ends: 22699 [2022-03-15 13:57:23,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:23,826 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 406 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:23,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 829 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:23,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2022-03-15 13:57:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 19667. [2022-03-15 13:57:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19667 states, 19666 states have (on average 3.194294721854978) internal successors, (62819), 19666 states have internal predecessors, (62819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19667 states to 19667 states and 62819 transitions. [2022-03-15 13:57:24,164 INFO L78 Accepts]: Start accepts. Automaton has 19667 states and 62819 transitions. Word has length 134 [2022-03-15 13:57:24,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:24,165 INFO L470 AbstractCegarLoop]: Abstraction has 19667 states and 62819 transitions. [2022-03-15 13:57:24,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:24,165 INFO L276 IsEmpty]: Start isEmpty. Operand 19667 states and 62819 transitions. [2022-03-15 13:57:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:24,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:24,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:24,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 13:57:24,195 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:24,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash 742725574, now seen corresponding path program 39 times [2022-03-15 13:57:24,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:24,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844638286] [2022-03-15 13:57:24,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:24,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:24,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844638286] [2022-03-15 13:57:24,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844638286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:24,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:24,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:24,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178280114] [2022-03-15 13:57:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:24,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:24,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:24,454 INFO L87 Difference]: Start difference. First operand 19667 states and 62819 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:24,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:24,745 INFO L93 Difference]: Finished difference Result 24596 states and 78113 transitions. [2022-03-15 13:57:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:24,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:24,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:24,797 INFO L225 Difference]: With dead ends: 24596 [2022-03-15 13:57:24,797 INFO L226 Difference]: Without dead ends: 24370 [2022-03-15 13:57:24,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:24,797 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 239 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:24,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1000 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24370 states. [2022-03-15 13:57:25,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24370 to 19489. [2022-03-15 13:57:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19489 states, 19488 states have (on average 3.194376026272578) internal successors, (62252), 19488 states have internal predecessors, (62252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19489 states to 19489 states and 62252 transitions. [2022-03-15 13:57:25,255 INFO L78 Accepts]: Start accepts. Automaton has 19489 states and 62252 transitions. Word has length 134 [2022-03-15 13:57:25,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:25,256 INFO L470 AbstractCegarLoop]: Abstraction has 19489 states and 62252 transitions. [2022-03-15 13:57:25,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 19489 states and 62252 transitions. [2022-03-15 13:57:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:25,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:25,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:25,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 13:57:25,287 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1740413454, now seen corresponding path program 40 times [2022-03-15 13:57:25,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:25,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295350142] [2022-03-15 13:57:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:25,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:25,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:25,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295350142] [2022-03-15 13:57:25,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295350142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:25,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:25,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:25,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637617555] [2022-03-15 13:57:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:25,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:25,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:25,404 INFO L87 Difference]: Start difference. First operand 19489 states and 62252 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:25,901 INFO L93 Difference]: Finished difference Result 23586 states and 74814 transitions. [2022-03-15 13:57:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:57:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:25,947 INFO L225 Difference]: With dead ends: 23586 [2022-03-15 13:57:25,947 INFO L226 Difference]: Without dead ends: 20844 [2022-03-15 13:57:25,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:57:25,948 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 529 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:25,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1854 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20844 states. [2022-03-15 13:57:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20844 to 17613. [2022-03-15 13:57:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17613 states, 17612 states have (on average 3.18947308653191) internal successors, (56173), 17612 states have internal predecessors, (56173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17613 states to 17613 states and 56173 transitions. [2022-03-15 13:57:26,336 INFO L78 Accepts]: Start accepts. Automaton has 17613 states and 56173 transitions. Word has length 134 [2022-03-15 13:57:26,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:26,336 INFO L470 AbstractCegarLoop]: Abstraction has 17613 states and 56173 transitions. [2022-03-15 13:57:26,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:26,336 INFO L276 IsEmpty]: Start isEmpty. Operand 17613 states and 56173 transitions. [2022-03-15 13:57:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:26,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:26,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:26,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 13:57:26,364 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:26,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749652, now seen corresponding path program 41 times [2022-03-15 13:57:26,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:26,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572087923] [2022-03-15 13:57:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:26,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:26,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572087923] [2022-03-15 13:57:26,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572087923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:26,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:26,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:26,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657712017] [2022-03-15 13:57:26,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:26,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:26,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:26,611 INFO L87 Difference]: Start difference. First operand 17613 states and 56173 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:27,324 INFO L93 Difference]: Finished difference Result 18847 states and 59877 transitions. [2022-03-15 13:57:27,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:27,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:27,415 INFO L225 Difference]: With dead ends: 18847 [2022-03-15 13:57:27,415 INFO L226 Difference]: Without dead ends: 18847 [2022-03-15 13:57:27,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:27,416 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 259 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:27,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 1371 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 13:57:27,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18847 states. [2022-03-15 13:57:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18847 to 18105. [2022-03-15 13:57:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18105 states, 18104 states have (on average 3.1841581970835175) internal successors, (57646), 18104 states have internal predecessors, (57646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18105 states to 18105 states and 57646 transitions. [2022-03-15 13:57:27,809 INFO L78 Accepts]: Start accepts. Automaton has 18105 states and 57646 transitions. Word has length 134 [2022-03-15 13:57:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:27,809 INFO L470 AbstractCegarLoop]: Abstraction has 18105 states and 57646 transitions. [2022-03-15 13:57:27,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 18105 states and 57646 transitions. [2022-03-15 13:57:27,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:27,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:27,837 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] [2022-03-15 13:57:27,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 13:57:27,837 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:27,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:27,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1796426514, now seen corresponding path program 42 times [2022-03-15 13:57:27,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:27,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006062733] [2022-03-15 13:57:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:27,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:27,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:27,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006062733] [2022-03-15 13:57:27,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006062733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:27,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:27,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:27,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600503506] [2022-03-15 13:57:27,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:27,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:27,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:27,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:27,952 INFO L87 Difference]: Start difference. First operand 18105 states and 57646 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:28,477 INFO L93 Difference]: Finished difference Result 22859 states and 72285 transitions. [2022-03-15 13:57:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:57:28,478 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:28,521 INFO L225 Difference]: With dead ends: 22859 [2022-03-15 13:57:28,521 INFO L226 Difference]: Without dead ends: 20024 [2022-03-15 13:57:28,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:57:28,522 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 486 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:28,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 1972 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20024 states. [2022-03-15 13:57:28,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20024 to 16805. [2022-03-15 13:57:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16805 states, 16804 states have (on average 3.161092597000714) internal successors, (53119), 16804 states have internal predecessors, (53119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 53119 transitions. [2022-03-15 13:57:28,920 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 53119 transitions. Word has length 134 [2022-03-15 13:57:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:28,920 INFO L470 AbstractCegarLoop]: Abstraction has 16805 states and 53119 transitions. [2022-03-15 13:57:28,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 53119 transitions. [2022-03-15 13:57:28,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:28,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:28,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:28,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 13:57:28,947 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1945088598, now seen corresponding path program 43 times [2022-03-15 13:57:28,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:28,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565815945] [2022-03-15 13:57:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:29,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:29,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565815945] [2022-03-15 13:57:29,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565815945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:29,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:29,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:29,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854187188] [2022-03-15 13:57:29,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:29,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:29,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:29,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:29,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:29,115 INFO L87 Difference]: Start difference. First operand 16805 states and 53119 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:29,450 INFO L93 Difference]: Finished difference Result 17813 states and 56095 transitions. [2022-03-15 13:57:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:29,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:29,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:29,591 INFO L225 Difference]: With dead ends: 17813 [2022-03-15 13:57:29,591 INFO L226 Difference]: Without dead ends: 17201 [2022-03-15 13:57:29,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:29,598 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 202 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:29,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1069 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:29,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17201 states. [2022-03-15 13:57:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17201 to 16849. [2022-03-15 13:57:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16849 states, 16848 states have (on average 3.158594491927825) internal successors, (53216), 16848 states have internal predecessors, (53216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16849 states to 16849 states and 53216 transitions. [2022-03-15 13:57:29,844 INFO L78 Accepts]: Start accepts. Automaton has 16849 states and 53216 transitions. Word has length 134 [2022-03-15 13:57:29,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:29,845 INFO L470 AbstractCegarLoop]: Abstraction has 16849 states and 53216 transitions. [2022-03-15 13:57:29,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 16849 states and 53216 transitions. [2022-03-15 13:57:29,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:29,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:29,880 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] [2022-03-15 13:57:29,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 13:57:29,885 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:29,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1618028618, now seen corresponding path program 44 times [2022-03-15 13:57:29,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:29,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451619564] [2022-03-15 13:57:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:29,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:30,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:30,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451619564] [2022-03-15 13:57:30,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451619564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:30,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:30,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:30,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234929666] [2022-03-15 13:57:30,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:30,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:30,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:30,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:30,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:30,150 INFO L87 Difference]: Start difference. First operand 16849 states and 53216 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:30,582 INFO L93 Difference]: Finished difference Result 17497 states and 55090 transitions. [2022-03-15 13:57:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:30,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:30,616 INFO L225 Difference]: With dead ends: 17497 [2022-03-15 13:57:30,616 INFO L226 Difference]: Without dead ends: 16833 [2022-03-15 13:57:30,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:30,617 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 183 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:30,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 930 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16833 states. [2022-03-15 13:57:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16833 to 16797. [2022-03-15 13:57:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16797 states, 16796 states have (on average 3.1593831864729696) internal successors, (53065), 16796 states have internal predecessors, (53065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16797 states to 16797 states and 53065 transitions. [2022-03-15 13:57:30,868 INFO L78 Accepts]: Start accepts. Automaton has 16797 states and 53065 transitions. Word has length 134 [2022-03-15 13:57:30,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:30,868 INFO L470 AbstractCegarLoop]: Abstraction has 16797 states and 53065 transitions. [2022-03-15 13:57:30,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:30,868 INFO L276 IsEmpty]: Start isEmpty. Operand 16797 states and 53065 transitions. [2022-03-15 13:57:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:30,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:30,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:30,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 13:57:30,895 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:30,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:30,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1215762510, now seen corresponding path program 45 times [2022-03-15 13:57:30,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:30,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464131788] [2022-03-15 13:57:30,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:30,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:31,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:31,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464131788] [2022-03-15 13:57:31,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464131788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:31,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:31,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:31,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232451288] [2022-03-15 13:57:31,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:31,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:31,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:31,056 INFO L87 Difference]: Start difference. First operand 16797 states and 53065 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:31,604 INFO L93 Difference]: Finished difference Result 20151 states and 63227 transitions. [2022-03-15 13:57:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:57:31,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:31,642 INFO L225 Difference]: With dead ends: 20151 [2022-03-15 13:57:31,642 INFO L226 Difference]: Without dead ends: 20151 [2022-03-15 13:57:31,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:57:31,643 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 298 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:31,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1308 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2022-03-15 13:57:31,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 17161. [2022-03-15 13:57:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17161 states, 17160 states have (on average 3.155827505827506) internal successors, (54154), 17160 states have internal predecessors, (54154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17161 states to 17161 states and 54154 transitions. [2022-03-15 13:57:31,920 INFO L78 Accepts]: Start accepts. Automaton has 17161 states and 54154 transitions. Word has length 134 [2022-03-15 13:57:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:31,920 INFO L470 AbstractCegarLoop]: Abstraction has 17161 states and 54154 transitions. [2022-03-15 13:57:31,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 17161 states and 54154 transitions. [2022-03-15 13:57:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:31,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:31,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:31,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 13:57:31,947 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1883384880, now seen corresponding path program 46 times [2022-03-15 13:57:31,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:31,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894691542] [2022-03-15 13:57:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:31,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:32,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:32,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894691542] [2022-03-15 13:57:32,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894691542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:32,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:32,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:32,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966874797] [2022-03-15 13:57:32,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:32,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:32,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:32,090 INFO L87 Difference]: Start difference. First operand 17161 states and 54154 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:32,495 INFO L93 Difference]: Finished difference Result 18419 states and 57888 transitions. [2022-03-15 13:57:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:32,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:32,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:32,530 INFO L225 Difference]: With dead ends: 18419 [2022-03-15 13:57:32,531 INFO L226 Difference]: Without dead ends: 17807 [2022-03-15 13:57:32,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:32,531 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 175 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:32,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1233 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17807 states. [2022-03-15 13:57:32,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17807 to 17173. [2022-03-15 13:57:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17173 states, 17172 states have (on average 3.1534474726298627) internal successors, (54151), 17172 states have internal predecessors, (54151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17173 states to 17173 states and 54151 transitions. [2022-03-15 13:57:32,805 INFO L78 Accepts]: Start accepts. Automaton has 17173 states and 54151 transitions. Word has length 134 [2022-03-15 13:57:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:32,805 INFO L470 AbstractCegarLoop]: Abstraction has 17173 states and 54151 transitions. [2022-03-15 13:57:32,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 17173 states and 54151 transitions. [2022-03-15 13:57:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:32,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:32,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:32,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 13:57:32,832 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:32,833 INFO L85 PathProgramCache]: Analyzing trace with hash -483912430, now seen corresponding path program 47 times [2022-03-15 13:57:32,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:32,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322791811] [2022-03-15 13:57:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:32,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:32,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:32,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322791811] [2022-03-15 13:57:32,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322791811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:32,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:32,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:32,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076974640] [2022-03-15 13:57:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:32,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:32,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:32,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:32,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:32,992 INFO L87 Difference]: Start difference. First operand 17173 states and 54151 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:33,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:33,402 INFO L93 Difference]: Finished difference Result 17897 states and 56262 transitions. [2022-03-15 13:57:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:33,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:33,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:33,438 INFO L225 Difference]: With dead ends: 17897 [2022-03-15 13:57:33,438 INFO L226 Difference]: Without dead ends: 17241 [2022-03-15 13:57:33,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:33,439 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 163 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:33,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1227 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17241 states. [2022-03-15 13:57:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17241 to 17129. [2022-03-15 13:57:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17129 states, 17128 states have (on average 3.153783278841663) internal successors, (54018), 17128 states have internal predecessors, (54018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17129 states to 17129 states and 54018 transitions. [2022-03-15 13:57:33,717 INFO L78 Accepts]: Start accepts. Automaton has 17129 states and 54018 transitions. Word has length 134 [2022-03-15 13:57:33,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:33,717 INFO L470 AbstractCegarLoop]: Abstraction has 17129 states and 54018 transitions. [2022-03-15 13:57:33,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 17129 states and 54018 transitions. [2022-03-15 13:57:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:33,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:33,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:33,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 13:57:33,744 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash -453718160, now seen corresponding path program 48 times [2022-03-15 13:57:33,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:33,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500962407] [2022-03-15 13:57:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:33,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:33,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500962407] [2022-03-15 13:57:33,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500962407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:33,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:33,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:33,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473901385] [2022-03-15 13:57:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:33,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:33,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:33,897 INFO L87 Difference]: Start difference. First operand 17129 states and 54018 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:34,316 INFO L93 Difference]: Finished difference Result 18943 states and 59433 transitions. [2022-03-15 13:57:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:34,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:34,355 INFO L225 Difference]: With dead ends: 18943 [2022-03-15 13:57:34,355 INFO L226 Difference]: Without dead ends: 17223 [2022-03-15 13:57:34,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:34,356 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 212 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:34,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 1312 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17223 states. [2022-03-15 13:57:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17223 to 16721. [2022-03-15 13:57:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16721 states, 16720 states have (on average 3.14066985645933) internal successors, (52512), 16720 states have internal predecessors, (52512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:34,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16721 states to 16721 states and 52512 transitions. [2022-03-15 13:57:34,701 INFO L78 Accepts]: Start accepts. Automaton has 16721 states and 52512 transitions. Word has length 134 [2022-03-15 13:57:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:34,702 INFO L470 AbstractCegarLoop]: Abstraction has 16721 states and 52512 transitions. [2022-03-15 13:57:34,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 16721 states and 52512 transitions. [2022-03-15 13:57:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:34,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:34,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:34,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 13:57:34,728 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 329242458, now seen corresponding path program 49 times [2022-03-15 13:57:34,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:34,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085099135] [2022-03-15 13:57:34,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:34,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:34,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:34,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085099135] [2022-03-15 13:57:34,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085099135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:34,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:34,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:34,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344895975] [2022-03-15 13:57:34,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:34,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:34,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:34,904 INFO L87 Difference]: Start difference. First operand 16721 states and 52512 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:35,258 INFO L93 Difference]: Finished difference Result 14081 states and 43010 transitions. [2022-03-15 13:57:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:35,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:35,286 INFO L225 Difference]: With dead ends: 14081 [2022-03-15 13:57:35,286 INFO L226 Difference]: Without dead ends: 13917 [2022-03-15 13:57:35,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:35,287 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 256 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:35,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1189 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:35,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13917 states. [2022-03-15 13:57:35,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13917 to 13119. [2022-03-15 13:57:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13119 states, 13118 states have (on average 3.067998170452813) internal successors, (40246), 13118 states have internal predecessors, (40246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13119 states to 13119 states and 40246 transitions. [2022-03-15 13:57:35,491 INFO L78 Accepts]: Start accepts. Automaton has 13119 states and 40246 transitions. Word has length 134 [2022-03-15 13:57:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:35,492 INFO L470 AbstractCegarLoop]: Abstraction has 13119 states and 40246 transitions. [2022-03-15 13:57:35,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 13119 states and 40246 transitions. [2022-03-15 13:57:35,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:35,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:35,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:35,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 13:57:35,512 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1531844724, now seen corresponding path program 50 times [2022-03-15 13:57:35,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:35,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394393075] [2022-03-15 13:57:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:35,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:35,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:35,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394393075] [2022-03-15 13:57:35,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394393075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:35,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:35,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:35,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591264032] [2022-03-15 13:57:35,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:35,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:35,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:35,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:35,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:35,746 INFO L87 Difference]: Start difference. First operand 13119 states and 40246 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:36,017 INFO L93 Difference]: Finished difference Result 11714 states and 35377 transitions. [2022-03-15 13:57:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:57:36,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:36,040 INFO L225 Difference]: With dead ends: 11714 [2022-03-15 13:57:36,040 INFO L226 Difference]: Without dead ends: 11252 [2022-03-15 13:57:36,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:36,040 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:36,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 766 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:36,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-03-15 13:57:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 9998. [2022-03-15 13:57:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9998 states, 9997 states have (on average 3.0345103531059316) internal successors, (30336), 9997 states have internal predecessors, (30336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9998 states to 9998 states and 30336 transitions. [2022-03-15 13:57:36,207 INFO L78 Accepts]: Start accepts. Automaton has 9998 states and 30336 transitions. Word has length 134 [2022-03-15 13:57:36,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:36,207 INFO L470 AbstractCegarLoop]: Abstraction has 9998 states and 30336 transitions. [2022-03-15 13:57:36,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9998 states and 30336 transitions. [2022-03-15 13:57:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:36,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:36,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:36,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 13:57:36,226 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:36,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash -150451716, now seen corresponding path program 51 times [2022-03-15 13:57:36,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:36,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215096220] [2022-03-15 13:57:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:36,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:36,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215096220] [2022-03-15 13:57:36,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215096220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:36,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:36,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:36,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579961644] [2022-03-15 13:57:36,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:36,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:36,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:36,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:36,456 INFO L87 Difference]: Start difference. First operand 9998 states and 30336 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:36,762 INFO L93 Difference]: Finished difference Result 10936 states and 33102 transitions. [2022-03-15 13:57:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:36,763 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:36,789 INFO L225 Difference]: With dead ends: 10936 [2022-03-15 13:57:36,789 INFO L226 Difference]: Without dead ends: 10364 [2022-03-15 13:57:36,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:36,790 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 242 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:36,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 884 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2022-03-15 13:57:36,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 9950. [2022-03-15 13:57:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9950 states, 9949 states have (on average 3.0282440446276007) internal successors, (30128), 9949 states have internal predecessors, (30128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9950 states to 9950 states and 30128 transitions. [2022-03-15 13:57:36,943 INFO L78 Accepts]: Start accepts. Automaton has 9950 states and 30128 transitions. Word has length 134 [2022-03-15 13:57:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:36,943 INFO L470 AbstractCegarLoop]: Abstraction has 9950 states and 30128 transitions. [2022-03-15 13:57:36,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9950 states and 30128 transitions. [2022-03-15 13:57:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:36,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:36,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:36,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 13:57:36,959 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:36,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:36,959 INFO L85 PathProgramCache]: Analyzing trace with hash 511737310, now seen corresponding path program 52 times [2022-03-15 13:57:36,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:36,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203392687] [2022-03-15 13:57:36,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:36,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:37,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:37,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203392687] [2022-03-15 13:57:37,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203392687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:37,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:37,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:37,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992357865] [2022-03-15 13:57:37,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:37,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:37,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:37,198 INFO L87 Difference]: Start difference. First operand 9950 states and 30128 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:37,465 INFO L93 Difference]: Finished difference Result 10433 states and 31426 transitions. [2022-03-15 13:57:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:37,465 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:37,482 INFO L225 Difference]: With dead ends: 10433 [2022-03-15 13:57:37,482 INFO L226 Difference]: Without dead ends: 9759 [2022-03-15 13:57:37,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:37,485 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 242 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:37,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1036 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9759 states. [2022-03-15 13:57:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9759 to 9244. [2022-03-15 13:57:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.016444877204371) internal successors, (27881), 9243 states have internal predecessors, (27881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 27881 transitions. [2022-03-15 13:57:37,621 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 27881 transitions. Word has length 134 [2022-03-15 13:57:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:37,621 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 27881 transitions. [2022-03-15 13:57:37,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 27881 transitions. [2022-03-15 13:57:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:37,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:37,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:37,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 13:57:37,634 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1843283084, now seen corresponding path program 53 times [2022-03-15 13:57:37,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:37,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734316124] [2022-03-15 13:57:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:37,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:37,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734316124] [2022-03-15 13:57:37,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734316124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:37,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:37,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:37,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230259632] [2022-03-15 13:57:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:37,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:37,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:37,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:37,811 INFO L87 Difference]: Start difference. First operand 9244 states and 27881 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:38,048 INFO L93 Difference]: Finished difference Result 10749 states and 32436 transitions. [2022-03-15 13:57:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:38,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:38,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:38,065 INFO L225 Difference]: With dead ends: 10749 [2022-03-15 13:57:38,065 INFO L226 Difference]: Without dead ends: 9864 [2022-03-15 13:57:38,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:38,065 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 208 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:38,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 788 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-03-15 13:57:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 9404. [2022-03-15 13:57:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9404 states, 9403 states have (on average 3.0140380729554397) internal successors, (28341), 9403 states have internal predecessors, (28341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9404 states to 9404 states and 28341 transitions. [2022-03-15 13:57:38,202 INFO L78 Accepts]: Start accepts. Automaton has 9404 states and 28341 transitions. Word has length 134 [2022-03-15 13:57:38,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:38,202 INFO L470 AbstractCegarLoop]: Abstraction has 9404 states and 28341 transitions. [2022-03-15 13:57:38,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 9404 states and 28341 transitions. [2022-03-15 13:57:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:38,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:38,219 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] [2022-03-15 13:57:38,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 13:57:38,219 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1110860546, now seen corresponding path program 54 times [2022-03-15 13:57:38,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:38,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518573415] [2022-03-15 13:57:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:38,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:38,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518573415] [2022-03-15 13:57:38,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518573415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:38,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:38,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:38,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655124366] [2022-03-15 13:57:38,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:38,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:38,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:38,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:38,313 INFO L87 Difference]: Start difference. First operand 9404 states and 28341 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:38,613 INFO L93 Difference]: Finished difference Result 11867 states and 35716 transitions. [2022-03-15 13:57:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:38,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:38,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:38,633 INFO L225 Difference]: With dead ends: 11867 [2022-03-15 13:57:38,633 INFO L226 Difference]: Without dead ends: 10659 [2022-03-15 13:57:38,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:38,634 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 354 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:38,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1024 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2022-03-15 13:57:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10061. [2022-03-15 13:57:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10060 states have (on average 3.0102385685884694) internal successors, (30283), 10060 states have internal predecessors, (30283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 30283 transitions. [2022-03-15 13:57:38,778 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 30283 transitions. Word has length 134 [2022-03-15 13:57:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:38,778 INFO L470 AbstractCegarLoop]: Abstraction has 10061 states and 30283 transitions. [2022-03-15 13:57:38,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 30283 transitions. [2022-03-15 13:57:38,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:38,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:38,792 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] [2022-03-15 13:57:38,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 13:57:38,792 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:38,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:38,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1511839170, now seen corresponding path program 55 times [2022-03-15 13:57:38,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:38,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090521983] [2022-03-15 13:57:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:38,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:38,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:38,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090521983] [2022-03-15 13:57:38,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090521983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:38,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:38,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:38,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643091348] [2022-03-15 13:57:38,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:38,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:38,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:38,932 INFO L87 Difference]: Start difference. First operand 10061 states and 30283 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:39,311 INFO L93 Difference]: Finished difference Result 14504 states and 43797 transitions. [2022-03-15 13:57:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:57:39,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:39,333 INFO L225 Difference]: With dead ends: 14504 [2022-03-15 13:57:39,333 INFO L226 Difference]: Without dead ends: 11629 [2022-03-15 13:57:39,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:57:39,333 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 547 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:39,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1109 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2022-03-15 13:57:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 9622. [2022-03-15 13:57:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9622 states, 9621 states have (on average 3.0041575719779647) internal successors, (28903), 9621 states have internal predecessors, (28903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 28903 transitions. [2022-03-15 13:57:39,478 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 28903 transitions. Word has length 134 [2022-03-15 13:57:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:39,478 INFO L470 AbstractCegarLoop]: Abstraction has 9622 states and 28903 transitions. [2022-03-15 13:57:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 28903 transitions. [2022-03-15 13:57:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:39,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:39,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:39,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 13:57:39,492 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1638115794, now seen corresponding path program 56 times [2022-03-15 13:57:39,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:39,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838693098] [2022-03-15 13:57:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:39,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:39,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838693098] [2022-03-15 13:57:39,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838693098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:39,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:39,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:39,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981117207] [2022-03-15 13:57:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:39,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:39,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:39,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:39,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:39,665 INFO L87 Difference]: Start difference. First operand 9622 states and 28903 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:39,933 INFO L93 Difference]: Finished difference Result 10489 states and 31458 transitions. [2022-03-15 13:57:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:39,950 INFO L225 Difference]: With dead ends: 10489 [2022-03-15 13:57:39,950 INFO L226 Difference]: Without dead ends: 9510 [2022-03-15 13:57:39,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:39,950 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 135 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:39,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1099 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9510 states. [2022-03-15 13:57:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9510 to 9510. [2022-03-15 13:57:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9510 states, 9509 states have (on average 3.002103270585761) internal successors, (28547), 9509 states have internal predecessors, (28547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9510 states to 9510 states and 28547 transitions. [2022-03-15 13:57:40,090 INFO L78 Accepts]: Start accepts. Automaton has 9510 states and 28547 transitions. Word has length 134 [2022-03-15 13:57:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:40,090 INFO L470 AbstractCegarLoop]: Abstraction has 9510 states and 28547 transitions. [2022-03-15 13:57:40,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 9510 states and 28547 transitions. [2022-03-15 13:57:40,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:40,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:40,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:40,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 13:57:40,104 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:40,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1006984098, now seen corresponding path program 57 times [2022-03-15 13:57:40,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:40,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517592166] [2022-03-15 13:57:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:40,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:40,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:40,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517592166] [2022-03-15 13:57:40,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517592166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:40,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:40,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:40,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586078532] [2022-03-15 13:57:40,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:40,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:40,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:40,260 INFO L87 Difference]: Start difference. First operand 9510 states and 28547 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:40,567 INFO L93 Difference]: Finished difference Result 10948 states and 32868 transitions. [2022-03-15 13:57:40,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:40,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:40,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:40,584 INFO L225 Difference]: With dead ends: 10948 [2022-03-15 13:57:40,584 INFO L226 Difference]: Without dead ends: 9611 [2022-03-15 13:57:40,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:40,585 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 206 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:40,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1360 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:40,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2022-03-15 13:57:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 9267. [2022-03-15 13:57:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 9266 states have (on average 2.9888840923807467) internal successors, (27695), 9266 states have internal predecessors, (27695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 27695 transitions. [2022-03-15 13:57:40,715 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 27695 transitions. Word has length 134 [2022-03-15 13:57:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:40,715 INFO L470 AbstractCegarLoop]: Abstraction has 9267 states and 27695 transitions. [2022-03-15 13:57:40,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 27695 transitions. [2022-03-15 13:57:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:40,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:40,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:40,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 13:57:40,728 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:40,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:40,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1353275712, now seen corresponding path program 58 times [2022-03-15 13:57:40,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:40,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406454028] [2022-03-15 13:57:40,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:40,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:40,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406454028] [2022-03-15 13:57:40,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406454028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:40,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:40,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 13:57:40,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770454686] [2022-03-15 13:57:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:40,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 13:57:40,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 13:57:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:40,806 INFO L87 Difference]: Start difference. First operand 9267 states and 27695 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:40,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:40,987 INFO L93 Difference]: Finished difference Result 9369 states and 27726 transitions. [2022-03-15 13:57:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:40,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:41,001 INFO L225 Difference]: With dead ends: 9369 [2022-03-15 13:57:41,001 INFO L226 Difference]: Without dead ends: 8290 [2022-03-15 13:57:41,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:41,001 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 426 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:41,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 581 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2022-03-15 13:57:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 8266. [2022-03-15 13:57:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8265 states have (on average 2.9496672716273444) internal successors, (24379), 8265 states have internal predecessors, (24379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:41,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 24379 transitions. [2022-03-15 13:57:41,101 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 24379 transitions. Word has length 134 [2022-03-15 13:57:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:41,101 INFO L470 AbstractCegarLoop]: Abstraction has 8266 states and 24379 transitions. [2022-03-15 13:57:41,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 24379 transitions. [2022-03-15 13:57:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:41,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:41,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:41,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 13:57:41,113 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:41,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1860242304, now seen corresponding path program 59 times [2022-03-15 13:57:41,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:41,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307811264] [2022-03-15 13:57:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:41,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:41,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:41,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:41,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307811264] [2022-03-15 13:57:41,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307811264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:41,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:41,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:41,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678676760] [2022-03-15 13:57:41,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:41,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:41,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:41,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:41,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:41,269 INFO L87 Difference]: Start difference. First operand 8266 states and 24379 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:41,595 INFO L93 Difference]: Finished difference Result 9536 states and 28197 transitions. [2022-03-15 13:57:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:41,612 INFO L225 Difference]: With dead ends: 9536 [2022-03-15 13:57:41,612 INFO L226 Difference]: Without dead ends: 8790 [2022-03-15 13:57:41,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:41,613 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 238 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:41,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1144 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8790 states. [2022-03-15 13:57:41,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8790 to 8475. [2022-03-15 13:57:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8475 states, 8474 states have (on average 2.9503186216662733) internal successors, (25001), 8474 states have internal predecessors, (25001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 25001 transitions. [2022-03-15 13:57:41,732 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 25001 transitions. Word has length 134 [2022-03-15 13:57:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:41,732 INFO L470 AbstractCegarLoop]: Abstraction has 8475 states and 25001 transitions. [2022-03-15 13:57:41,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 25001 transitions. [2022-03-15 13:57:41,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:41,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:41,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:41,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 13:57:41,744 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:41,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1088490750, now seen corresponding path program 60 times [2022-03-15 13:57:41,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:41,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9834590] [2022-03-15 13:57:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:41,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:41,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:41,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9834590] [2022-03-15 13:57:41,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9834590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:41,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:41,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:41,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884766749] [2022-03-15 13:57:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:41,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:41,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:41,929 INFO L87 Difference]: Start difference. First operand 8475 states and 25001 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:42,179 INFO L93 Difference]: Finished difference Result 8475 states and 24941 transitions. [2022-03-15 13:57:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:57:42,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:42,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:42,192 INFO L225 Difference]: With dead ends: 8475 [2022-03-15 13:57:42,192 INFO L226 Difference]: Without dead ends: 7796 [2022-03-15 13:57:42,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:42,193 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 249 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:42,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 961 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:42,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-03-15 13:57:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7796. [2022-03-15 13:57:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7795 states have (on average 2.9502245028864658) internal successors, (22997), 7795 states have internal predecessors, (22997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 22997 transitions. [2022-03-15 13:57:42,291 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 22997 transitions. Word has length 134 [2022-03-15 13:57:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:42,291 INFO L470 AbstractCegarLoop]: Abstraction has 7796 states and 22997 transitions. [2022-03-15 13:57:42,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 22997 transitions. [2022-03-15 13:57:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:42,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:42,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:42,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 13:57:42,301 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:42,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:42,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2114227228, now seen corresponding path program 61 times [2022-03-15 13:57:42,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:42,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105428786] [2022-03-15 13:57:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:42,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:42,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:42,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105428786] [2022-03-15 13:57:42,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105428786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:42,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:42,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:42,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067369713] [2022-03-15 13:57:42,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:42,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:42,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:42,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:42,469 INFO L87 Difference]: Start difference. First operand 7796 states and 22997 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:42,842 INFO L93 Difference]: Finished difference Result 8732 states and 25671 transitions. [2022-03-15 13:57:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:42,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:42,854 INFO L225 Difference]: With dead ends: 8732 [2022-03-15 13:57:42,854 INFO L226 Difference]: Without dead ends: 6916 [2022-03-15 13:57:42,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-03-15 13:57:42,855 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 200 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:42,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 1399 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2022-03-15 13:57:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 6828. [2022-03-15 13:57:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6828 states, 6827 states have (on average 2.925882525267321) internal successors, (19975), 6827 states have internal predecessors, (19975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6828 states to 6828 states and 19975 transitions. [2022-03-15 13:57:42,956 INFO L78 Accepts]: Start accepts. Automaton has 6828 states and 19975 transitions. Word has length 134 [2022-03-15 13:57:42,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:42,956 INFO L470 AbstractCegarLoop]: Abstraction has 6828 states and 19975 transitions. [2022-03-15 13:57:42,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6828 states and 19975 transitions. [2022-03-15 13:57:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:42,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:42,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 13:57:42,966 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -781267618, now seen corresponding path program 62 times [2022-03-15 13:57:42,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:42,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708617225] [2022-03-15 13:57:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:43,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:43,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708617225] [2022-03-15 13:57:43,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708617225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:43,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:43,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:43,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931947792] [2022-03-15 13:57:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:43,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:43,111 INFO L87 Difference]: Start difference. First operand 6828 states and 19975 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:43,287 INFO L93 Difference]: Finished difference Result 7922 states and 23060 transitions. [2022-03-15 13:57:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:43,299 INFO L225 Difference]: With dead ends: 7922 [2022-03-15 13:57:43,300 INFO L226 Difference]: Without dead ends: 7006 [2022-03-15 13:57:43,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:43,300 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 249 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:43,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 805 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:43,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2022-03-15 13:57:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 5928. [2022-03-15 13:57:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 2.8913446937742533) internal successors, (17137), 5927 states have internal predecessors, (17137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 17137 transitions. [2022-03-15 13:57:43,393 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 17137 transitions. Word has length 134 [2022-03-15 13:57:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:43,393 INFO L470 AbstractCegarLoop]: Abstraction has 5928 states and 17137 transitions. [2022-03-15 13:57:43,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 17137 transitions. [2022-03-15 13:57:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:43,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:43,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:43,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 13:57:43,400 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:43,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2369660, now seen corresponding path program 63 times [2022-03-15 13:57:43,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:43,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569481328] [2022-03-15 13:57:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:43,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:43,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:43,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569481328] [2022-03-15 13:57:43,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569481328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:43,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:43,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:43,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942301599] [2022-03-15 13:57:43,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:43,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:43,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:43,549 INFO L87 Difference]: Start difference. First operand 5928 states and 17137 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:43,824 INFO L93 Difference]: Finished difference Result 7737 states and 22359 transitions. [2022-03-15 13:57:43,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:57:43,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:43,837 INFO L225 Difference]: With dead ends: 7737 [2022-03-15 13:57:43,837 INFO L226 Difference]: Without dead ends: 7056 [2022-03-15 13:57:43,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:43,837 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 417 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:43,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1435 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2022-03-15 13:57:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 5802. [2022-03-15 13:57:43,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5801 states have (on average 2.885881744526806) internal successors, (16741), 5801 states have internal predecessors, (16741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 16741 transitions. [2022-03-15 13:57:43,938 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 16741 transitions. Word has length 134 [2022-03-15 13:57:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:43,938 INFO L470 AbstractCegarLoop]: Abstraction has 5802 states and 16741 transitions. [2022-03-15 13:57:43,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 16741 transitions. [2022-03-15 13:57:43,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:43,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:43,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:43,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 13:57:43,946 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash 480005168, now seen corresponding path program 64 times [2022-03-15 13:57:43,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:43,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716138204] [2022-03-15 13:57:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:43,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:44,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:44,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716138204] [2022-03-15 13:57:44,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716138204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:44,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:44,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:44,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55909658] [2022-03-15 13:57:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:44,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:44,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:44,171 INFO L87 Difference]: Start difference. First operand 5802 states and 16741 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:44,386 INFO L93 Difference]: Finished difference Result 7443 states and 21548 transitions. [2022-03-15 13:57:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:44,399 INFO L225 Difference]: With dead ends: 7443 [2022-03-15 13:57:44,399 INFO L226 Difference]: Without dead ends: 6714 [2022-03-15 13:57:44,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:44,400 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 395 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:44,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 1293 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:44,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6714 states. [2022-03-15 13:57:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 5598. [2022-03-15 13:57:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5597 states have (on average 2.895122386993032) internal successors, (16204), 5597 states have internal predecessors, (16204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 16204 transitions. [2022-03-15 13:57:44,485 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 16204 transitions. Word has length 134 [2022-03-15 13:57:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:44,485 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 16204 transitions. [2022-03-15 13:57:44,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 16204 transitions. [2022-03-15 13:57:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:44,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:44,493 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] [2022-03-15 13:57:44,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 13:57:44,493 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:44,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:44,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1439989362, now seen corresponding path program 65 times [2022-03-15 13:57:44,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:44,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912159949] [2022-03-15 13:57:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:44,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:44,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:44,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:44,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912159949] [2022-03-15 13:57:44,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912159949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:44,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:44,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-15 13:57:44,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854800525] [2022-03-15 13:57:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:44,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 13:57:44,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:44,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 13:57:44,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:44,762 INFO L87 Difference]: Start difference. First operand 5598 states and 16204 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:45,129 INFO L93 Difference]: Finished difference Result 6453 states and 18598 transitions. [2022-03-15 13:57:45,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:45,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:45,138 INFO L225 Difference]: With dead ends: 6453 [2022-03-15 13:57:45,138 INFO L226 Difference]: Without dead ends: 5760 [2022-03-15 13:57:45,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-03-15 13:57:45,138 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 219 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:45,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2018 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:57:45,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2022-03-15 13:57:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5598. [2022-03-15 13:57:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5597 states have (on average 2.883330355547615) internal successors, (16138), 5597 states have internal predecessors, (16138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 16138 transitions. [2022-03-15 13:57:45,215 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 16138 transitions. Word has length 134 [2022-03-15 13:57:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:45,216 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 16138 transitions. [2022-03-15 13:57:45,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 16138 transitions. [2022-03-15 13:57:45,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:45,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:45,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:45,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 13:57:45,223 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:45,223 INFO L85 PathProgramCache]: Analyzing trace with hash 964872656, now seen corresponding path program 66 times [2022-03-15 13:57:45,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:45,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912974170] [2022-03-15 13:57:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:45,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:45,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:45,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912974170] [2022-03-15 13:57:45,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912974170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:45,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:45,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:45,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10660234] [2022-03-15 13:57:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:45,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:45,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:45,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:45,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:45,402 INFO L87 Difference]: Start difference. First operand 5598 states and 16138 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:45,601 INFO L93 Difference]: Finished difference Result 6063 states and 17508 transitions. [2022-03-15 13:57:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:45,610 INFO L225 Difference]: With dead ends: 6063 [2022-03-15 13:57:45,611 INFO L226 Difference]: Without dead ends: 5538 [2022-03-15 13:57:45,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:45,611 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 155 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:45,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 978 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2022-03-15 13:57:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5538. [2022-03-15 13:57:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5538 states, 5537 states have (on average 2.878454036481849) internal successors, (15938), 5537 states have internal predecessors, (15938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 15938 transitions. [2022-03-15 13:57:45,692 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 15938 transitions. Word has length 134 [2022-03-15 13:57:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:45,692 INFO L470 AbstractCegarLoop]: Abstraction has 5538 states and 15938 transitions. [2022-03-15 13:57:45,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 15938 transitions. [2022-03-15 13:57:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:45,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:45,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:45,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 13:57:45,700 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1991106770, now seen corresponding path program 67 times [2022-03-15 13:57:45,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:45,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314145002] [2022-03-15 13:57:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:45,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:45,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314145002] [2022-03-15 13:57:45,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314145002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:45,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:45,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:57:45,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979665293] [2022-03-15 13:57:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:45,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:57:45,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:45,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:57:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:57:45,928 INFO L87 Difference]: Start difference. First operand 5538 states and 15938 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:46,143 INFO L93 Difference]: Finished difference Result 5538 states and 15848 transitions. [2022-03-15 13:57:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:57:46,144 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:46,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:46,150 INFO L225 Difference]: With dead ends: 5538 [2022-03-15 13:57:46,150 INFO L226 Difference]: Without dead ends: 4667 [2022-03-15 13:57:46,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:46,151 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 180 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:46,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1012 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2022-03-15 13:57:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 4667. [2022-03-15 13:57:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4667 states, 4666 states have (on average 2.8641234462066008) internal successors, (13364), 4666 states have internal predecessors, (13364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 13364 transitions. [2022-03-15 13:57:46,202 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 13364 transitions. Word has length 134 [2022-03-15 13:57:46,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:46,203 INFO L470 AbstractCegarLoop]: Abstraction has 4667 states and 13364 transitions. [2022-03-15 13:57:46,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 13364 transitions. [2022-03-15 13:57:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:46,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:46,208 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] [2022-03-15 13:57:46,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 13:57:46,209 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:46,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1487259344, now seen corresponding path program 68 times [2022-03-15 13:57:46,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:46,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058051842] [2022-03-15 13:57:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:46,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:46,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:46,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058051842] [2022-03-15 13:57:46,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058051842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:46,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:46,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:46,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208772781] [2022-03-15 13:57:46,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:46,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:46,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:46,313 INFO L87 Difference]: Start difference. First operand 4667 states and 13364 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:46,625 INFO L93 Difference]: Finished difference Result 5267 states and 15084 transitions. [2022-03-15 13:57:46,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:57:46,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:46,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:46,631 INFO L225 Difference]: With dead ends: 5267 [2022-03-15 13:57:46,631 INFO L226 Difference]: Without dead ends: 4256 [2022-03-15 13:57:46,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=262, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:57:46,632 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 455 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:46,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1196 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:46,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2022-03-15 13:57:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 3779. [2022-03-15 13:57:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3778 states have (on average 2.887771307570143) internal successors, (10910), 3778 states have internal predecessors, (10910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 10910 transitions. [2022-03-15 13:57:46,676 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 10910 transitions. Word has length 134 [2022-03-15 13:57:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:46,676 INFO L470 AbstractCegarLoop]: Abstraction has 3779 states and 10910 transitions. [2022-03-15 13:57:46,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 10910 transitions. [2022-03-15 13:57:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:46,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:46,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:46,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 13:57:46,681 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:46,681 INFO L85 PathProgramCache]: Analyzing trace with hash 555405876, now seen corresponding path program 69 times [2022-03-15 13:57:46,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:46,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655222404] [2022-03-15 13:57:46,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:46,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:46,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:46,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655222404] [2022-03-15 13:57:46,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655222404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:46,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:46,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:57:46,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080126058] [2022-03-15 13:57:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:46,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:57:46,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:46,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:57:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:57:46,797 INFO L87 Difference]: Start difference. First operand 3779 states and 10910 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:46,997 INFO L93 Difference]: Finished difference Result 6986 states and 20360 transitions. [2022-03-15 13:57:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:46,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:47,008 INFO L225 Difference]: With dead ends: 6986 [2022-03-15 13:57:47,008 INFO L226 Difference]: Without dead ends: 6620 [2022-03-15 13:57:47,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-03-15 13:57:47,009 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 375 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:47,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 916 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6620 states. [2022-03-15 13:57:47,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6620 to 3803. [2022-03-15 13:57:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3802 states have (on average 2.8737506575486584) internal successors, (10926), 3802 states have internal predecessors, (10926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 10926 transitions. [2022-03-15 13:57:47,065 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 10926 transitions. Word has length 134 [2022-03-15 13:57:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:47,065 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 10926 transitions. [2022-03-15 13:57:47,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 10926 transitions. [2022-03-15 13:57:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:47,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:47,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:47,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 13:57:47,070 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 179363648, now seen corresponding path program 70 times [2022-03-15 13:57:47,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:47,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652065881] [2022-03-15 13:57:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:47,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:47,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:47,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652065881] [2022-03-15 13:57:47,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652065881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:47,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:47,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:57:47,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747219845] [2022-03-15 13:57:47,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:47,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:57:47,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:47,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:57:47,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:57:47,191 INFO L87 Difference]: Start difference. First operand 3803 states and 10926 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:47,321 INFO L93 Difference]: Finished difference Result 4127 states and 11877 transitions. [2022-03-15 13:57:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 13:57:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:47,328 INFO L225 Difference]: With dead ends: 4127 [2022-03-15 13:57:47,328 INFO L226 Difference]: Without dead ends: 3605 [2022-03-15 13:57:47,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 13:57:47,328 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 88 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:47,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 571 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-03-15 13:57:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3605. [2022-03-15 13:57:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3604 states have (on average 2.866814650388457) internal successors, (10332), 3604 states have internal predecessors, (10332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 10332 transitions. [2022-03-15 13:57:47,374 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 10332 transitions. Word has length 134 [2022-03-15 13:57:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:47,374 INFO L470 AbstractCegarLoop]: Abstraction has 3605 states and 10332 transitions. [2022-03-15 13:57:47,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 10332 transitions. [2022-03-15 13:57:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:47,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:47,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:47,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 13:57:47,379 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash -58097890, now seen corresponding path program 71 times [2022-03-15 13:57:47,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:47,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890383856] [2022-03-15 13:57:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:47,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:47,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:47,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890383856] [2022-03-15 13:57:47,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890383856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:47,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:47,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:57:47,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829813720] [2022-03-15 13:57:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:47,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:57:47,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:57:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:57:47,524 INFO L87 Difference]: Start difference. First operand 3605 states and 10332 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:47,741 INFO L93 Difference]: Finished difference Result 4361 states and 12531 transitions. [2022-03-15 13:57:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:57:47,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:47,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:47,747 INFO L225 Difference]: With dead ends: 4361 [2022-03-15 13:57:47,748 INFO L226 Difference]: Without dead ends: 3795 [2022-03-15 13:57:47,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:57:47,748 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 213 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:47,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 824 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:57:47,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-03-15 13:57:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3303. [2022-03-15 13:57:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3302 states have (on average 2.8597819503331317) internal successors, (9443), 3302 states have internal predecessors, (9443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 9443 transitions. [2022-03-15 13:57:47,793 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 9443 transitions. Word has length 134 [2022-03-15 13:57:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:47,793 INFO L470 AbstractCegarLoop]: Abstraction has 3303 states and 9443 transitions. [2022-03-15 13:57:47,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 9443 transitions. [2022-03-15 13:57:47,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:47,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:47,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:47,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 13:57:47,797 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:47,798 INFO L85 PathProgramCache]: Analyzing trace with hash -563052898, now seen corresponding path program 72 times [2022-03-15 13:57:47,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:47,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774594889] [2022-03-15 13:57:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:47,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:57:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:57:47,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:57:47,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774594889] [2022-03-15 13:57:47,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774594889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:57:47,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:57:47,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:57:47,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979737309] [2022-03-15 13:57:47,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:57:47,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:57:47,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:57:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:57:47,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:57:47,977 INFO L87 Difference]: Start difference. First operand 3303 states and 9443 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:48,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:57:48,168 INFO L93 Difference]: Finished difference Result 3675 states and 10546 transitions. [2022-03-15 13:57:48,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:57:48,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-15 13:57:48,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:57:48,172 INFO L225 Difference]: With dead ends: 3675 [2022-03-15 13:57:48,172 INFO L226 Difference]: Without dead ends: 3111 [2022-03-15 13:57:48,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:57:48,173 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 131 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:57:48,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1151 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:57:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-03-15 13:57:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3039. [2022-03-15 13:57:48,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3038 states have (on average 2.869321922317314) internal successors, (8717), 3038 states have internal predecessors, (8717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8717 transitions. [2022-03-15 13:57:48,212 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8717 transitions. Word has length 134 [2022-03-15 13:57:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:57:48,212 INFO L470 AbstractCegarLoop]: Abstraction has 3039 states and 8717 transitions. [2022-03-15 13:57:48,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:57:48,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8717 transitions. [2022-03-15 13:57:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-15 13:57:48,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:57:48,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:57:48,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 13:57:48,216 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:57:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:57:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -886322154, now seen corresponding path program 73 times [2022-03-15 13:57:48,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:57:48,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683308617] [2022-03-15 13:57:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:57:48,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:57:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat