/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/test-easy10.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:38:22,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:38:22,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:38:22,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:38:22,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:38:22,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:38:22,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:38:22,394 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 14:38:22,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:38:22,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:38:22,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:38:22,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:38:22,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:38:22,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:38:22,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:38:22,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:38:22,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:38:22,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:38:22,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:38:22,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:38:22,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:38:22,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:38:22,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:38:22,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:38:22,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:38:22,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:38:22,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:38:22,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:38:22,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:38:22,423 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:38:22,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:38:22,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:38:22,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:38:22,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:38:22,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:38:22,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:38:22,641 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:38:22,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-03-15 14:38:22,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ac2c86/16bc14024df2439eb637137590a881a8/FLAG855d997e5 [2022-03-15 14:38:23,077 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:38:23,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-03-15 14:38:23,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ac2c86/16bc14024df2439eb637137590a881a8/FLAG855d997e5 [2022-03-15 14:38:23,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94ac2c86/16bc14024df2439eb637137590a881a8 [2022-03-15 14:38:23,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:38:23,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:38:23,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:38:23,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:38:23,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:38:23,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711ce4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23, skipping insertion in model container [2022-03-15 14:38:23,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:38:23,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:38:23,729 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/test-easy10.wvr.c[3907,3920] [2022-03-15 14:38:23,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:38:23,740 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:38:23,777 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/test-easy10.wvr.c[3907,3920] [2022-03-15 14:38:23,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:38:23,789 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:38:23,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23 WrapperNode [2022-03-15 14:38:23,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:38:23,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:38:23,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:38:23,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:38:23,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,837 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-03-15 14:38:23,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:38:23,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:38:23,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:38:23,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:38:23,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:38:23,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:38:23,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:38:23,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:38:23,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (1/1) ... [2022-03-15 14:38:23,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:38:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:38:23,899 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 14:38:23,919 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 14:38:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:38:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:38:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:38:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:38:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:38:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:38:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 14:38:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:38:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:38:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:38:23,930 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 14:38:23,998 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:38:23,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:38:24,217 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:38:24,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:38:24,254 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 14:38:24,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:38:24 BoogieIcfgContainer [2022-03-15 14:38:24,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:38:24,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:38:24,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:38:24,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:38:24,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:38:23" (1/3) ... [2022-03-15 14:38:24,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24397e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:38:24, skipping insertion in model container [2022-03-15 14:38:24,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:38:23" (2/3) ... [2022-03-15 14:38:24,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24397e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:38:24, skipping insertion in model container [2022-03-15 14:38:24,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:38:24" (3/3) ... [2022-03-15 14:38:24,266 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-03-15 14:38:24,269 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:38:24,269 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:38:24,269 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:38:24,270 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:38:24,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,312 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,317 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,317 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,317 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,317 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,320 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,320 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,320 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,320 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,321 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,322 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,322 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,322 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:38:24,325 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 14:38:24,364 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:38:24,370 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 14:38:24,370 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 14:38:24,382 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 138 transitions, 308 flow [2022-03-15 14:38:25,398 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states 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 14:38:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states 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 14:38:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:25,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:25,801 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] [2022-03-15 14:38:25,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:25,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1535193811, now seen corresponding path program 1 times [2022-03-15 14:38:25,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:25,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221965510] [2022-03-15 14:38:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:25,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:38:26,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:26,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221965510] [2022-03-15 14:38:26,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221965510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:26,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:26,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 14:38:26,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762224802] [2022-03-15 14:38:26,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:26,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 14:38:26,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:26,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 14:38:26,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:38:26,344 INFO L87 Difference]: Start difference. First operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 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 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:26,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:26,707 INFO L93 Difference]: Finished difference Result 27912 states and 113862 transitions. [2022-03-15 14:38:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 14:38:26,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:27,108 INFO L225 Difference]: With dead ends: 27912 [2022-03-15 14:38:27,110 INFO L226 Difference]: Without dead ends: 27910 [2022-03-15 14:38:27,114 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 14:38:27,122 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 34 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:27,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 181 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:38:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2022-03-15 14:38:28,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2022-03-15 14:38:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 27909 states have (on average 4.079687555985524) internal successors, (113860), 27909 states have internal predecessors, (113860), 0 states have call successors, (0), 0 states 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 14:38:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 113860 transitions. [2022-03-15 14:38:28,315 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 113860 transitions. Word has length 117 [2022-03-15 14:38:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:28,316 INFO L470 AbstractCegarLoop]: Abstraction has 27910 states and 113860 transitions. [2022-03-15 14:38:28,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 113860 transitions. [2022-03-15 14:38:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:28,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:28,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:28,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:38:28,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1372129713, now seen corresponding path program 2 times [2022-03-15 14:38:28,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:28,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133717097] [2022-03-15 14:38:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:28,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:28,799 INFO 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 14:38:28,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:28,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133717097] [2022-03-15 14:38:28,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133717097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:28,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:28,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 14:38:28,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963877754] [2022-03-15 14:38:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:28,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 14:38:28,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 14:38:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:38:28,804 INFO L87 Difference]: Start difference. First operand 27910 states and 113860 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:29,095 INFO L93 Difference]: Finished difference Result 23500 states and 94420 transitions. [2022-03-15 14:38:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 14:38:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:29,197 INFO L225 Difference]: With dead ends: 23500 [2022-03-15 14:38:29,197 INFO L226 Difference]: Without dead ends: 23500 [2022-03-15 14:38:29,198 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 14:38:29,199 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 20 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:29,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 169 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:38:29,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23500 states. [2022-03-15 14:38:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23500 to 23500. [2022-03-15 14:38:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23500 states, 23499 states have (on average 4.0180433209923825) internal successors, (94420), 23499 states have internal predecessors, (94420), 0 states have call successors, (0), 0 states 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 14:38:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23500 states to 23500 states and 94420 transitions. [2022-03-15 14:38:30,087 INFO L78 Accepts]: Start accepts. Automaton has 23500 states and 94420 transitions. Word has length 117 [2022-03-15 14:38:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:30,088 INFO L470 AbstractCegarLoop]: Abstraction has 23500 states and 94420 transitions. [2022-03-15 14:38:30,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 23500 states and 94420 transitions. [2022-03-15 14:38:30,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:30,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:30,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:30,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:38:30,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:30,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:30,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1070905129, now seen corresponding path program 3 times [2022-03-15 14:38:30,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:30,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972129809] [2022-03-15 14:38:30,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:30,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:38:31,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:31,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972129809] [2022-03-15 14:38:31,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972129809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:31,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:31,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:31,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649292007] [2022-03-15 14:38:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:31,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:31,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:31,522 INFO L87 Difference]: Start difference. First operand 23500 states and 94420 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:33,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:33,512 INFO L93 Difference]: Finished difference Result 55333 states and 218353 transitions. [2022-03-15 14:38:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:38:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:34,002 INFO L225 Difference]: With dead ends: 55333 [2022-03-15 14:38:34,002 INFO L226 Difference]: Without dead ends: 54346 [2022-03-15 14:38:34,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:38:34,009 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 620 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:34,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 2828 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:38:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54346 states. [2022-03-15 14:38:35,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54346 to 24472. [2022-03-15 14:38:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.01017530955008) internal successors, (98133), 24471 states have internal predecessors, (98133), 0 states have call successors, (0), 0 states 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 14:38:35,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98133 transitions. [2022-03-15 14:38:35,209 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98133 transitions. Word has length 117 [2022-03-15 14:38:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:35,210 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98133 transitions. [2022-03-15 14:38:35,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98133 transitions. [2022-03-15 14:38:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:35,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:35,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:38:35,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:38:35,264 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:35,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2042458025, now seen corresponding path program 4 times [2022-03-15 14:38:35,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:35,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533520409] [2022-03-15 14:38:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:36,309 INFO 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 14:38:36,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:36,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533520409] [2022-03-15 14:38:36,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533520409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:36,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:36,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:36,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699796138] [2022-03-15 14:38:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:36,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:36,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:36,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:36,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:36,311 INFO L87 Difference]: Start difference. First operand 24472 states and 98133 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:38,248 INFO L93 Difference]: Finished difference Result 55522 states and 218749 transitions. [2022-03-15 14:38:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:38:38,248 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:38,568 INFO L225 Difference]: With dead ends: 55522 [2022-03-15 14:38:38,569 INFO L226 Difference]: Without dead ends: 54940 [2022-03-15 14:38:38,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:38:38,576 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 724 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:38,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 2776 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:38:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54940 states. [2022-03-15 14:38:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54940 to 24508. [2022-03-15 14:38:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24508 states, 24507 states have (on average 4.00881380829967) internal successors, (98244), 24507 states have internal predecessors, (98244), 0 states have call successors, (0), 0 states 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 14:38:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24508 states to 24508 states and 98244 transitions. [2022-03-15 14:38:39,739 INFO L78 Accepts]: Start accepts. Automaton has 24508 states and 98244 transitions. Word has length 117 [2022-03-15 14:38:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:39,739 INFO L470 AbstractCegarLoop]: Abstraction has 24508 states and 98244 transitions. [2022-03-15 14:38:39,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24508 states and 98244 transitions. [2022-03-15 14:38:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:39,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:39,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:38:39,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:38:39,793 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:39,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1762640513, now seen corresponding path program 5 times [2022-03-15 14:38:39,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:39,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227437060] [2022-03-15 14:38:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:39,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:40,668 INFO 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 14:38:40,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:40,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227437060] [2022-03-15 14:38:40,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227437060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:40,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:40,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:40,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268103256] [2022-03-15 14:38:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:40,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:40,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:40,670 INFO L87 Difference]: Start difference. First operand 24508 states and 98244 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:42,530 INFO L93 Difference]: Finished difference Result 54937 states and 216781 transitions. [2022-03-15 14:38:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:38:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:42,755 INFO L225 Difference]: With dead ends: 54937 [2022-03-15 14:38:42,755 INFO L226 Difference]: Without dead ends: 54238 [2022-03-15 14:38:42,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:38:42,756 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 588 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:42,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 3066 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:38:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54238 states. [2022-03-15 14:38:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54238 to 24364. [2022-03-15 14:38:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.009851003570989) internal successors, (97692), 24363 states have internal predecessors, (97692), 0 states have call successors, (0), 0 states 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 14:38:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97692 transitions. [2022-03-15 14:38:43,831 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97692 transitions. Word has length 117 [2022-03-15 14:38:43,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:43,832 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97692 transitions. [2022-03-15 14:38:43,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97692 transitions. [2022-03-15 14:38:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:43,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:43,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:38:43,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:38:43,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:43,884 INFO L85 PathProgramCache]: Analyzing trace with hash -347353081, now seen corresponding path program 6 times [2022-03-15 14:38:43,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:43,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128860700] [2022-03-15 14:38:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:43,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:44,796 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 14:38:44,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:44,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128860700] [2022-03-15 14:38:44,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128860700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:44,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:44,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:44,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795361464] [2022-03-15 14:38:44,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:44,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:44,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:44,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:44,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:44,798 INFO L87 Difference]: Start difference. First operand 24364 states and 97692 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:46,676 INFO L93 Difference]: Finished difference Result 55441 states and 218614 transitions. [2022-03-15 14:38:46,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:38:46,676 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:46,903 INFO L225 Difference]: With dead ends: 55441 [2022-03-15 14:38:46,903 INFO L226 Difference]: Without dead ends: 54859 [2022-03-15 14:38:46,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=267, Invalid=545, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:38:46,904 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 667 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:46,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 2856 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:38:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54859 states. [2022-03-15 14:38:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54859 to 24472. [2022-03-15 14:38:47,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.008704180458502) internal successors, (98097), 24471 states have internal predecessors, (98097), 0 states have call successors, (0), 0 states 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 14:38:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98097 transitions. [2022-03-15 14:38:47,963 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98097 transitions. Word has length 117 [2022-03-15 14:38:47,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:47,963 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98097 transitions. [2022-03-15 14:38:47,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98097 transitions. [2022-03-15 14:38:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:48,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:48,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:48,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:38:48,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 142515677, now seen corresponding path program 7 times [2022-03-15 14:38:48,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:48,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451550666] [2022-03-15 14:38:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:48,908 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 14:38:48,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:48,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451550666] [2022-03-15 14:38:48,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451550666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:48,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:48,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:48,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132999845] [2022-03-15 14:38:48,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:48,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:48,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:48,910 INFO L87 Difference]: Start difference. First operand 24472 states and 98097 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:50,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:50,846 INFO L93 Difference]: Finished difference Result 55414 states and 218488 transitions. [2022-03-15 14:38:50,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:38:50,847 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:50,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:51,246 INFO L225 Difference]: With dead ends: 55414 [2022-03-15 14:38:51,246 INFO L226 Difference]: Without dead ends: 54823 [2022-03-15 14:38:51,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:38:51,247 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 609 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:51,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 2972 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:38:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54823 states. [2022-03-15 14:38:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54823 to 24436. [2022-03-15 14:38:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24436 states, 24435 states have (on average 4.008594229588705) internal successors, (97950), 24435 states have internal predecessors, (97950), 0 states have call successors, (0), 0 states 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 14:38:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24436 states to 24436 states and 97950 transitions. [2022-03-15 14:38:52,168 INFO L78 Accepts]: Start accepts. Automaton has 24436 states and 97950 transitions. Word has length 117 [2022-03-15 14:38:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:52,168 INFO L470 AbstractCegarLoop]: Abstraction has 24436 states and 97950 transitions. [2022-03-15 14:38:52,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 24436 states and 97950 transitions. [2022-03-15 14:38:52,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:52,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:52,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:38:52,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 14:38:52,226 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:52,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash -769438449, now seen corresponding path program 8 times [2022-03-15 14:38:52,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:52,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070884833] [2022-03-15 14:38:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:52,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:53,109 INFO 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 14:38:53,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:53,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070884833] [2022-03-15 14:38:53,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070884833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:53,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:53,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:53,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621048350] [2022-03-15 14:38:53,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:53,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:53,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:53,111 INFO L87 Difference]: Start difference. First operand 24436 states and 97950 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:54,953 INFO L93 Difference]: Finished difference Result 54820 states and 216499 transitions. [2022-03-15 14:38:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:38:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:55,266 INFO L225 Difference]: With dead ends: 54820 [2022-03-15 14:38:55,267 INFO L226 Difference]: Without dead ends: 53545 [2022-03-15 14:38:55,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:38:55,268 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 572 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:55,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 2585 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:38:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53545 states. [2022-03-15 14:38:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53545 to 23932. [2022-03-15 14:38:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23932 states, 23931 states have (on average 4.015544690986586) internal successors, (96096), 23931 states have internal predecessors, (96096), 0 states have call successors, (0), 0 states 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 14:38:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23932 states to 23932 states and 96096 transitions. [2022-03-15 14:38:56,161 INFO L78 Accepts]: Start accepts. Automaton has 23932 states and 96096 transitions. Word has length 117 [2022-03-15 14:38:56,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:38:56,161 INFO L470 AbstractCegarLoop]: Abstraction has 23932 states and 96096 transitions. [2022-03-15 14:38:56,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 23932 states and 96096 transitions. [2022-03-15 14:38:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:38:56,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:38:56,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:38:56,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 14:38:56,212 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:38:56,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:38:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash 122932443, now seen corresponding path program 9 times [2022-03-15 14:38:56,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:38:56,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643964653] [2022-03-15 14:38:56,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:38:56,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:38:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:38:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:38:57,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:38:57,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643964653] [2022-03-15 14:38:57,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643964653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:38:57,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:38:57,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:38:57,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353810857] [2022-03-15 14:38:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:38:57,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:38:57,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:38:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:38:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:38:57,124 INFO L87 Difference]: Start difference. First operand 23932 states and 96096 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:38:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:38:58,905 INFO L93 Difference]: Finished difference Result 56617 states and 223019 transitions. [2022-03-15 14:38:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:38:58,906 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:38:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:38:59,129 INFO L225 Difference]: With dead ends: 56617 [2022-03-15 14:38:59,129 INFO L226 Difference]: Without dead ends: 56023 [2022-03-15 14:38:59,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:38:59,130 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 752 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:38:59,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2771 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:38:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56023 states. [2022-03-15 14:39:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56023 to 24244. [2022-03-15 14:39:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 24243 states have (on average 4.015262137524234) internal successors, (97342), 24243 states have internal predecessors, (97342), 0 states have call successors, (0), 0 states 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 14:39:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 97342 transitions. [2022-03-15 14:39:00,207 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 97342 transitions. Word has length 117 [2022-03-15 14:39:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:00,207 INFO L470 AbstractCegarLoop]: Abstraction has 24244 states and 97342 transitions. [2022-03-15 14:39:00,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 97342 transitions. [2022-03-15 14:39:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:00,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:00,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:00,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:39:00,259 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1455800059, now seen corresponding path program 10 times [2022-03-15 14:39:00,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:00,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218740195] [2022-03-15 14:39:00,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:00,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:01,075 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 14:39:01,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:01,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218740195] [2022-03-15 14:39:01,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218740195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:01,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:01,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:01,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847123204] [2022-03-15 14:39:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:01,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:01,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:01,077 INFO L87 Difference]: Start difference. First operand 24244 states and 97342 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:02,837 INFO L93 Difference]: Finished difference Result 56605 states and 222944 transitions. [2022-03-15 14:39:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:02,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:03,071 INFO L225 Difference]: With dead ends: 56605 [2022-03-15 14:39:03,071 INFO L226 Difference]: Without dead ends: 55978 [2022-03-15 14:39:03,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:03,072 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 660 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:03,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2993 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55978 states. [2022-03-15 14:39:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55978 to 24199. [2022-03-15 14:39:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24199 states, 24198 states have (on average 4.015290519877676) internal successors, (97162), 24198 states have internal predecessors, (97162), 0 states have call successors, (0), 0 states 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 14:39:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24199 states to 24199 states and 97162 transitions. [2022-03-15 14:39:04,202 INFO L78 Accepts]: Start accepts. Automaton has 24199 states and 97162 transitions. Word has length 117 [2022-03-15 14:39:04,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:04,202 INFO L470 AbstractCegarLoop]: Abstraction has 24199 states and 97162 transitions. [2022-03-15 14:39:04,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 24199 states and 97162 transitions. [2022-03-15 14:39:04,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:04,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:04,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:04,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 14:39:04,254 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:04,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:04,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1870583289, now seen corresponding path program 11 times [2022-03-15 14:39:04,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:04,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719550237] [2022-03-15 14:39:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:04,971 INFO 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 14:39:04,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:04,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719550237] [2022-03-15 14:39:04,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719550237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:04,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:04,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:04,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128208419] [2022-03-15 14:39:04,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:04,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:04,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:04,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:04,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:04,973 INFO L87 Difference]: Start difference. First operand 24199 states and 97162 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:06,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:06,667 INFO L93 Difference]: Finished difference Result 56965 states and 224249 transitions. [2022-03-15 14:39:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:06,667 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:07,043 INFO L225 Difference]: With dead ends: 56965 [2022-03-15 14:39:07,044 INFO L226 Difference]: Without dead ends: 55843 [2022-03-15 14:39:07,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:07,045 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 683 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:07,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 2916 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55843 states. [2022-03-15 14:39:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55843 to 24064. [2022-03-15 14:39:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.01575032207123) internal successors, (96631), 24063 states have internal predecessors, (96631), 0 states have call successors, (0), 0 states 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 14:39:08,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96631 transitions. [2022-03-15 14:39:08,005 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96631 transitions. Word has length 117 [2022-03-15 14:39:08,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:08,006 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96631 transitions. [2022-03-15 14:39:08,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96631 transitions. [2022-03-15 14:39:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:08,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:08,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:08,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 14:39:08,055 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:08,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash -129350565, now seen corresponding path program 12 times [2022-03-15 14:39:08,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:08,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965990480] [2022-03-15 14:39:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:08,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:09,008 INFO 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 14:39:09,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:09,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965990480] [2022-03-15 14:39:09,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965990480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:09,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:09,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:09,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914466028] [2022-03-15 14:39:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:09,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:09,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:09,010 INFO L87 Difference]: Start difference. First operand 24064 states and 96631 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:10,626 INFO L93 Difference]: Finished difference Result 57856 states and 227089 transitions. [2022-03-15 14:39:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:10,830 INFO L225 Difference]: With dead ends: 57856 [2022-03-15 14:39:10,830 INFO L226 Difference]: Without dead ends: 57262 [2022-03-15 14:39:10,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:10,831 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 880 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:10,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2924 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-03-15 14:39:11,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24121. [2022-03-15 14:39:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24121 states, 24120 states have (on average 4.014054726368159) internal successors, (96819), 24120 states have internal predecessors, (96819), 0 states have call successors, (0), 0 states 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 14:39:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24121 states to 24121 states and 96819 transitions. [2022-03-15 14:39:11,962 INFO L78 Accepts]: Start accepts. Automaton has 24121 states and 96819 transitions. Word has length 117 [2022-03-15 14:39:11,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:11,962 INFO L470 AbstractCegarLoop]: Abstraction has 24121 states and 96819 transitions. [2022-03-15 14:39:11,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 24121 states and 96819 transitions. [2022-03-15 14:39:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:12,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:12,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:12,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 14:39:12,010 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1203517051, now seen corresponding path program 13 times [2022-03-15 14:39:12,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:12,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659352620] [2022-03-15 14:39:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:12,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:12,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659352620] [2022-03-15 14:39:12,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659352620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:12,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:12,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:12,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302291340] [2022-03-15 14:39:12,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:12,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:12,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:12,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:12,909 INFO L87 Difference]: Start difference. First operand 24121 states and 96819 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:14,640 INFO L93 Difference]: Finished difference Result 57844 states and 227014 transitions. [2022-03-15 14:39:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:14,640 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:14,859 INFO L225 Difference]: With dead ends: 57844 [2022-03-15 14:39:14,859 INFO L226 Difference]: Without dead ends: 57217 [2022-03-15 14:39:14,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:14,860 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 818 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:14,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 2931 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:14,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57217 states. [2022-03-15 14:39:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57217 to 24076. [2022-03-15 14:39:15,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.015451713395638) internal successors, (96672), 24075 states have internal predecessors, (96672), 0 states have call successors, (0), 0 states 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 14:39:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96672 transitions. [2022-03-15 14:39:15,997 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96672 transitions. Word has length 117 [2022-03-15 14:39:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:15,997 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96672 transitions. [2022-03-15 14:39:15,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96672 transitions. [2022-03-15 14:39:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:16,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:16,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:16,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 14:39:16,047 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash -748052795, now seen corresponding path program 14 times [2022-03-15 14:39:16,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:16,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11250079] [2022-03-15 14:39:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:16,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:16,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:16,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11250079] [2022-03-15 14:39:16,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11250079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:16,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:16,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:16,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266252883] [2022-03-15 14:39:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:16,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:16,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:16,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:16,716 INFO L87 Difference]: Start difference. First operand 24076 states and 96672 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:18,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:18,412 INFO L93 Difference]: Finished difference Result 57079 states and 224440 transitions. [2022-03-15 14:39:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:18,412 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:18,853 INFO L225 Difference]: With dead ends: 57079 [2022-03-15 14:39:18,854 INFO L226 Difference]: Without dead ends: 56485 [2022-03-15 14:39:18,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:18,854 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 815 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:18,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2836 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:39:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56485 states. [2022-03-15 14:39:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56485 to 24112. [2022-03-15 14:39:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.014059972626602) internal successors, (96783), 24111 states have internal predecessors, (96783), 0 states have call successors, (0), 0 states 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 14:39:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96783 transitions. [2022-03-15 14:39:19,938 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96783 transitions. Word has length 117 [2022-03-15 14:39:19,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:19,939 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96783 transitions. [2022-03-15 14:39:19,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96783 transitions. [2022-03-15 14:39:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:19,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:19,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:19,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 14:39:19,988 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash 311958299, now seen corresponding path program 15 times [2022-03-15 14:39:19,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:19,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542232934] [2022-03-15 14:39:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:19,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:20,649 INFO 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 14:39:20,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:20,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542232934] [2022-03-15 14:39:20,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542232934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:20,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:20,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:20,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567702577] [2022-03-15 14:39:20,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:20,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:20,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:20,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:20,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:20,650 INFO L87 Difference]: Start difference. First operand 24112 states and 96783 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:22,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:22,403 INFO L93 Difference]: Finished difference Result 56590 states and 222847 transitions. [2022-03-15 14:39:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:22,404 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:22,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:22,616 INFO L225 Difference]: With dead ends: 56590 [2022-03-15 14:39:22,616 INFO L226 Difference]: Without dead ends: 55999 [2022-03-15 14:39:22,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:22,617 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 682 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:22,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 2893 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:39:22,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55999 states. [2022-03-15 14:39:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55999 to 24076. [2022-03-15 14:39:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.014953271028038) internal successors, (96660), 24075 states have internal predecessors, (96660), 0 states have call successors, (0), 0 states 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 14:39:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96660 transitions. [2022-03-15 14:39:23,543 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96660 transitions. Word has length 117 [2022-03-15 14:39:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:23,543 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96660 transitions. [2022-03-15 14:39:23,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96660 transitions. [2022-03-15 14:39:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:23,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:23,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:23,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 14:39:23,597 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:23,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash -295877403, now seen corresponding path program 16 times [2022-03-15 14:39:23,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:23,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334723607] [2022-03-15 14:39:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:24,467 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 14:39:24,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:24,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334723607] [2022-03-15 14:39:24,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334723607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:24,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:24,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:24,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380002318] [2022-03-15 14:39:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:24,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:24,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:24,469 INFO L87 Difference]: Start difference. First operand 24076 states and 96660 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:26,132 INFO L93 Difference]: Finished difference Result 57175 states and 224803 transitions. [2022-03-15 14:39:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:26,133 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:26,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:26,343 INFO L225 Difference]: With dead ends: 57175 [2022-03-15 14:39:26,343 INFO L226 Difference]: Without dead ends: 56593 [2022-03-15 14:39:26,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:26,344 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 799 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:26,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 2829 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:39:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56593 states. [2022-03-15 14:39:27,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56593 to 24112. [2022-03-15 14:39:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.0135622744805275) internal successors, (96771), 24111 states have internal predecessors, (96771), 0 states have call successors, (0), 0 states 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 14:39:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96771 transitions. [2022-03-15 14:39:27,360 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96771 transitions. Word has length 117 [2022-03-15 14:39:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:27,361 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96771 transitions. [2022-03-15 14:39:27,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96771 transitions. [2022-03-15 14:39:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:27,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:27,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:27,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 14:39:27,407 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1978403525, now seen corresponding path program 17 times [2022-03-15 14:39:27,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:27,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514200302] [2022-03-15 14:39:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:27,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:28,078 INFO 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 14:39:28,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:28,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514200302] [2022-03-15 14:39:28,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514200302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:28,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:28,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:28,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988815119] [2022-03-15 14:39:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:28,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:28,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:28,080 INFO L87 Difference]: Start difference. First operand 24112 states and 96771 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:29,728 INFO L93 Difference]: Finished difference Result 56590 states and 222835 transitions. [2022-03-15 14:39:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:29,729 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:30,054 INFO L225 Difference]: With dead ends: 56590 [2022-03-15 14:39:30,055 INFO L226 Difference]: Without dead ends: 55987 [2022-03-15 14:39:30,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:30,055 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 751 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:30,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2837 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:39:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55987 states. [2022-03-15 14:39:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55987 to 24064. [2022-03-15 14:39:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states 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 14:39:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-03-15 14:39:30,867 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-03-15 14:39:30,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:30,867 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-03-15 14:39:30,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-03-15 14:39:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:30,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:30,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:30,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 14:39:30,912 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1869964857, now seen corresponding path program 18 times [2022-03-15 14:39:30,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:30,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561292636] [2022-03-15 14:39:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:31,730 INFO 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 14:39:31,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:31,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561292636] [2022-03-15 14:39:31,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561292636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:31,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:31,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:31,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540498183] [2022-03-15 14:39:31,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:31,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:31,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:31,732 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:33,428 INFO L93 Difference]: Finished difference Result 57667 states and 226631 transitions. [2022-03-15 14:39:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:33,628 INFO L225 Difference]: With dead ends: 57667 [2022-03-15 14:39:33,628 INFO L226 Difference]: Without dead ends: 56680 [2022-03-15 14:39:33,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:33,629 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 835 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:33,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 2778 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56680 states. [2022-03-15 14:39:34,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56680 to 24172. [2022-03-15 14:39:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.011087667039014) internal successors, (96952), 24171 states have internal predecessors, (96952), 0 states have call successors, (0), 0 states 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 14:39:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 96952 transitions. [2022-03-15 14:39:34,584 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 96952 transitions. Word has length 117 [2022-03-15 14:39:34,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:34,585 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 96952 transitions. [2022-03-15 14:39:34,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 96952 transitions. [2022-03-15 14:39:34,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:34,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:34,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:34,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 14:39:34,813 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:34,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash 500999523, now seen corresponding path program 19 times [2022-03-15 14:39:34,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:34,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605460393] [2022-03-15 14:39:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:35,439 INFO 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 14:39:35,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:35,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605460393] [2022-03-15 14:39:35,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605460393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:35,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:35,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:35,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653994913] [2022-03-15 14:39:35,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:35,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:35,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:35,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:35,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:35,441 INFO L87 Difference]: Start difference. First operand 24172 states and 96952 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:37,030 INFO L93 Difference]: Finished difference Result 57271 states and 225095 transitions. [2022-03-15 14:39:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:37,227 INFO L225 Difference]: With dead ends: 57271 [2022-03-15 14:39:37,228 INFO L226 Difference]: Without dead ends: 56689 [2022-03-15 14:39:37,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:37,228 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 877 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:37,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 2713 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:39:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56689 states. [2022-03-15 14:39:38,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56689 to 24208. [2022-03-15 14:39:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24208 states, 24207 states have (on average 4.009707935721073) internal successors, (97063), 24207 states have internal predecessors, (97063), 0 states have call successors, (0), 0 states 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 14:39:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24208 states to 24208 states and 97063 transitions. [2022-03-15 14:39:38,269 INFO L78 Accepts]: Start accepts. Automaton has 24208 states and 97063 transitions. Word has length 117 [2022-03-15 14:39:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:38,269 INFO L470 AbstractCegarLoop]: Abstraction has 24208 states and 97063 transitions. [2022-03-15 14:39:38,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 24208 states and 97063 transitions. [2022-03-15 14:39:38,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:38,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:38,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:38,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 14:39:38,319 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1181526599, now seen corresponding path program 20 times [2022-03-15 14:39:38,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:38,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396050129] [2022-03-15 14:39:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:38,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:38,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396050129] [2022-03-15 14:39:38,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396050129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:38,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:38,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:38,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081013786] [2022-03-15 14:39:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:38,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:38,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:38,940 INFO L87 Difference]: Start difference. First operand 24208 states and 97063 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:40,572 INFO L93 Difference]: Finished difference Result 56686 states and 223127 transitions. [2022-03-15 14:39:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:39:40,572 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:40,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:40,928 INFO L225 Difference]: With dead ends: 56686 [2022-03-15 14:39:40,928 INFO L226 Difference]: Without dead ends: 55951 [2022-03-15 14:39:40,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:39:40,929 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 720 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:40,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 2836 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55951 states. [2022-03-15 14:39:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55951 to 24028. [2022-03-15 14:39:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.015149623340409) internal successors, (96472), 24027 states have internal predecessors, (96472), 0 states have call successors, (0), 0 states 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 14:39:41,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96472 transitions. [2022-03-15 14:39:41,836 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96472 transitions. Word has length 117 [2022-03-15 14:39:41,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:41,836 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96472 transitions. [2022-03-15 14:39:41,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:41,837 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96472 transitions. [2022-03-15 14:39:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:41,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:41,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:41,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 14:39:41,889 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1614110915, now seen corresponding path program 21 times [2022-03-15 14:39:41,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:41,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798256309] [2022-03-15 14:39:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:42,679 INFO 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 14:39:42,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:42,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798256309] [2022-03-15 14:39:42,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798256309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:42,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:42,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:42,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046786791] [2022-03-15 14:39:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:42,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:42,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:42,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:42,681 INFO L87 Difference]: Start difference. First operand 24028 states and 96472 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:44,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:44,472 INFO L93 Difference]: Finished difference Result 58003 states and 227897 transitions. [2022-03-15 14:39:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:39:44,472 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:44,667 INFO L225 Difference]: With dead ends: 58003 [2022-03-15 14:39:44,667 INFO L226 Difference]: Without dead ends: 57409 [2022-03-15 14:39:44,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=555, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:39:44,668 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 788 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:44,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 3164 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57409 states. [2022-03-15 14:39:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57409 to 24109. [2022-03-15 14:39:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24109 states, 24108 states have (on average 4.013854322216692) internal successors, (96766), 24108 states have internal predecessors, (96766), 0 states have call successors, (0), 0 states 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 14:39:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24109 states to 24109 states and 96766 transitions. [2022-03-15 14:39:45,499 INFO L78 Accepts]: Start accepts. Automaton has 24109 states and 96766 transitions. Word has length 117 [2022-03-15 14:39:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:45,499 INFO L470 AbstractCegarLoop]: Abstraction has 24109 states and 96766 transitions. [2022-03-15 14:39:45,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 24109 states and 96766 transitions. [2022-03-15 14:39:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:45,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:45,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:45,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 14:39:45,730 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:45,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash -281243299, now seen corresponding path program 22 times [2022-03-15 14:39:45,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:45,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390914952] [2022-03-15 14:39:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:45,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:46,410 INFO 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 14:39:46,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:46,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390914952] [2022-03-15 14:39:46,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390914952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:46,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:46,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:46,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493302122] [2022-03-15 14:39:46,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:46,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:46,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:46,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:46,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:46,412 INFO L87 Difference]: Start difference. First operand 24109 states and 96766 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:48,226 INFO L93 Difference]: Finished difference Result 58396 states and 229307 transitions. [2022-03-15 14:39:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:39:48,227 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:48,451 INFO L225 Difference]: With dead ends: 58396 [2022-03-15 14:39:48,452 INFO L226 Difference]: Without dead ends: 57769 [2022-03-15 14:39:48,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:39:48,452 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 734 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:48,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 3288 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57769 states. [2022-03-15 14:39:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57769 to 24064. [2022-03-15 14:39:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states 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 14:39:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-03-15 14:39:49,593 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-03-15 14:39:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:49,594 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-03-15 14:39:49,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-03-15 14:39:49,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:49,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:49,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:49,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 14:39:49,643 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2062154151, now seen corresponding path program 23 times [2022-03-15 14:39:49,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:49,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80309105] [2022-03-15 14:39:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:49,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:50,264 INFO 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 14:39:50,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:50,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80309105] [2022-03-15 14:39:50,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80309105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:50,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:50,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:50,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792439197] [2022-03-15 14:39:50,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:50,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:50,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:50,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:50,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:50,266 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:52,170 INFO L93 Difference]: Finished difference Result 58552 states and 229694 transitions. [2022-03-15 14:39:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:39:52,171 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:52,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:52,395 INFO L225 Difference]: With dead ends: 58552 [2022-03-15 14:39:52,395 INFO L226 Difference]: Without dead ends: 57958 [2022-03-15 14:39:52,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:39:52,396 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 882 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:52,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2946 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:39:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-03-15 14:39:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-03-15 14:39:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013859496244658) internal successors, (96730), 24099 states have internal predecessors, (96730), 0 states have call successors, (0), 0 states 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 14:39:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96730 transitions. [2022-03-15 14:39:53,294 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96730 transitions. Word has length 117 [2022-03-15 14:39:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:53,294 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96730 transitions. [2022-03-15 14:39:53,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:53,295 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96730 transitions. [2022-03-15 14:39:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:53,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:53,340 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] [2022-03-15 14:39:53,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 14:39:53,340 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:53,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1172802051, now seen corresponding path program 24 times [2022-03-15 14:39:53,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:53,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978888001] [2022-03-15 14:39:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:54,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:54,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978888001] [2022-03-15 14:39:54,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978888001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:54,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:54,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:54,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085764943] [2022-03-15 14:39:54,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:54,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:54,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:54,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:54,222 INFO L87 Difference]: Start difference. First operand 24100 states and 96730 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:55,915 INFO L93 Difference]: Finished difference Result 58063 states and 228101 transitions. [2022-03-15 14:39:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:39:55,915 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:56,110 INFO L225 Difference]: With dead ends: 58063 [2022-03-15 14:39:56,110 INFO L226 Difference]: Without dead ends: 57472 [2022-03-15 14:39:56,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:39:56,111 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 692 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:56,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 3234 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:56,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57472 states. [2022-03-15 14:39:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57472 to 24064. [2022-03-15 14:39:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.014752940198645) internal successors, (96607), 24063 states have internal predecessors, (96607), 0 states have call successors, (0), 0 states 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 14:39:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96607 transitions. [2022-03-15 14:39:57,097 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96607 transitions. Word has length 117 [2022-03-15 14:39:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:57,097 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96607 transitions. [2022-03-15 14:39:57,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96607 transitions. [2022-03-15 14:39:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:39:57,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:57,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:39:57,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 14:39:57,148 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1780637753, now seen corresponding path program 25 times [2022-03-15 14:39:57,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:57,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412657396] [2022-03-15 14:39:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:57,804 INFO 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 14:39:57,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:57,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412657396] [2022-03-15 14:39:57,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412657396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:57,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:57,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:39:57,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702872468] [2022-03-15 14:39:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:57,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:39:57,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:39:57,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:39:57,806 INFO L87 Difference]: Start difference. First operand 24064 states and 96607 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:39:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:59,525 INFO L93 Difference]: Finished difference Result 58540 states and 229652 transitions. [2022-03-15 14:39:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:39:59,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:39:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:59,726 INFO L225 Difference]: With dead ends: 58540 [2022-03-15 14:39:59,726 INFO L226 Difference]: Without dead ends: 57958 [2022-03-15 14:39:59,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:39:59,727 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 870 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:59,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 2977 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:39:59,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-03-15 14:40:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-03-15 14:40:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013361550271796) internal successors, (96718), 24099 states have internal predecessors, (96718), 0 states have call successors, (0), 0 states 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 14:40:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96718 transitions. [2022-03-15 14:40:00,755 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96718 transitions. Word has length 117 [2022-03-15 14:40:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:00,755 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96718 transitions. [2022-03-15 14:40:00,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96718 transitions. [2022-03-15 14:40:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:00,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:00,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:00,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 14:40:00,805 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:00,806 INFO L85 PathProgramCache]: Analyzing trace with hash 831803421, now seen corresponding path program 26 times [2022-03-15 14:40:00,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:00,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924683614] [2022-03-15 14:40:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:00,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:01,435 INFO 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 14:40:01,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:01,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924683614] [2022-03-15 14:40:01,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924683614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:01,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:01,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:01,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235176540] [2022-03-15 14:40:01,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:01,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:01,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:01,437 INFO L87 Difference]: Start difference. First operand 24100 states and 96718 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:03,110 INFO L93 Difference]: Finished difference Result 58063 states and 228089 transitions. [2022-03-15 14:40:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:40:03,111 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:03,473 INFO L225 Difference]: With dead ends: 58063 [2022-03-15 14:40:03,473 INFO L226 Difference]: Without dead ends: 57460 [2022-03-15 14:40:03,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:40:03,474 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 741 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:03,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 3025 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:40:03,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57460 states. [2022-03-15 14:40:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57460 to 24052. [2022-03-15 14:40:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.0150513492162485) internal successors, (96566), 24051 states have internal predecessors, (96566), 0 states have call successors, (0), 0 states 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 14:40:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96566 transitions. [2022-03-15 14:40:04,572 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96566 transitions. Word has length 117 [2022-03-15 14:40:04,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:04,572 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96566 transitions. [2022-03-15 14:40:04,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96566 transitions. [2022-03-15 14:40:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:04,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:04,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:04,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 14:40:04,619 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -295066315, now seen corresponding path program 27 times [2022-03-15 14:40:04,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:04,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745698438] [2022-03-15 14:40:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:04,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:05,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:05,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745698438] [2022-03-15 14:40:05,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745698438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:05,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:05,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:05,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710859317] [2022-03-15 14:40:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:05,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:05,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:05,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:05,477 INFO L87 Difference]: Start difference. First operand 24052 states and 96566 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:07,129 INFO L93 Difference]: Finished difference Result 57178 states and 225048 transitions. [2022-03-15 14:40:07,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:40:07,129 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:07,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:07,352 INFO L225 Difference]: With dead ends: 57178 [2022-03-15 14:40:07,352 INFO L226 Difference]: Without dead ends: 56584 [2022-03-15 14:40:07,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:40:07,354 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 815 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:07,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2582 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56584 states. [2022-03-15 14:40:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56584 to 24160. [2022-03-15 14:40:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.013866467982946) internal successors, (96971), 24159 states have internal predecessors, (96971), 0 states have call successors, (0), 0 states 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 14:40:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96971 transitions. [2022-03-15 14:40:08,197 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96971 transitions. Word has length 117 [2022-03-15 14:40:08,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:08,197 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96971 transitions. [2022-03-15 14:40:08,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96971 transitions. [2022-03-15 14:40:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:08,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:08,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:08,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 14:40:08,243 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 764944779, now seen corresponding path program 28 times [2022-03-15 14:40:08,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:08,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192710130] [2022-03-15 14:40:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:08,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:09,062 INFO 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 14:40:09,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:09,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192710130] [2022-03-15 14:40:09,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192710130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:09,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:09,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:09,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742847128] [2022-03-15 14:40:09,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:09,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:09,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:09,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:09,063 INFO L87 Difference]: Start difference. First operand 24160 states and 96971 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:10,682 INFO L93 Difference]: Finished difference Result 57139 states and 224892 transitions. [2022-03-15 14:40:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:40:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:10,891 INFO L225 Difference]: With dead ends: 57139 [2022-03-15 14:40:10,892 INFO L226 Difference]: Without dead ends: 56548 [2022-03-15 14:40:10,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:40:10,892 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 815 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:10,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2796 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:10,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56548 states. [2022-03-15 14:40:11,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56548 to 24124. [2022-03-15 14:40:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.013762798988517) internal successors, (96824), 24123 states have internal predecessors, (96824), 0 states have call successors, (0), 0 states 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 14:40:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96824 transitions. [2022-03-15 14:40:11,956 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96824 transitions. Word has length 117 [2022-03-15 14:40:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:11,956 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96824 transitions. [2022-03-15 14:40:11,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96824 transitions. [2022-03-15 14:40:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:12,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:12,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:12,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 14:40:12,005 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1740003747, now seen corresponding path program 29 times [2022-03-15 14:40:12,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:12,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585571598] [2022-03-15 14:40:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:12,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:12,657 INFO 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 14:40:12,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:12,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585571598] [2022-03-15 14:40:12,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585571598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:12,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:12,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:12,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602023587] [2022-03-15 14:40:12,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:12,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:12,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:12,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:12,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:12,659 INFO L87 Difference]: Start difference. First operand 24124 states and 96824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:14,476 INFO L93 Difference]: Finished difference Result 56761 states and 223713 transitions. [2022-03-15 14:40:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:40:14,476 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:14,806 INFO L225 Difference]: With dead ends: 56761 [2022-03-15 14:40:14,806 INFO L226 Difference]: Without dead ends: 55918 [2022-03-15 14:40:14,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:40:14,807 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 644 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:14,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 3092 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:40:14,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55918 states. [2022-03-15 14:40:15,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55918 to 24052. [2022-03-15 14:40:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.014053469710199) internal successors, (96542), 24051 states have internal predecessors, (96542), 0 states have call successors, (0), 0 states 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 14:40:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96542 transitions. [2022-03-15 14:40:15,668 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96542 transitions. Word has length 117 [2022-03-15 14:40:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:15,669 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96542 transitions. [2022-03-15 14:40:15,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:15,669 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96542 transitions. [2022-03-15 14:40:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:15,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:15,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:15,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 14:40:15,718 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2124630731, now seen corresponding path program 30 times [2022-03-15 14:40:15,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:15,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842275065] [2022-03-15 14:40:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:15,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:16,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:16,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842275065] [2022-03-15 14:40:16,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842275065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:16,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:16,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:16,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278572409] [2022-03-15 14:40:16,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:16,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:16,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:16,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:16,310 INFO L87 Difference]: Start difference. First operand 24052 states and 96542 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:18,197 INFO L93 Difference]: Finished difference Result 58327 states and 229269 transitions. [2022-03-15 14:40:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:40:18,197 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:18,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:18,403 INFO L225 Difference]: With dead ends: 58327 [2022-03-15 14:40:18,403 INFO L226 Difference]: Without dead ends: 57745 [2022-03-15 14:40:18,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2022-03-15 14:40:18,404 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 702 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:18,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 2988 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:40:18,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57745 states. [2022-03-15 14:40:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57745 to 24160. [2022-03-15 14:40:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.012873049381183) internal successors, (96947), 24159 states have internal predecessors, (96947), 0 states have call successors, (0), 0 states 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 14:40:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96947 transitions. [2022-03-15 14:40:19,294 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96947 transitions. Word has length 117 [2022-03-15 14:40:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:19,294 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96947 transitions. [2022-03-15 14:40:19,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96947 transitions. [2022-03-15 14:40:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:19,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:19,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:19,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 14:40:19,346 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:19,346 INFO L85 PathProgramCache]: Analyzing trace with hash 487810443, now seen corresponding path program 31 times [2022-03-15 14:40:19,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:19,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417800915] [2022-03-15 14:40:19,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:19,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:20,253 INFO 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 14:40:20,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:20,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417800915] [2022-03-15 14:40:20,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417800915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:20,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:20,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:20,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906473342] [2022-03-15 14:40:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:20,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:20,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:20,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:20,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:20,254 INFO L87 Difference]: Start difference. First operand 24160 states and 96947 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:21,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:21,935 INFO L93 Difference]: Finished difference Result 57895 states and 227658 transitions. [2022-03-15 14:40:21,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:40:21,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:22,166 INFO L225 Difference]: With dead ends: 57895 [2022-03-15 14:40:22,166 INFO L226 Difference]: Without dead ends: 57304 [2022-03-15 14:40:22,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:40:22,167 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 754 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:22,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 2700 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57304 states. [2022-03-15 14:40:23,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57304 to 24124. [2022-03-15 14:40:23,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.0127678978568175) internal successors, (96800), 24123 states have internal predecessors, (96800), 0 states have call successors, (0), 0 states 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 14:40:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96800 transitions. [2022-03-15 14:40:23,144 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96800 transitions. Word has length 117 [2022-03-15 14:40:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:23,144 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96800 transitions. [2022-03-15 14:40:23,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96800 transitions. [2022-03-15 14:40:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:23,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:23,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:23,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 14:40:23,192 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:23,192 INFO L85 PathProgramCache]: Analyzing trace with hash 273223741, now seen corresponding path program 32 times [2022-03-15 14:40:23,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:23,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377205808] [2022-03-15 14:40:23,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:23,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:24,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:24,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377205808] [2022-03-15 14:40:24,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377205808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:24,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:24,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:24,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011974182] [2022-03-15 14:40:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:24,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:24,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:24,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:24,006 INFO L87 Difference]: Start difference. First operand 24124 states and 96800 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:25,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:25,654 INFO L93 Difference]: Finished difference Result 57301 states and 225669 transitions. [2022-03-15 14:40:25,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:40:25,654 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:25,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:25,862 INFO L225 Difference]: With dead ends: 57301 [2022-03-15 14:40:25,863 INFO L226 Difference]: Without dead ends: 56434 [2022-03-15 14:40:25,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=548, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:40:25,863 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 672 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:25,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 2678 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2022-03-15 14:40:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 24028. [2022-03-15 14:40:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.014150747076206) internal successors, (96448), 24027 states have internal predecessors, (96448), 0 states have call successors, (0), 0 states 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 14:40:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96448 transitions. [2022-03-15 14:40:26,861 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96448 transitions. Word has length 117 [2022-03-15 14:40:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:26,862 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96448 transitions. [2022-03-15 14:40:26,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96448 transitions. [2022-03-15 14:40:26,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:26,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:26,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:26,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 14:40:26,911 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:26,911 INFO L85 PathProgramCache]: Analyzing trace with hash -681414563, now seen corresponding path program 33 times [2022-03-15 14:40:26,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:26,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82313125] [2022-03-15 14:40:26,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:26,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:27,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:27,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82313125] [2022-03-15 14:40:27,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82313125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:27,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:27,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:27,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005815499] [2022-03-15 14:40:27,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:27,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:27,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:27,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:27,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:27,500 INFO L87 Difference]: Start difference. First operand 24028 states and 96448 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:29,069 INFO L93 Difference]: Finished difference Result 56314 states and 221759 transitions. [2022-03-15 14:40:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:29,069 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:29,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:29,271 INFO L225 Difference]: With dead ends: 56314 [2022-03-15 14:40:29,271 INFO L226 Difference]: Without dead ends: 55327 [2022-03-15 14:40:29,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:29,272 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 697 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 2808 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55327 states. [2022-03-15 14:40:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55327 to 24424. [2022-03-15 14:40:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states 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 14:40:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-03-15 14:40:30,286 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-03-15 14:40:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:30,287 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-03-15 14:40:30,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-03-15 14:40:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:30,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:30,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:30,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 14:40:30,336 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:30,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2050379897, now seen corresponding path program 34 times [2022-03-15 14:40:30,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:30,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570886897] [2022-03-15 14:40:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:30,985 INFO 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 14:40:30,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:30,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570886897] [2022-03-15 14:40:30,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570886897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:30,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:30,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:30,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585443842] [2022-03-15 14:40:30,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:30,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:30,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:30,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:30,986 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:32,596 INFO L93 Difference]: Finished difference Result 56503 states and 222155 transitions. [2022-03-15 14:40:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:32,949 INFO L225 Difference]: With dead ends: 56503 [2022-03-15 14:40:32,949 INFO L226 Difference]: Without dead ends: 55921 [2022-03-15 14:40:32,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:32,950 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 710 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:32,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 2917 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:40:33,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55921 states. [2022-03-15 14:40:33,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55921 to 24460. [2022-03-15 14:40:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states 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 14:40:33,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-03-15 14:40:33,870 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-03-15 14:40:33,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:33,870 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-03-15 14:40:33,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:33,871 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-03-15 14:40:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:33,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:33,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:33,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 14:40:33,920 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 562061277, now seen corresponding path program 35 times [2022-03-15 14:40:33,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:33,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345205583] [2022-03-15 14:40:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:33,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:34,524 INFO 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 14:40:34,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:34,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345205583] [2022-03-15 14:40:34,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345205583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:34,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:34,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:34,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72362785] [2022-03-15 14:40:34,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:34,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:34,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:34,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:34,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:34,526 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:36,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:36,075 INFO L93 Difference]: Finished difference Result 55918 states and 220187 transitions. [2022-03-15 14:40:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:36,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:36,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:36,468 INFO L225 Difference]: With dead ends: 55918 [2022-03-15 14:40:36,468 INFO L226 Difference]: Without dead ends: 55219 [2022-03-15 14:40:36,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:36,469 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 768 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:36,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 2591 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:40:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55219 states. [2022-03-15 14:40:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55219 to 24316. [2022-03-15 14:40:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.009047912811022) internal successors, (97480), 24315 states have internal predecessors, (97480), 0 states have call successors, (0), 0 states 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 14:40:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97480 transitions. [2022-03-15 14:40:37,333 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97480 transitions. Word has length 117 [2022-03-15 14:40:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:37,333 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97480 transitions. [2022-03-15 14:40:37,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97480 transitions. [2022-03-15 14:40:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:37,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:37,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:37,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 14:40:37,383 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:37,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1103717495, now seen corresponding path program 36 times [2022-03-15 14:40:37,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:37,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220775812] [2022-03-15 14:40:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:37,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:38,184 INFO 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 14:40:38,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:38,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220775812] [2022-03-15 14:40:38,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220775812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:38,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:38,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:38,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627486730] [2022-03-15 14:40:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:38,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:38,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:38,185 INFO L87 Difference]: Start difference. First operand 24316 states and 97480 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:39,822 INFO L93 Difference]: Finished difference Result 55882 states and 220040 transitions. [2022-03-15 14:40:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:40,040 INFO L225 Difference]: With dead ends: 55882 [2022-03-15 14:40:40,040 INFO L226 Difference]: Without dead ends: 55300 [2022-03-15 14:40:40,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:40,041 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 657 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:40,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2695 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:40,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55300 states. [2022-03-15 14:40:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55300 to 24424. [2022-03-15 14:40:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.007902387094132) internal successors, (97885), 24423 states have internal predecessors, (97885), 0 states have call successors, (0), 0 states 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 14:40:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97885 transitions. [2022-03-15 14:40:40,960 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97885 transitions. Word has length 117 [2022-03-15 14:40:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:40,960 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97885 transitions. [2022-03-15 14:40:40,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97885 transitions. [2022-03-15 14:40:41,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:41,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:41,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:41,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 14:40:41,011 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:41,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:41,012 INFO L85 PathProgramCache]: Analyzing trace with hash -578808627, now seen corresponding path program 37 times [2022-03-15 14:40:41,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:41,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479463369] [2022-03-15 14:40:41,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:41,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:41,833 INFO 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 14:40:41,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:41,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479463369] [2022-03-15 14:40:41,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479463369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:41,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:41,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:41,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132077841] [2022-03-15 14:40:41,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:41,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:41,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:41,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:41,834 INFO L87 Difference]: Start difference. First operand 24424 states and 97885 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:43,445 INFO L93 Difference]: Finished difference Result 55855 states and 219914 transitions. [2022-03-15 14:40:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:43,445 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:43,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:43,641 INFO L225 Difference]: With dead ends: 55855 [2022-03-15 14:40:43,642 INFO L226 Difference]: Without dead ends: 55264 [2022-03-15 14:40:43,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:43,642 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 742 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:43,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 2765 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:43,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55264 states. [2022-03-15 14:40:44,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55264 to 24388. [2022-03-15 14:40:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24388 states, 24387 states have (on average 4.0077910362078155) internal successors, (97738), 24387 states have internal predecessors, (97738), 0 states have call successors, (0), 0 states 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 14:40:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 97738 transitions. [2022-03-15 14:40:44,452 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 97738 transitions. Word has length 117 [2022-03-15 14:40:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:44,453 INFO L470 AbstractCegarLoop]: Abstraction has 24388 states and 97738 transitions. [2022-03-15 14:40:44,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 97738 transitions. [2022-03-15 14:40:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:44,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:44,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:44,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 14:40:44,499 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash -793395329, now seen corresponding path program 38 times [2022-03-15 14:40:44,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:44,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036475702] [2022-03-15 14:40:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:44,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:45,289 INFO 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 14:40:45,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:45,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036475702] [2022-03-15 14:40:45,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036475702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:45,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:45,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:45,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108151666] [2022-03-15 14:40:45,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:45,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:45,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:45,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:45,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:45,291 INFO L87 Difference]: Start difference. First operand 24388 states and 97738 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:46,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:46,859 INFO L93 Difference]: Finished difference Result 55261 states and 217925 transitions. [2022-03-15 14:40:46,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:46,859 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:47,047 INFO L225 Difference]: With dead ends: 55261 [2022-03-15 14:40:47,047 INFO L226 Difference]: Without dead ends: 53986 [2022-03-15 14:40:47,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:47,050 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 629 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:47,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2629 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:40:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53986 states. [2022-03-15 14:40:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53986 to 23884. [2022-03-15 14:40:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23884 states, 23883 states have (on average 4.0157434158187835) internal successors, (95908), 23883 states have internal predecessors, (95908), 0 states have call successors, (0), 0 states 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 14:40:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23884 states to 23884 states and 95908 transitions. [2022-03-15 14:40:47,906 INFO L78 Accepts]: Start accepts. Automaton has 23884 states and 95908 transitions. Word has length 117 [2022-03-15 14:40:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:47,906 INFO L470 AbstractCegarLoop]: Abstraction has 23884 states and 95908 transitions. [2022-03-15 14:40:47,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23884 states and 95908 transitions. [2022-03-15 14:40:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:48,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:48,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:48,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 14:40:48,131 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:48,131 INFO L85 PathProgramCache]: Analyzing trace with hash -353600917, now seen corresponding path program 39 times [2022-03-15 14:40:48,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:48,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756907985] [2022-03-15 14:40:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:48,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:48,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:48,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756907985] [2022-03-15 14:40:48,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756907985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:48,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:48,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:48,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887478132] [2022-03-15 14:40:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:48,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:48,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:48,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:48,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:48,759 INFO L87 Difference]: Start difference. First operand 23884 states and 95908 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:50,473 INFO L93 Difference]: Finished difference Result 58096 states and 228389 transitions. [2022-03-15 14:40:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:50,666 INFO L225 Difference]: With dead ends: 58096 [2022-03-15 14:40:50,667 INFO L226 Difference]: Without dead ends: 57502 [2022-03-15 14:40:50,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:50,667 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 831 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:50,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2869 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:40:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57502 states. [2022-03-15 14:40:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57502 to 24865. [2022-03-15 14:40:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.018500643500643) internal successors, (99916), 24864 states have internal predecessors, (99916), 0 states have call successors, (0), 0 states 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 14:40:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99916 transitions. [2022-03-15 14:40:51,761 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99916 transitions. Word has length 117 [2022-03-15 14:40:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:51,761 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99916 transitions. [2022-03-15 14:40:51,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99916 transitions. [2022-03-15 14:40:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:51,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:51,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:51,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 14:40:51,819 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:51,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:51,820 INFO L85 PathProgramCache]: Analyzing trace with hash 979266699, now seen corresponding path program 40 times [2022-03-15 14:40:51,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:51,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002065086] [2022-03-15 14:40:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:52,505 INFO 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 14:40:52,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:52,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002065086] [2022-03-15 14:40:52,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002065086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:52,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:52,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:52,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500235854] [2022-03-15 14:40:52,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:52,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:52,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:52,507 INFO L87 Difference]: Start difference. First operand 24865 states and 99916 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:54,536 INFO L93 Difference]: Finished difference Result 57499 states and 226382 transitions. [2022-03-15 14:40:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:54,537 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:54,799 INFO L225 Difference]: With dead ends: 57499 [2022-03-15 14:40:54,799 INFO L226 Difference]: Without dead ends: 56872 [2022-03-15 14:40:54,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:54,799 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 727 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:54,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 2964 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:40:54,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56872 states. [2022-03-15 14:40:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56872 to 24820. [2022-03-15 14:40:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.018534187517628) internal successors, (99736), 24819 states have internal predecessors, (99736), 0 states have call successors, (0), 0 states 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 14:40:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99736 transitions. [2022-03-15 14:40:55,719 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99736 transitions. Word has length 117 [2022-03-15 14:40:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:55,719 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99736 transitions. [2022-03-15 14:40:55,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99736 transitions. [2022-03-15 14:40:55,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:55,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:55,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:55,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 14:40:55,773 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:55,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash -972231255, now seen corresponding path program 41 times [2022-03-15 14:40:55,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:55,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796334628] [2022-03-15 14:40:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:56,552 INFO 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 14:40:56,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:56,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796334628] [2022-03-15 14:40:56,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796334628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:56,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:56,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:40:56,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717890384] [2022-03-15 14:40:56,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:56,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:40:56,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:40:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:40:56,553 INFO L87 Difference]: Start difference. First operand 24820 states and 99736 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:58,282 INFO L93 Difference]: Finished difference Result 56869 states and 224270 transitions. [2022-03-15 14:40:58,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:40:58,282 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:40:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:58,472 INFO L225 Difference]: With dead ends: 56869 [2022-03-15 14:40:58,473 INFO L226 Difference]: Without dead ends: 55699 [2022-03-15 14:40:58,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:40:58,473 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 644 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:58,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2879 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:40:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55699 states. [2022-03-15 14:40:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55699 to 24685. [2022-03-15 14:40:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24685 states, 24684 states have (on average 4.014989466861125) internal successors, (99106), 24684 states have internal predecessors, (99106), 0 states have call successors, (0), 0 states 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 14:40:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24685 states to 24685 states and 99106 transitions. [2022-03-15 14:40:59,573 INFO L78 Accepts]: Start accepts. Automaton has 24685 states and 99106 transitions. Word has length 117 [2022-03-15 14:40:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:59,573 INFO L470 AbstractCegarLoop]: Abstraction has 24685 states and 99106 transitions. [2022-03-15 14:40:59,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:40:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 24685 states and 99106 transitions. [2022-03-15 14:40:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:40:59,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:59,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:59,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 14:40:59,631 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash 631923851, now seen corresponding path program 42 times [2022-03-15 14:40:59,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:59,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845071244] [2022-03-15 14:40:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:59,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:00,265 INFO 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 14:41:00,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:00,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845071244] [2022-03-15 14:41:00,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845071244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:00,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:00,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:00,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910133350] [2022-03-15 14:41:00,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:00,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:00,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:00,266 INFO L87 Difference]: Start difference. First operand 24685 states and 99106 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:02,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:02,008 INFO L93 Difference]: Finished difference Result 57463 states and 226202 transitions. [2022-03-15 14:41:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:02,009 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:02,353 INFO L225 Difference]: With dead ends: 57463 [2022-03-15 14:41:02,354 INFO L226 Difference]: Without dead ends: 56869 [2022-03-15 14:41:02,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:02,354 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 751 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:02,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2826 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:41:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56869 states. [2022-03-15 14:41:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56869 to 24865. [2022-03-15 14:41:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.013071106821107) internal successors, (99781), 24864 states have internal predecessors, (99781), 0 states have call successors, (0), 0 states 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 14:41:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99781 transitions. [2022-03-15 14:41:03,267 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99781 transitions. Word has length 117 [2022-03-15 14:41:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:03,267 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99781 transitions. [2022-03-15 14:41:03,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99781 transitions. [2022-03-15 14:41:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:03,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:03,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:03,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 14:41:03,322 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:03,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1964791467, now seen corresponding path program 43 times [2022-03-15 14:41:03,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:03,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18330871] [2022-03-15 14:41:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:04,115 INFO 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 14:41:04,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:04,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18330871] [2022-03-15 14:41:04,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18330871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:04,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:04,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:04,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230942343] [2022-03-15 14:41:04,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:04,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:04,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:04,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:04,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:04,117 INFO L87 Difference]: Start difference. First operand 24865 states and 99781 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:05,925 INFO L93 Difference]: Finished difference Result 57451 states and 226127 transitions. [2022-03-15 14:41:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:05,926 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:06,150 INFO L225 Difference]: With dead ends: 57451 [2022-03-15 14:41:06,151 INFO L226 Difference]: Without dead ends: 56824 [2022-03-15 14:41:06,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:06,151 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 676 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:06,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 2922 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:41:06,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56824 states. [2022-03-15 14:41:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56824 to 24820. [2022-03-15 14:41:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.013094806398324) internal successors, (99601), 24819 states have internal predecessors, (99601), 0 states have call successors, (0), 0 states 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 14:41:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99601 transitions. [2022-03-15 14:41:07,113 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99601 transitions. Word has length 117 [2022-03-15 14:41:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:07,114 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99601 transitions. [2022-03-15 14:41:07,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99601 transitions. [2022-03-15 14:41:07,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:07,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:07,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:07,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 14:41:07,166 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:07,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:07,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1915392599, now seen corresponding path program 44 times [2022-03-15 14:41:07,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:07,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997815487] [2022-03-15 14:41:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:08,014 INFO 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 14:41:08,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:08,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997815487] [2022-03-15 14:41:08,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997815487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:08,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:08,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:08,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419779582] [2022-03-15 14:41:08,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:08,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:08,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:08,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:08,016 INFO L87 Difference]: Start difference. First operand 24820 states and 99601 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:09,728 INFO L93 Difference]: Finished difference Result 56821 states and 224015 transitions. [2022-03-15 14:41:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:09,729 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:09,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:09,913 INFO L225 Difference]: With dead ends: 56821 [2022-03-15 14:41:09,914 INFO L226 Difference]: Without dead ends: 55294 [2022-03-15 14:41:09,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:09,915 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 670 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:09,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 2618 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55294 states. [2022-03-15 14:41:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55294 to 24280. [2022-03-15 14:41:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.016351579554347) internal successors, (97513), 24279 states have internal predecessors, (97513), 0 states have call successors, (0), 0 states 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 14:41:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97513 transitions. [2022-03-15 14:41:10,932 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97513 transitions. Word has length 117 [2022-03-15 14:41:10,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:10,942 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97513 transitions. [2022-03-15 14:41:10,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97513 transitions. [2022-03-15 14:41:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:10,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:10,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:10,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 14:41:10,999 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:11,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:11,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1164415243, now seen corresponding path program 45 times [2022-03-15 14:41:11,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:11,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064331919] [2022-03-15 14:41:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:11,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:11,639 INFO 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 14:41:11,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:11,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064331919] [2022-03-15 14:41:11,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064331919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:11,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:11,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:11,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120853871] [2022-03-15 14:41:11,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:11,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:11,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:11,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:11,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:11,640 INFO L87 Difference]: Start difference. First operand 24280 states and 97513 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:13,283 INFO L93 Difference]: Finished difference Result 58171 states and 228598 transitions. [2022-03-15 14:41:13,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:13,284 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:13,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:13,480 INFO L225 Difference]: With dead ends: 58171 [2022-03-15 14:41:13,480 INFO L226 Difference]: Without dead ends: 57577 [2022-03-15 14:41:13,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:13,481 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 752 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:13,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2948 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57577 states. [2022-03-15 14:41:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57577 to 24496. [2022-03-15 14:41:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.01498264952031) internal successors, (98347), 24495 states have internal predecessors, (98347), 0 states have call successors, (0), 0 states 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 14:41:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98347 transitions. [2022-03-15 14:41:14,500 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98347 transitions. Word has length 117 [2022-03-15 14:41:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:14,500 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98347 transitions. [2022-03-15 14:41:14,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98347 transitions. [2022-03-15 14:41:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:14,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:14,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:14,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 14:41:14,551 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1797684437, now seen corresponding path program 46 times [2022-03-15 14:41:14,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:14,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970303129] [2022-03-15 14:41:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:15,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:15,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970303129] [2022-03-15 14:41:15,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970303129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:15,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:15,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:15,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861205725] [2022-03-15 14:41:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:15,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:15,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:15,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:15,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:15,194 INFO L87 Difference]: Start difference. First operand 24496 states and 98347 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:17,024 INFO L93 Difference]: Finished difference Result 58159 states and 228523 transitions. [2022-03-15 14:41:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:17,025 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:17,247 INFO L225 Difference]: With dead ends: 58159 [2022-03-15 14:41:17,247 INFO L226 Difference]: Without dead ends: 57532 [2022-03-15 14:41:17,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:17,248 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 728 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:17,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 2948 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:41:17,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57532 states. [2022-03-15 14:41:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57532 to 24451. [2022-03-15 14:41:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.015010224948875) internal successors, (98167), 24450 states have internal predecessors, (98167), 0 states have call successors, (0), 0 states 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 14:41:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98167 transitions. [2022-03-15 14:41:18,169 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98167 transitions. Word has length 117 [2022-03-15 14:41:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:18,169 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98167 transitions. [2022-03-15 14:41:18,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:18,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98167 transitions. [2022-03-15 14:41:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:18,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:18,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:18,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 14:41:18,217 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1382901207, now seen corresponding path program 47 times [2022-03-15 14:41:18,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:18,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030799697] [2022-03-15 14:41:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:19,037 INFO 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 14:41:19,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:19,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030799697] [2022-03-15 14:41:19,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030799697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:19,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:19,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:19,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507047196] [2022-03-15 14:41:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:19,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:19,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:19,039 INFO L87 Difference]: Start difference. First operand 24451 states and 98167 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:20,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:20,730 INFO L93 Difference]: Finished difference Result 58519 states and 229828 transitions. [2022-03-15 14:41:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:20,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:20,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:20,943 INFO L225 Difference]: With dead ends: 58519 [2022-03-15 14:41:20,943 INFO L226 Difference]: Without dead ends: 57397 [2022-03-15 14:41:20,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:20,943 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 778 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:20,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2932 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2022-03-15 14:41:21,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 24316. [2022-03-15 14:41:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.015463705531565) internal successors, (97636), 24315 states have internal predecessors, (97636), 0 states have call successors, (0), 0 states 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 14:41:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97636 transitions. [2022-03-15 14:41:21,871 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97636 transitions. Word has length 117 [2022-03-15 14:41:21,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:21,871 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97636 transitions. [2022-03-15 14:41:21,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97636 transitions. [2022-03-15 14:41:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:22,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:22,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:22,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 14:41:22,105 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1676162849, now seen corresponding path program 48 times [2022-03-15 14:41:22,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:22,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837744866] [2022-03-15 14:41:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:22,815 INFO 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 14:41:22,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:22,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837744866] [2022-03-15 14:41:22,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837744866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:22,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:22,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:22,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618598153] [2022-03-15 14:41:22,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:22,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:22,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:22,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:22,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:22,817 INFO L87 Difference]: Start difference. First operand 24316 states and 97636 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:24,496 INFO L93 Difference]: Finished difference Result 58633 states and 230031 transitions. [2022-03-15 14:41:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:24,713 INFO L225 Difference]: With dead ends: 58633 [2022-03-15 14:41:24,713 INFO L226 Difference]: Without dead ends: 58039 [2022-03-15 14:41:24,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:24,713 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 811 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:24,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 2907 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:24,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-03-15 14:41:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24373. [2022-03-15 14:41:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.013786312161497) internal successors, (97824), 24372 states have internal predecessors, (97824), 0 states have call successors, (0), 0 states 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 14:41:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97824 transitions. [2022-03-15 14:41:25,835 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97824 transitions. Word has length 117 [2022-03-15 14:41:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:25,835 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97824 transitions. [2022-03-15 14:41:25,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97824 transitions. [2022-03-15 14:41:25,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:25,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:25,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:25,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 14:41:25,883 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1285936831, now seen corresponding path program 49 times [2022-03-15 14:41:25,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:25,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927276623] [2022-03-15 14:41:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:25,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:26,491 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 14:41:26,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:26,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927276623] [2022-03-15 14:41:26,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927276623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:26,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:26,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:26,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243650799] [2022-03-15 14:41:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:26,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:26,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:26,493 INFO L87 Difference]: Start difference. First operand 24373 states and 97824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:28,201 INFO L93 Difference]: Finished difference Result 58621 states and 229956 transitions. [2022-03-15 14:41:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:28,552 INFO L225 Difference]: With dead ends: 58621 [2022-03-15 14:41:28,552 INFO L226 Difference]: Without dead ends: 57994 [2022-03-15 14:41:28,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:28,552 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 841 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:28,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 2850 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57994 states. [2022-03-15 14:41:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57994 to 24328. [2022-03-15 14:41:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.015168331483537) internal successors, (97677), 24327 states have internal predecessors, (97677), 0 states have call successors, (0), 0 states 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 14:41:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97677 transitions. [2022-03-15 14:41:29,482 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97677 transitions. Word has length 117 [2022-03-15 14:41:29,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:29,482 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97677 transitions. [2022-03-15 14:41:29,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97677 transitions. [2022-03-15 14:41:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:29,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:29,533 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] [2022-03-15 14:41:29,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 14:41:29,533 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:29,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1057460619, now seen corresponding path program 50 times [2022-03-15 14:41:29,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:29,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315691234] [2022-03-15 14:41:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:30,057 INFO 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 14:41:30,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:30,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315691234] [2022-03-15 14:41:30,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315691234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:30,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:30,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:30,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810019885] [2022-03-15 14:41:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:30,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:30,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:30,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:30,058 INFO L87 Difference]: Start difference. First operand 24328 states and 97677 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:31,977 INFO L93 Difference]: Finished difference Result 57856 states and 227382 transitions. [2022-03-15 14:41:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:31,977 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:32,187 INFO L225 Difference]: With dead ends: 57856 [2022-03-15 14:41:32,187 INFO L226 Difference]: Without dead ends: 57262 [2022-03-15 14:41:32,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:32,188 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 860 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:32,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 2819 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:32,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-03-15 14:41:32,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24364. [2022-03-15 14:41:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013791404999385) internal successors, (97788), 24363 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states 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 14:41:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97788 transitions. [2022-03-15 14:41:33,068 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97788 transitions. Word has length 117 [2022-03-15 14:41:33,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:33,069 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97788 transitions. [2022-03-15 14:41:33,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97788 transitions. [2022-03-15 14:41:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:33,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:33,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:33,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 14:41:33,116 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2117471713, now seen corresponding path program 51 times [2022-03-15 14:41:33,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:33,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392789756] [2022-03-15 14:41:33,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:33,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:33,890 INFO 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 14:41:33,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:33,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392789756] [2022-03-15 14:41:33,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392789756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:33,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:33,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:33,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352257879] [2022-03-15 14:41:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:33,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:33,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:33,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:33,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:33,891 INFO L87 Difference]: Start difference. First operand 24364 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:35,493 INFO L93 Difference]: Finished difference Result 57367 states and 225789 transitions. [2022-03-15 14:41:35,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:35,494 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:35,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:35,691 INFO L225 Difference]: With dead ends: 57367 [2022-03-15 14:41:35,691 INFO L226 Difference]: Without dead ends: 56776 [2022-03-15 14:41:35,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:35,692 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 813 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:35,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 2747 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:41:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56776 states. [2022-03-15 14:41:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56776 to 24328. [2022-03-15 14:41:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.014675052410902) internal successors, (97665), 24327 states have internal predecessors, (97665), 0 states have call successors, (0), 0 states 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 14:41:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97665 transitions. [2022-03-15 14:41:36,533 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97665 transitions. Word has length 117 [2022-03-15 14:41:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:36,533 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97665 transitions. [2022-03-15 14:41:36,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97665 transitions. [2022-03-15 14:41:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:36,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:36,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:36,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 14:41:36,581 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:36,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:36,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1509636011, now seen corresponding path program 52 times [2022-03-15 14:41:36,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:36,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912417904] [2022-03-15 14:41:36,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:36,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:37,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:37,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912417904] [2022-03-15 14:41:37,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912417904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:37,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:37,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:37,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094601710] [2022-03-15 14:41:37,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:37,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:37,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:37,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:37,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:37,395 INFO L87 Difference]: Start difference. First operand 24328 states and 97665 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:39,135 INFO L93 Difference]: Finished difference Result 57952 states and 227745 transitions. [2022-03-15 14:41:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:39,135 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:39,342 INFO L225 Difference]: With dead ends: 57952 [2022-03-15 14:41:39,342 INFO L226 Difference]: Without dead ends: 57370 [2022-03-15 14:41:39,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:39,343 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 778 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:39,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2843 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57370 states. [2022-03-15 14:41:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57370 to 24364. [2022-03-15 14:41:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013298854820835) internal successors, (97776), 24363 states have internal predecessors, (97776), 0 states have call successors, (0), 0 states 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 14:41:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97776 transitions. [2022-03-15 14:41:40,459 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97776 transitions. Word has length 117 [2022-03-15 14:41:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:40,459 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97776 transitions. [2022-03-15 14:41:40,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97776 transitions. [2022-03-15 14:41:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:40,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:40,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:40,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 14:41:40,565 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -172890111, now seen corresponding path program 53 times [2022-03-15 14:41:40,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:40,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504286721] [2022-03-15 14:41:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:41,510 INFO 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 14:41:41,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:41,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504286721] [2022-03-15 14:41:41,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504286721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:41,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:41,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:41,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251002572] [2022-03-15 14:41:41,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:41,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:41,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:41,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:41,511 INFO L87 Difference]: Start difference. First operand 24364 states and 97776 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:43,256 INFO L93 Difference]: Finished difference Result 57367 states and 225777 transitions. [2022-03-15 14:41:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:43,257 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:43,458 INFO L225 Difference]: With dead ends: 57367 [2022-03-15 14:41:43,458 INFO L226 Difference]: Without dead ends: 56764 [2022-03-15 14:41:43,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:43,459 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 656 mSDsluCounter, 3109 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:43,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 2920 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56764 states. [2022-03-15 14:41:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56764 to 24316. [2022-03-15 14:41:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.0149701830146) internal successors, (97624), 24315 states have internal predecessors, (97624), 0 states have call successors, (0), 0 states 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 14:41:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97624 transitions. [2022-03-15 14:41:44,569 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97624 transitions. Word has length 117 [2022-03-15 14:41:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:44,569 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97624 transitions. [2022-03-15 14:41:44,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97624 transitions. [2022-03-15 14:41:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:44,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:44,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:44,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 14:41:44,619 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash -619489025, now seen corresponding path program 54 times [2022-03-15 14:41:44,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:44,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136814184] [2022-03-15 14:41:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:44,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:45,242 INFO 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 14:41:45,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:45,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136814184] [2022-03-15 14:41:45,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136814184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:45,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:45,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:45,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650026320] [2022-03-15 14:41:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:45,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:45,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:45,244 INFO L87 Difference]: Start difference. First operand 24316 states and 97624 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:46,782 INFO L93 Difference]: Finished difference Result 57202 states and 225163 transitions. [2022-03-15 14:41:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:46,782 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:47,129 INFO L225 Difference]: With dead ends: 57202 [2022-03-15 14:41:47,129 INFO L226 Difference]: Without dead ends: 56215 [2022-03-15 14:41:47,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:47,129 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 864 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:47,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2561 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:41:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56215 states. [2022-03-15 14:41:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56215 to 24424. [2022-03-15 14:41:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.010850427875363) internal successors, (97957), 24423 states have internal predecessors, (97957), 0 states have call successors, (0), 0 states 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 14:41:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97957 transitions. [2022-03-15 14:41:48,020 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97957 transitions. Word has length 117 [2022-03-15 14:41:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:48,021 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97957 transitions. [2022-03-15 14:41:48,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97957 transitions. [2022-03-15 14:41:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:48,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:48,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:48,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 14:41:48,072 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:48,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1988454359, now seen corresponding path program 55 times [2022-03-15 14:41:48,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:48,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462446413] [2022-03-15 14:41:48,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:48,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:48,664 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 14:41:48,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:48,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462446413] [2022-03-15 14:41:48,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462446413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:48,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:48,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:48,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806834228] [2022-03-15 14:41:48,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:48,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:48,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:48,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:48,666 INFO L87 Difference]: Start difference. First operand 24424 states and 97957 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:50,377 INFO L93 Difference]: Finished difference Result 56806 states and 223627 transitions. [2022-03-15 14:41:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:50,758 INFO L225 Difference]: With dead ends: 56806 [2022-03-15 14:41:50,759 INFO L226 Difference]: Without dead ends: 56224 [2022-03-15 14:41:50,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:50,759 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 769 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:50,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 2791 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-03-15 14:41:51,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-03-15 14:41:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.009485261049103) internal successors, (98068), 24459 states have internal predecessors, (98068), 0 states have call successors, (0), 0 states 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 14:41:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98068 transitions. [2022-03-15 14:41:51,686 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98068 transitions. Word has length 117 [2022-03-15 14:41:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:51,686 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98068 transitions. [2022-03-15 14:41:51,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:51,686 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98068 transitions. [2022-03-15 14:41:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:51,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:51,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:51,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 14:41:51,736 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:51,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash 623986815, now seen corresponding path program 56 times [2022-03-15 14:41:51,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:51,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038817173] [2022-03-15 14:41:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:51,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:52,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:52,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038817173] [2022-03-15 14:41:52,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038817173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:52,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:52,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:52,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054503018] [2022-03-15 14:41:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:52,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:52,524 INFO L87 Difference]: Start difference. First operand 24460 states and 98068 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:54,232 INFO L93 Difference]: Finished difference Result 56221 states and 221659 transitions. [2022-03-15 14:41:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:54,232 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:54,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:54,438 INFO L225 Difference]: With dead ends: 56221 [2022-03-15 14:41:54,438 INFO L226 Difference]: Without dead ends: 55486 [2022-03-15 14:41:54,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:54,439 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 641 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:54,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 2818 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55486 states. [2022-03-15 14:41:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55486 to 24280. [2022-03-15 14:41:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014868816672845) internal successors, (97477), 24279 states have internal predecessors, (97477), 0 states have call successors, (0), 0 states 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 14:41:55,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97477 transitions. [2022-03-15 14:41:55,295 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97477 transitions. Word has length 117 [2022-03-15 14:41:55,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:55,295 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97477 transitions. [2022-03-15 14:41:55,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97477 transitions. [2022-03-15 14:41:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:55,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:55,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:55,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 14:41:55,343 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:55,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:55,344 INFO L85 PathProgramCache]: Analyzing trace with hash 415560427, now seen corresponding path program 57 times [2022-03-15 14:41:55,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:55,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646204936] [2022-03-15 14:41:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:55,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:56,189 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 14:41:56,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:56,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646204936] [2022-03-15 14:41:56,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646204936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:56,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:56,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:56,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875387483] [2022-03-15 14:41:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:56,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:56,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:56,191 INFO L87 Difference]: Start difference. First operand 24280 states and 97477 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:57,903 INFO L93 Difference]: Finished difference Result 58804 states and 230614 transitions. [2022-03-15 14:41:57,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:41:57,903 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:41:57,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:58,107 INFO L225 Difference]: With dead ends: 58804 [2022-03-15 14:41:58,108 INFO L226 Difference]: Without dead ends: 58210 [2022-03-15 14:41:58,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:41:58,108 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 822 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:58,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 2875 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58210 states. [2022-03-15 14:41:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58210 to 24496. [2022-03-15 14:41:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.013512961828945) internal successors, (98311), 24495 states have internal predecessors, (98311), 0 states have call successors, (0), 0 states 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 14:41:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98311 transitions. [2022-03-15 14:41:59,170 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98311 transitions. Word has length 117 [2022-03-15 14:41:59,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:59,171 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98311 transitions. [2022-03-15 14:41:59,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:41:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98311 transitions. [2022-03-15 14:41:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:41:59,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:59,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:59,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 14:41:59,227 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1748428043, now seen corresponding path program 58 times [2022-03-15 14:41:59,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:59,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68538928] [2022-03-15 14:41:59,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:59,895 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 14:41:59,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:59,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68538928] [2022-03-15 14:41:59,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68538928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:59,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:59,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:41:59,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503879193] [2022-03-15 14:41:59,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:59,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:41:59,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:59,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:41:59,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:41:59,897 INFO L87 Difference]: Start difference. First operand 24496 states and 98311 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:01,550 INFO L93 Difference]: Finished difference Result 58207 states and 228607 transitions. [2022-03-15 14:42:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:01,550 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:01,764 INFO L225 Difference]: With dead ends: 58207 [2022-03-15 14:42:01,765 INFO L226 Difference]: Without dead ends: 57580 [2022-03-15 14:42:01,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:01,765 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 834 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:01,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 2885 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57580 states. [2022-03-15 14:42:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57580 to 24451. [2022-03-15 14:42:02,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.013537832310838) internal successors, (98131), 24450 states have internal predecessors, (98131), 0 states have call successors, (0), 0 states 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 14:42:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98131 transitions. [2022-03-15 14:42:02,847 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98131 transitions. Word has length 117 [2022-03-15 14:42:02,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:02,848 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98131 transitions. [2022-03-15 14:42:02,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98131 transitions. [2022-03-15 14:42:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:02,896 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:02,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:02,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 14:42:02,897 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:02,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash -203069911, now seen corresponding path program 59 times [2022-03-15 14:42:02,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:02,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150811857] [2022-03-15 14:42:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:03,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:03,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150811857] [2022-03-15 14:42:03,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150811857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:03,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:03,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:03,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166041607] [2022-03-15 14:42:03,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:03,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:03,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:03,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:03,582 INFO L87 Difference]: Start difference. First operand 24451 states and 98131 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:05,270 INFO L93 Difference]: Finished difference Result 58615 states and 230032 transitions. [2022-03-15 14:42:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:05,271 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:05,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:05,637 INFO L225 Difference]: With dead ends: 58615 [2022-03-15 14:42:05,637 INFO L226 Difference]: Without dead ends: 57445 [2022-03-15 14:42:05,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:05,638 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 897 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:05,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 2808 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57445 states. [2022-03-15 14:42:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57445 to 24316. [2022-03-15 14:42:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01398313798067) internal successors, (97600), 24315 states have internal predecessors, (97600), 0 states have call successors, (0), 0 states 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 14:42:06,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97600 transitions. [2022-03-15 14:42:06,528 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97600 transitions. Word has length 117 [2022-03-15 14:42:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:06,528 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97600 transitions. [2022-03-15 14:42:06,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97600 transitions. [2022-03-15 14:42:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:06,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:06,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:06,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 14:42:06,576 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:06,576 INFO L85 PathProgramCache]: Analyzing trace with hash -604347135, now seen corresponding path program 60 times [2022-03-15 14:42:06,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:06,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919563369] [2022-03-15 14:42:06,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:06,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:07,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:07,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919563369] [2022-03-15 14:42:07,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919563369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:07,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:07,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:07,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079532543] [2022-03-15 14:42:07,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:07,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:07,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:07,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:07,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:07,374 INFO L87 Difference]: Start difference. First operand 24316 states and 97600 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:09,134 INFO L93 Difference]: Finished difference Result 58681 states and 230115 transitions. [2022-03-15 14:42:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:09,363 INFO L225 Difference]: With dead ends: 58681 [2022-03-15 14:42:09,363 INFO L226 Difference]: Without dead ends: 58087 [2022-03-15 14:42:09,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:09,364 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 828 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:09,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 2899 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58087 states. [2022-03-15 14:42:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58087 to 24373. [2022-03-15 14:42:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.012309207287051) internal successors, (97788), 24372 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states 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 14:42:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97788 transitions. [2022-03-15 14:42:10,280 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97788 transitions. Word has length 117 [2022-03-15 14:42:10,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:10,280 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97788 transitions. [2022-03-15 14:42:10,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97788 transitions. [2022-03-15 14:42:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:10,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:10,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:10,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 14:42:10,330 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:10,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 728520481, now seen corresponding path program 61 times [2022-03-15 14:42:10,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:10,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418259215] [2022-03-15 14:42:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:10,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:11,053 INFO 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 14:42:11,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:11,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418259215] [2022-03-15 14:42:11,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418259215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:11,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:11,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:11,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117488585] [2022-03-15 14:42:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:11,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:11,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:11,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:11,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:11,055 INFO L87 Difference]: Start difference. First operand 24373 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:12,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:12,734 INFO L93 Difference]: Finished difference Result 58669 states and 230040 transitions. [2022-03-15 14:42:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:12,933 INFO L225 Difference]: With dead ends: 58669 [2022-03-15 14:42:12,933 INFO L226 Difference]: Without dead ends: 58042 [2022-03-15 14:42:12,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:12,934 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 832 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:12,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 2891 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58042 states. [2022-03-15 14:42:13,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58042 to 24328. [2022-03-15 14:42:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.01368849426563) internal successors, (97641), 24327 states have internal predecessors, (97641), 0 states have call successors, (0), 0 states 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 14:42:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97641 transitions. [2022-03-15 14:42:13,863 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97641 transitions. Word has length 117 [2022-03-15 14:42:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:13,864 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97641 transitions. [2022-03-15 14:42:13,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97641 transitions. [2022-03-15 14:42:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:14,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:14,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:14,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 14:42:14,101 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1223049365, now seen corresponding path program 62 times [2022-03-15 14:42:14,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:14,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641283018] [2022-03-15 14:42:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:14,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:14,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:14,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641283018] [2022-03-15 14:42:14,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641283018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:14,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:14,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:14,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128257166] [2022-03-15 14:42:14,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:14,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:14,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:14,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:14,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:14,792 INFO L87 Difference]: Start difference. First operand 24328 states and 97641 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:16,456 INFO L93 Difference]: Finished difference Result 58633 states and 229950 transitions. [2022-03-15 14:42:16,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:16,456 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:16,652 INFO L225 Difference]: With dead ends: 58633 [2022-03-15 14:42:16,652 INFO L226 Difference]: Without dead ends: 58039 [2022-03-15 14:42:16,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:16,652 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 859 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:16,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 2855 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-03-15 14:42:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24364. [2022-03-15 14:42:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.012313754463736) internal successors, (97752), 24363 states have internal predecessors, (97752), 0 states have call successors, (0), 0 states 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 14:42:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97752 transitions. [2022-03-15 14:42:17,681 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97752 transitions. Word has length 117 [2022-03-15 14:42:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:17,681 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97752 transitions. [2022-03-15 14:42:17,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97752 transitions. [2022-03-15 14:42:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:17,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:17,728 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] [2022-03-15 14:42:17,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 14:42:17,728 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:17,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:17,728 INFO L85 PathProgramCache]: Analyzing trace with hash -163038271, now seen corresponding path program 63 times [2022-03-15 14:42:17,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:17,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544702275] [2022-03-15 14:42:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:18,305 INFO 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 14:42:18,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:18,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544702275] [2022-03-15 14:42:18,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544702275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:18,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:18,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:18,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439902369] [2022-03-15 14:42:18,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:18,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:18,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:18,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:18,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:18,307 INFO L87 Difference]: Start difference. First operand 24364 states and 97752 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:20,046 INFO L93 Difference]: Finished difference Result 58144 states and 228357 transitions. [2022-03-15 14:42:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:20,396 INFO L225 Difference]: With dead ends: 58144 [2022-03-15 14:42:20,396 INFO L226 Difference]: Without dead ends: 57553 [2022-03-15 14:42:20,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:20,397 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 691 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:20,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 2991 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57553 states. [2022-03-15 14:42:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57553 to 24328. [2022-03-15 14:42:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.0131952151929955) internal successors, (97629), 24327 states have internal predecessors, (97629), 0 states have call successors, (0), 0 states 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 14:42:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97629 transitions. [2022-03-15 14:42:21,272 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97629 transitions. Word has length 117 [2022-03-15 14:42:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:21,273 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97629 transitions. [2022-03-15 14:42:21,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97629 transitions. [2022-03-15 14:42:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:21,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:21,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:21,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 14:42:21,319 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -770873973, now seen corresponding path program 64 times [2022-03-15 14:42:21,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:21,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055996702] [2022-03-15 14:42:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:21,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:22,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:22,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055996702] [2022-03-15 14:42:22,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055996702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:22,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:22,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:22,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378443426] [2022-03-15 14:42:22,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:22,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:22,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:22,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:22,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:22,135 INFO L87 Difference]: Start difference. First operand 24328 states and 97629 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:23,733 INFO L93 Difference]: Finished difference Result 57892 states and 227424 transitions. [2022-03-15 14:42:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:23,733 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:23,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:24,152 INFO L225 Difference]: With dead ends: 57892 [2022-03-15 14:42:24,152 INFO L226 Difference]: Without dead ends: 57310 [2022-03-15 14:42:24,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:24,152 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 954 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:24,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 2533 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:42:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57310 states. [2022-03-15 14:42:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57310 to 24364. [2022-03-15 14:42:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.011821204285186) internal successors, (97740), 24363 states have internal predecessors, (97740), 0 states have call successors, (0), 0 states 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 14:42:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97740 transitions. [2022-03-15 14:42:25,249 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97740 transitions. Word has length 117 [2022-03-15 14:42:25,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:25,249 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97740 transitions. [2022-03-15 14:42:25,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97740 transitions. [2022-03-15 14:42:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:25,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:25,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:25,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 14:42:25,300 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:25,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:25,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1841567201, now seen corresponding path program 65 times [2022-03-15 14:42:25,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:25,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319520260] [2022-03-15 14:42:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:25,908 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 14:42:25,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:25,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319520260] [2022-03-15 14:42:25,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319520260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:25,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:25,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:25,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217999451] [2022-03-15 14:42:25,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:25,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:25,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:25,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:25,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:25,910 INFO L87 Difference]: Start difference. First operand 24364 states and 97740 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:27,860 INFO L93 Difference]: Finished difference Result 57415 states and 225861 transitions. [2022-03-15 14:42:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:27,860 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:28,090 INFO L225 Difference]: With dead ends: 57415 [2022-03-15 14:42:28,091 INFO L226 Difference]: Without dead ends: 56812 [2022-03-15 14:42:28,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:28,091 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 644 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:28,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2978 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 14:42:28,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56812 states. [2022-03-15 14:42:28,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56812 to 24316. [2022-03-15 14:42:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.013489615463706) internal successors, (97588), 24315 states have internal predecessors, (97588), 0 states have call successors, (0), 0 states 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 14:42:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97588 transitions. [2022-03-15 14:42:29,056 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97588 transitions. Word has length 117 [2022-03-15 14:42:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:29,056 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97588 transitions. [2022-03-15 14:42:29,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97588 transitions. [2022-03-15 14:42:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:29,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:29,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:29,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 14:42:29,107 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2091997439, now seen corresponding path program 66 times [2022-03-15 14:42:29,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:29,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412651679] [2022-03-15 14:42:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:29,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:29,890 INFO 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 14:42:29,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:29,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412651679] [2022-03-15 14:42:29,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412651679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:29,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:29,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:29,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806992810] [2022-03-15 14:42:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:29,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:29,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:29,892 INFO L87 Difference]: Start difference. First operand 24316 states and 97588 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:31,546 INFO L93 Difference]: Finished difference Result 57262 states and 225277 transitions. [2022-03-15 14:42:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:31,546 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:31,755 INFO L225 Difference]: With dead ends: 57262 [2022-03-15 14:42:31,755 INFO L226 Difference]: Without dead ends: 56227 [2022-03-15 14:42:31,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:31,755 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 673 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:31,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 2934 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:31,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56227 states. [2022-03-15 14:42:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56227 to 24424. [2022-03-15 14:42:32,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states 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 14:42:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-03-15 14:42:32,607 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-03-15 14:42:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:32,607 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-03-15 14:42:32,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-03-15 14:42:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:32,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:32,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:32,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 14:42:32,654 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash -157660119, now seen corresponding path program 67 times [2022-03-15 14:42:32,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:32,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581541367] [2022-03-15 14:42:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:33,446 INFO 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 14:42:33,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:33,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581541367] [2022-03-15 14:42:33,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581541367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:33,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:33,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:33,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233216989] [2022-03-15 14:42:33,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:33,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:33,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:33,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:33,456 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:35,048 INFO L93 Difference]: Finished difference Result 56818 states and 223621 transitions. [2022-03-15 14:42:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:35,246 INFO L225 Difference]: With dead ends: 56818 [2022-03-15 14:42:35,247 INFO L226 Difference]: Without dead ends: 56224 [2022-03-15 14:42:35,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:35,247 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 746 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:35,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 2646 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-03-15 14:42:36,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-03-15 14:42:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states 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 14:42:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-03-15 14:42:36,138 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-03-15 14:42:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:36,138 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-03-15 14:42:36,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-03-15 14:42:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:36,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:36,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 14:42:36,373 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 902350975, now seen corresponding path program 68 times [2022-03-15 14:42:36,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:36,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413255007] [2022-03-15 14:42:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:37,017 INFO 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 14:42:37,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:37,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413255007] [2022-03-15 14:42:37,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413255007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:37,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:37,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:37,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44184822] [2022-03-15 14:42:37,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:37,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:37,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:37,019 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:38,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:38,630 INFO L93 Difference]: Finished difference Result 56221 states and 221623 transitions. [2022-03-15 14:42:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:38,631 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:38,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:38,824 INFO L225 Difference]: With dead ends: 56221 [2022-03-15 14:42:38,824 INFO L226 Difference]: Without dead ends: 55378 [2022-03-15 14:42:38,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:38,824 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 648 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:38,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 2863 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55378 states. [2022-03-15 14:42:39,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55378 to 24172. [2022-03-15 14:42:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.014562905961689) internal successors, (97036), 24171 states have internal predecessors, (97036), 0 states have call successors, (0), 0 states 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 14:42:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 97036 transitions. [2022-03-15 14:42:39,848 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 97036 transitions. Word has length 117 [2022-03-15 14:42:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:39,849 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 97036 transitions. [2022-03-15 14:42:39,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 97036 transitions. [2022-03-15 14:42:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:39,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:39,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:39,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 14:42:39,900 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:39,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash 62850121, now seen corresponding path program 69 times [2022-03-15 14:42:39,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:39,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629179239] [2022-03-15 14:42:39,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:39,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:40,431 INFO 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 14:42:40,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:40,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629179239] [2022-03-15 14:42:40,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629179239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:40,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:40,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:40,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862463538] [2022-03-15 14:42:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:40,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:40,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:40,432 INFO L87 Difference]: Start difference. First operand 24172 states and 97036 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:42,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:42,187 INFO L93 Difference]: Finished difference Result 57733 states and 227399 transitions. [2022-03-15 14:42:42,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:42,188 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:42,530 INFO L225 Difference]: With dead ends: 57733 [2022-03-15 14:42:42,530 INFO L226 Difference]: Without dead ends: 57139 [2022-03-15 14:42:42,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:42,531 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 677 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:42,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 3034 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57139 states. [2022-03-15 14:42:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57139 to 24484. [2022-03-15 14:42:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 4.01429563370502) internal successors, (98282), 24483 states have internal predecessors, (98282), 0 states have call successors, (0), 0 states 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 14:42:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 98282 transitions. [2022-03-15 14:42:43,407 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 98282 transitions. Word has length 117 [2022-03-15 14:42:43,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:43,408 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 98282 transitions. [2022-03-15 14:42:43,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 98282 transitions. [2022-03-15 14:42:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:43,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:43,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:43,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 14:42:43,457 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1395717737, now seen corresponding path program 70 times [2022-03-15 14:42:43,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:43,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078629796] [2022-03-15 14:42:43,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:43,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:44,045 INFO 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 14:42:44,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:44,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078629796] [2022-03-15 14:42:44,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078629796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:44,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:44,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:44,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921719974] [2022-03-15 14:42:44,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:44,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:44,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:44,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:44,046 INFO L87 Difference]: Start difference. First operand 24484 states and 98282 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:45,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:45,890 INFO L93 Difference]: Finished difference Result 57721 states and 227324 transitions. [2022-03-15 14:42:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:45,890 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:46,100 INFO L225 Difference]: With dead ends: 57721 [2022-03-15 14:42:46,100 INFO L226 Difference]: Without dead ends: 57094 [2022-03-15 14:42:46,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:46,101 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 715 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:46,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 2843 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 14:42:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57094 states. [2022-03-15 14:42:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57094 to 24439. [2022-03-15 14:42:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24439 states, 24438 states have (on average 4.014321957607005) internal successors, (98102), 24438 states have internal predecessors, (98102), 0 states have call successors, (0), 0 states 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 14:42:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24439 states to 24439 states and 98102 transitions. [2022-03-15 14:42:46,995 INFO L78 Accepts]: Start accepts. Automaton has 24439 states and 98102 transitions. Word has length 117 [2022-03-15 14:42:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:46,996 INFO L470 AbstractCegarLoop]: Abstraction has 24439 states and 98102 transitions. [2022-03-15 14:42:46,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 24439 states and 98102 transitions. [2022-03-15 14:42:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:47,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:47,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:47,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 14:42:47,044 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:47,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1810500967, now seen corresponding path program 71 times [2022-03-15 14:42:47,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:47,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785329461] [2022-03-15 14:42:47,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:47,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:47,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:47,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785329461] [2022-03-15 14:42:47,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785329461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:47,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:47,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:47,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289044030] [2022-03-15 14:42:47,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:47,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:47,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:47,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:47,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:47,793 INFO L87 Difference]: Start difference. First operand 24439 states and 98102 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:49,488 INFO L93 Difference]: Finished difference Result 58081 states and 228629 transitions. [2022-03-15 14:42:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:49,692 INFO L225 Difference]: With dead ends: 58081 [2022-03-15 14:42:49,692 INFO L226 Difference]: Without dead ends: 56959 [2022-03-15 14:42:49,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:49,693 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 698 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:49,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 2937 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56959 states. [2022-03-15 14:42:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56959 to 24304. [2022-03-15 14:42:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014771838867629) internal successors, (97571), 24303 states have internal predecessors, (97571), 0 states have call successors, (0), 0 states 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 14:42:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97571 transitions. [2022-03-15 14:42:50,566 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97571 transitions. Word has length 117 [2022-03-15 14:42:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:50,566 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97571 transitions. [2022-03-15 14:42:50,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97571 transitions. [2022-03-15 14:42:50,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:50,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:50,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:50,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 14:42:50,614 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:50,615 INFO L85 PathProgramCache]: Analyzing trace with hash 574597727, now seen corresponding path program 72 times [2022-03-15 14:42:50,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:50,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715528266] [2022-03-15 14:42:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:50,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:51,430 INFO 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 14:42:51,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:51,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715528266] [2022-03-15 14:42:51,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715528266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:51,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:51,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:51,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953228431] [2022-03-15 14:42:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:51,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:51,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:51,432 INFO L87 Difference]: Start difference. First operand 24304 states and 97571 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:53,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:53,046 INFO L93 Difference]: Finished difference Result 58972 states and 231469 transitions. [2022-03-15 14:42:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:53,047 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:53,248 INFO L225 Difference]: With dead ends: 58972 [2022-03-15 14:42:53,248 INFO L226 Difference]: Without dead ends: 58378 [2022-03-15 14:42:53,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:53,248 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 762 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:53,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 3025 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:42:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58378 states. [2022-03-15 14:42:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58378 to 24361. [2022-03-15 14:42:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 24360 states have (on average 4.0130952380952385) internal successors, (97759), 24360 states have internal predecessors, (97759), 0 states have call successors, (0), 0 states 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 14:42:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 97759 transitions. [2022-03-15 14:42:54,314 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 97759 transitions. Word has length 117 [2022-03-15 14:42:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:54,314 INFO L470 AbstractCegarLoop]: Abstraction has 24361 states and 97759 transitions. [2022-03-15 14:42:54,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 97759 transitions. [2022-03-15 14:42:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:54,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:54,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:54,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 14:42:54,365 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:54,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:54,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1907465343, now seen corresponding path program 73 times [2022-03-15 14:42:54,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:54,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778486252] [2022-03-15 14:42:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:54,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:55,005 INFO 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 14:42:55,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:55,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778486252] [2022-03-15 14:42:55,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778486252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:55,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:55,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:55,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82775916] [2022-03-15 14:42:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:55,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:55,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:55,006 INFO L87 Difference]: Start difference. First operand 24361 states and 97759 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:56,687 INFO L93 Difference]: Finished difference Result 58960 states and 231394 transitions. [2022-03-15 14:42:56,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:42:56,687 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:42:56,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:57,047 INFO L225 Difference]: With dead ends: 58960 [2022-03-15 14:42:57,047 INFO L226 Difference]: Without dead ends: 58333 [2022-03-15 14:42:57,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:42:57,049 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 815 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:57,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2933 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:42:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58333 states. [2022-03-15 14:42:57,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58333 to 24316. [2022-03-15 14:42:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.014476660497635) internal successors, (97612), 24315 states have internal predecessors, (97612), 0 states have call successors, (0), 0 states 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 14:42:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97612 transitions. [2022-03-15 14:42:57,989 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97612 transitions. Word has length 117 [2022-03-15 14:42:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:57,989 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97612 transitions. [2022-03-15 14:42:57,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:42:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97612 transitions. [2022-03-15 14:42:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:42:58,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:58,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:58,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 14:42:58,040 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:58,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:58,040 INFO L85 PathProgramCache]: Analyzing trace with hash -44104503, now seen corresponding path program 74 times [2022-03-15 14:42:58,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:58,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765952570] [2022-03-15 14:42:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:58,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:58,654 INFO 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 14:42:58,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:58,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765952570] [2022-03-15 14:42:58,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765952570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:58,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:58,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:42:58,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699583666] [2022-03-15 14:42:58,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:58,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:42:58,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:42:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:58,656 INFO L87 Difference]: Start difference. First operand 24316 states and 97612 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:00,323 INFO L93 Difference]: Finished difference Result 58195 states and 228820 transitions. [2022-03-15 14:43:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:00,323 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:00,705 INFO L225 Difference]: With dead ends: 58195 [2022-03-15 14:43:00,705 INFO L226 Difference]: Without dead ends: 57601 [2022-03-15 14:43:00,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:00,706 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 831 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:00,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2789 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:43:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57601 states. [2022-03-15 14:43:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57601 to 24352. [2022-03-15 14:43:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.013100078025543) internal successors, (97723), 24351 states have internal predecessors, (97723), 0 states have call successors, (0), 0 states 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 14:43:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97723 transitions. [2022-03-15 14:43:01,694 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97723 transitions. Word has length 117 [2022-03-15 14:43:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:01,694 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97723 transitions. [2022-03-15 14:43:01,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97723 transitions. [2022-03-15 14:43:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:01,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:01,745 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] [2022-03-15 14:43:01,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 14:43:01,745 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1015906591, now seen corresponding path program 75 times [2022-03-15 14:43:01,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:01,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014827448] [2022-03-15 14:43:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:01,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:02,461 INFO 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 14:43:02,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:02,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014827448] [2022-03-15 14:43:02,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014827448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:02,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:02,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:02,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261575949] [2022-03-15 14:43:02,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:02,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:02,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:02,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:02,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:02,462 INFO L87 Difference]: Start difference. First operand 24352 states and 97723 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:04,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:04,167 INFO L93 Difference]: Finished difference Result 57706 states and 227227 transitions. [2022-03-15 14:43:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:04,167 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:04,395 INFO L225 Difference]: With dead ends: 57706 [2022-03-15 14:43:04,395 INFO L226 Difference]: Without dead ends: 57115 [2022-03-15 14:43:04,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:04,395 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 722 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:04,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2786 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57115 states. [2022-03-15 14:43:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57115 to 24316. [2022-03-15 14:43:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01398313798067) internal successors, (97600), 24315 states have internal predecessors, (97600), 0 states have call successors, (0), 0 states 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 14:43:05,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97600 transitions. [2022-03-15 14:43:05,331 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97600 transitions. Word has length 117 [2022-03-15 14:43:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:05,331 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97600 transitions. [2022-03-15 14:43:05,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:05,332 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97600 transitions. [2022-03-15 14:43:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:05,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:05,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:05,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 14:43:05,381 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash 408070889, now seen corresponding path program 76 times [2022-03-15 14:43:05,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:05,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234672342] [2022-03-15 14:43:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:05,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:06,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:06,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234672342] [2022-03-15 14:43:06,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234672342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:06,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:06,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:06,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622623999] [2022-03-15 14:43:06,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:06,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:06,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:06,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:06,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:06,162 INFO L87 Difference]: Start difference. First operand 24316 states and 97600 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:07,816 INFO L93 Difference]: Finished difference Result 58291 states and 229183 transitions. [2022-03-15 14:43:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:08,024 INFO L225 Difference]: With dead ends: 58291 [2022-03-15 14:43:08,024 INFO L226 Difference]: Without dead ends: 57709 [2022-03-15 14:43:08,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:08,025 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 701 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:08,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 2868 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:08,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57709 states. [2022-03-15 14:43:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57709 to 24352. [2022-03-15 14:43:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.012607285121761) internal successors, (97711), 24351 states have internal predecessors, (97711), 0 states have call successors, (0), 0 states 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 14:43:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97711 transitions. [2022-03-15 14:43:08,974 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97711 transitions. Word has length 117 [2022-03-15 14:43:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:08,974 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97711 transitions. [2022-03-15 14:43:08,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97711 transitions. [2022-03-15 14:43:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:09,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:09,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:09,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 14:43:09,258 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:09,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:09,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1274455233, now seen corresponding path program 77 times [2022-03-15 14:43:09,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:09,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157506075] [2022-03-15 14:43:09,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:09,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:09,983 INFO 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 14:43:09,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:09,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157506075] [2022-03-15 14:43:09,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157506075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:09,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:09,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:09,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509126387] [2022-03-15 14:43:09,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:09,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:09,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:09,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:09,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:09,985 INFO L87 Difference]: Start difference. First operand 24352 states and 97711 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:11,740 INFO L93 Difference]: Finished difference Result 57706 states and 227215 transitions. [2022-03-15 14:43:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:11,741 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:11,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:11,957 INFO L225 Difference]: With dead ends: 57706 [2022-03-15 14:43:11,957 INFO L226 Difference]: Without dead ends: 57103 [2022-03-15 14:43:11,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:11,958 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 671 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:11,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 2792 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57103 states. [2022-03-15 14:43:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57103 to 24304. [2022-03-15 14:43:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014278072665926) internal successors, (97559), 24303 states have internal predecessors, (97559), 0 states have call successors, (0), 0 states 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 14:43:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97559 transitions. [2022-03-15 14:43:13,107 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97559 transitions. Word has length 117 [2022-03-15 14:43:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:13,107 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97559 transitions. [2022-03-15 14:43:13,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97559 transitions. [2022-03-15 14:43:13,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:13,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:13,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:13,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 14:43:13,162 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1721054147, now seen corresponding path program 78 times [2022-03-15 14:43:13,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:13,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310371693] [2022-03-15 14:43:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:13,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:13,739 INFO 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 14:43:13,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:13,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310371693] [2022-03-15 14:43:13,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310371693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:13,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:13,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:13,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378369347] [2022-03-15 14:43:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:13,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:13,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:13,740 INFO L87 Difference]: Start difference. First operand 24304 states and 97559 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:15,371 INFO L93 Difference]: Finished difference Result 58783 states and 231011 transitions. [2022-03-15 14:43:15,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:15,372 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:15,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:15,714 INFO L225 Difference]: With dead ends: 58783 [2022-03-15 14:43:15,714 INFO L226 Difference]: Without dead ends: 57796 [2022-03-15 14:43:15,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:15,715 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 752 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:15,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2940 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57796 states. [2022-03-15 14:43:16,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57796 to 24412. [2022-03-15 14:43:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24412 states, 24411 states have (on average 4.0101593543894145) internal successors, (97892), 24411 states have internal predecessors, (97892), 0 states have call successors, (0), 0 states 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 14:43:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24412 states to 24412 states and 97892 transitions. [2022-03-15 14:43:16,588 INFO L78 Accepts]: Start accepts. Automaton has 24412 states and 97892 transitions. Word has length 117 [2022-03-15 14:43:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:16,588 INFO L470 AbstractCegarLoop]: Abstraction has 24412 states and 97892 transitions. [2022-03-15 14:43:16,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 24412 states and 97892 transitions. [2022-03-15 14:43:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:16,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:16,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:16,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 14:43:16,638 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1204947815, now seen corresponding path program 79 times [2022-03-15 14:43:16,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:16,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826365503] [2022-03-15 14:43:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:16,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:17,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:17,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826365503] [2022-03-15 14:43:17,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826365503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:17,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:17,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:17,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013265964] [2022-03-15 14:43:17,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:17,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:17,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:17,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:17,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:17,256 INFO L87 Difference]: Start difference. First operand 24412 states and 97892 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:19,059 INFO L93 Difference]: Finished difference Result 58387 states and 229475 transitions. [2022-03-15 14:43:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:19,279 INFO L225 Difference]: With dead ends: 58387 [2022-03-15 14:43:19,280 INFO L226 Difference]: Without dead ends: 57805 [2022-03-15 14:43:19,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:19,280 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 752 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:19,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2863 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:43:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57805 states. [2022-03-15 14:43:20,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57805 to 24448. [2022-03-15 14:43:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 4.008794535116783) internal successors, (98003), 24447 states have internal predecessors, (98003), 0 states have call successors, (0), 0 states 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 14:43:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 98003 transitions. [2022-03-15 14:43:20,264 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 98003 transitions. Word has length 117 [2022-03-15 14:43:20,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:20,264 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 98003 transitions. [2022-03-15 14:43:20,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:20,264 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 98003 transitions. [2022-03-15 14:43:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:20,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:20,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:20,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 14:43:20,316 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash -477578307, now seen corresponding path program 80 times [2022-03-15 14:43:20,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:20,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32656099] [2022-03-15 14:43:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:21,115 INFO 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 14:43:21,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:21,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32656099] [2022-03-15 14:43:21,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32656099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:21,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:21,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:21,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089220770] [2022-03-15 14:43:21,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:21,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:21,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:21,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:21,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:21,117 INFO L87 Difference]: Start difference. First operand 24448 states and 98003 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:22,752 INFO L93 Difference]: Finished difference Result 57802 states and 227507 transitions. [2022-03-15 14:43:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:22,973 INFO L225 Difference]: With dead ends: 57802 [2022-03-15 14:43:22,973 INFO L226 Difference]: Without dead ends: 57067 [2022-03-15 14:43:22,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:22,974 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 734 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:22,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 2742 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57067 states. [2022-03-15 14:43:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57067 to 24268. [2022-03-15 14:43:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.014175629455639) internal successors, (97412), 24267 states have internal predecessors, (97412), 0 states have call successors, (0), 0 states 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 14:43:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97412 transitions. [2022-03-15 14:43:23,912 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97412 transitions. Word has length 117 [2022-03-15 14:43:23,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:23,912 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97412 transitions. [2022-03-15 14:43:23,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97412 transitions. [2022-03-15 14:43:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:23,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:23,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:23,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 14:43:23,960 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash -432630929, now seen corresponding path program 81 times [2022-03-15 14:43:23,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:23,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907287231] [2022-03-15 14:43:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:24,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:24,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907287231] [2022-03-15 14:43:24,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907287231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:24,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:24,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:24,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953130704] [2022-03-15 14:43:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:24,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:24,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:24,763 INFO L87 Difference]: Start difference. First operand 24268 states and 97412 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:26,481 INFO L93 Difference]: Finished difference Result 58495 states and 229977 transitions. [2022-03-15 14:43:26,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:26,481 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:26,704 INFO L225 Difference]: With dead ends: 58495 [2022-03-15 14:43:26,704 INFO L226 Difference]: Without dead ends: 57901 [2022-03-15 14:43:26,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:26,704 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 736 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:26,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 3043 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57901 states. [2022-03-15 14:43:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57901 to 24349. [2022-03-15 14:43:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24349 states, 24348 states have (on average 4.012896336454739) internal successors, (97706), 24348 states have internal predecessors, (97706), 0 states have call successors, (0), 0 states 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 14:43:27,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24349 states to 24349 states and 97706 transitions. [2022-03-15 14:43:27,828 INFO L78 Accepts]: Start accepts. Automaton has 24349 states and 97706 transitions. Word has length 117 [2022-03-15 14:43:27,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:27,828 INFO L470 AbstractCegarLoop]: Abstraction has 24349 states and 97706 transitions. [2022-03-15 14:43:27,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:27,829 INFO L276 IsEmpty]: Start isEmpty. Operand 24349 states and 97706 transitions. [2022-03-15 14:43:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:27,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:27,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:27,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 14:43:27,883 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:27,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:27,883 INFO L85 PathProgramCache]: Analyzing trace with hash 900236687, now seen corresponding path program 82 times [2022-03-15 14:43:27,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:27,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808254099] [2022-03-15 14:43:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:27,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:28,491 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 14:43:28,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:28,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808254099] [2022-03-15 14:43:28,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808254099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:28,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:28,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:28,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315907160] [2022-03-15 14:43:28,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:28,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:28,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:28,492 INFO L87 Difference]: Start difference. First operand 24349 states and 97706 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:30,120 INFO L93 Difference]: Finished difference Result 58483 states and 229902 transitions. [2022-03-15 14:43:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:30,121 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:30,323 INFO L225 Difference]: With dead ends: 58483 [2022-03-15 14:43:30,323 INFO L226 Difference]: Without dead ends: 57856 [2022-03-15 14:43:30,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:30,324 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 902 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:30,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 2687 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57856 states. [2022-03-15 14:43:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57856 to 24304. [2022-03-15 14:43:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014278072665926) internal successors, (97559), 24303 states have internal predecessors, (97559), 0 states have call successors, (0), 0 states 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 14:43:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97559 transitions. [2022-03-15 14:43:31,396 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97559 transitions. Word has length 117 [2022-03-15 14:43:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:31,397 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97559 transitions. [2022-03-15 14:43:31,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97559 transitions. [2022-03-15 14:43:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:31,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:31,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:31,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 14:43:31,444 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1051333159, now seen corresponding path program 83 times [2022-03-15 14:43:31,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:31,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886381537] [2022-03-15 14:43:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:31,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:31,978 INFO 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 14:43:31,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:31,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886381537] [2022-03-15 14:43:31,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886381537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:31,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:31,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:31,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515419563] [2022-03-15 14:43:31,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:31,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:31,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:31,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:31,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:31,980 INFO L87 Difference]: Start difference. First operand 24304 states and 97559 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:33,610 INFO L93 Difference]: Finished difference Result 59044 states and 231774 transitions. [2022-03-15 14:43:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:33,611 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:33,995 INFO L225 Difference]: With dead ends: 59044 [2022-03-15 14:43:33,995 INFO L226 Difference]: Without dead ends: 58450 [2022-03-15 14:43:33,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:33,996 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 895 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:33,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 2705 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58450 states. [2022-03-15 14:43:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58450 to 24340. [2022-03-15 14:43:34,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.012901105222071) internal successors, (97670), 24339 states have internal predecessors, (97670), 0 states have call successors, (0), 0 states 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 14:43:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97670 transitions. [2022-03-15 14:43:34,941 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97670 transitions. Word has length 117 [2022-03-15 14:43:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:34,941 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97670 transitions. [2022-03-15 14:43:34,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97670 transitions. [2022-03-15 14:43:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:34,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:34,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:34,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 14:43:34,993 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:34,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:34,994 INFO L85 PathProgramCache]: Analyzing trace with hash 8677935, now seen corresponding path program 84 times [2022-03-15 14:43:34,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:34,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812144691] [2022-03-15 14:43:34,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:34,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:35,783 INFO 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 14:43:35,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:35,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812144691] [2022-03-15 14:43:35,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812144691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:35,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:35,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:35,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820474712] [2022-03-15 14:43:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:35,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:35,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:35,784 INFO L87 Difference]: Start difference. First operand 24340 states and 97670 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:37,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:37,589 INFO L93 Difference]: Finished difference Result 58555 states and 230181 transitions. [2022-03-15 14:43:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:37,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:37,809 INFO L225 Difference]: With dead ends: 58555 [2022-03-15 14:43:37,809 INFO L226 Difference]: Without dead ends: 57964 [2022-03-15 14:43:37,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:37,809 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 823 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:37,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 2680 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57964 states. [2022-03-15 14:43:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57964 to 24304. [2022-03-15 14:43:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.013784306464222) internal successors, (97547), 24303 states have internal predecessors, (97547), 0 states have call successors, (0), 0 states 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 14:43:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97547 transitions. [2022-03-15 14:43:38,779 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97547 transitions. Word has length 117 [2022-03-15 14:43:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:38,779 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97547 transitions. [2022-03-15 14:43:38,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97547 transitions. [2022-03-15 14:43:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:38,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:38,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:38,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 14:43:38,830 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:38,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:38,830 INFO L85 PathProgramCache]: Analyzing trace with hash -599157767, now seen corresponding path program 85 times [2022-03-15 14:43:38,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:38,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345709628] [2022-03-15 14:43:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:39,617 INFO 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 14:43:39,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:39,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345709628] [2022-03-15 14:43:39,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345709628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:39,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:39,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:39,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880654018] [2022-03-15 14:43:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:39,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:39,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:39,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:39,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:39,619 INFO L87 Difference]: Start difference. First operand 24304 states and 97547 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:41,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:41,304 INFO L93 Difference]: Finished difference Result 59032 states and 231732 transitions. [2022-03-15 14:43:41,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:41,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:41,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:41,530 INFO L225 Difference]: With dead ends: 59032 [2022-03-15 14:43:41,531 INFO L226 Difference]: Without dead ends: 58450 [2022-03-15 14:43:41,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:41,531 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 873 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:41,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 2812 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58450 states. [2022-03-15 14:43:42,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58450 to 24340. [2022-03-15 14:43:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.012408069353712) internal successors, (97658), 24339 states have internal predecessors, (97658), 0 states have call successors, (0), 0 states 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 14:43:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97658 transitions. [2022-03-15 14:43:42,503 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97658 transitions. Word has length 117 [2022-03-15 14:43:42,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:42,503 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97658 transitions. [2022-03-15 14:43:42,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97658 transitions. [2022-03-15 14:43:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:42,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:42,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:42,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 14:43:42,740 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:42,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2013283407, now seen corresponding path program 86 times [2022-03-15 14:43:42,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:42,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425893744] [2022-03-15 14:43:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:43,404 INFO 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 14:43:43,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:43,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425893744] [2022-03-15 14:43:43,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425893744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:43,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:43,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:43,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718798788] [2022-03-15 14:43:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:43,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:43,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:43,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:43,406 INFO L87 Difference]: Start difference. First operand 24340 states and 97658 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:45,068 INFO L93 Difference]: Finished difference Result 58555 states and 230169 transitions. [2022-03-15 14:43:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:45,069 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:45,274 INFO L225 Difference]: With dead ends: 58555 [2022-03-15 14:43:45,274 INFO L226 Difference]: Without dead ends: 57952 [2022-03-15 14:43:45,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:45,280 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 718 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:45,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 2767 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:43:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57952 states. [2022-03-15 14:43:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57952 to 24292. [2022-03-15 14:43:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.014079288625417) internal successors, (97506), 24291 states have internal predecessors, (97506), 0 states have call successors, (0), 0 states 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 14:43:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97506 transitions. [2022-03-15 14:43:46,346 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97506 transitions. Word has length 117 [2022-03-15 14:43:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:46,346 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97506 transitions. [2022-03-15 14:43:46,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97506 transitions. [2022-03-15 14:43:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:46,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:46,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:46,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 14:43:46,393 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:46,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash 886413671, now seen corresponding path program 87 times [2022-03-15 14:43:46,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:46,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162017451] [2022-03-15 14:43:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:46,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:46,998 INFO 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 14:43:46,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:46,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162017451] [2022-03-15 14:43:46,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162017451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:46,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:46,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:46,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231323202] [2022-03-15 14:43:46,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:46,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:46,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:46,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:46,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:46,999 INFO L87 Difference]: Start difference. First operand 24292 states and 97506 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:48,573 INFO L93 Difference]: Finished difference Result 57670 states and 227128 transitions. [2022-03-15 14:43:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:48,927 INFO L225 Difference]: With dead ends: 57670 [2022-03-15 14:43:48,927 INFO L226 Difference]: Without dead ends: 57076 [2022-03-15 14:43:48,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:48,927 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 732 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:48,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 2694 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:49,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57076 states. [2022-03-15 14:43:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57076 to 24400. [2022-03-15 14:43:49,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24400 states, 24399 states have (on average 4.012910365178901) internal successors, (97911), 24399 states have internal predecessors, (97911), 0 states have call successors, (0), 0 states 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 14:43:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 97911 transitions. [2022-03-15 14:43:49,865 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 97911 transitions. Word has length 117 [2022-03-15 14:43:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:49,865 INFO L470 AbstractCegarLoop]: Abstraction has 24400 states and 97911 transitions. [2022-03-15 14:43:49,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 97911 transitions. [2022-03-15 14:43:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:49,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:49,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:49,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 14:43:49,916 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:49,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1946424765, now seen corresponding path program 88 times [2022-03-15 14:43:49,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:49,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888707529] [2022-03-15 14:43:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:50,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:50,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888707529] [2022-03-15 14:43:50,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888707529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:50,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:50,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:50,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508162625] [2022-03-15 14:43:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:50,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:50,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:50,539 INFO L87 Difference]: Start difference. First operand 24400 states and 97911 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:52,183 INFO L93 Difference]: Finished difference Result 57631 states and 226972 transitions. [2022-03-15 14:43:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:52,183 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:52,562 INFO L225 Difference]: With dead ends: 57631 [2022-03-15 14:43:52,562 INFO L226 Difference]: Without dead ends: 57040 [2022-03-15 14:43:52,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:52,562 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 793 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:52,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 2656 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:43:52,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57040 states. [2022-03-15 14:43:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57040 to 24364. [2022-03-15 14:43:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.012806304642285) internal successors, (97764), 24363 states have internal predecessors, (97764), 0 states have call successors, (0), 0 states 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 14:43:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97764 transitions. [2022-03-15 14:43:53,541 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97764 transitions. Word has length 117 [2022-03-15 14:43:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:53,541 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97764 transitions. [2022-03-15 14:43:53,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:53,541 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97764 transitions. [2022-03-15 14:43:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:53,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:53,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:53,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 14:43:53,596 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:53,596 INFO L85 PathProgramCache]: Analyzing trace with hash -558523761, now seen corresponding path program 89 times [2022-03-15 14:43:53,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:53,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771248657] [2022-03-15 14:43:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:53,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:54,379 INFO 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 14:43:54,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:54,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771248657] [2022-03-15 14:43:54,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771248657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:54,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:54,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-15 14:43:54,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449232934] [2022-03-15 14:43:54,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:54,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:43:54,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:54,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:43:54,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:54,381 INFO L87 Difference]: Start difference. First operand 24364 states and 97764 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:56,131 INFO L93 Difference]: Finished difference Result 57253 states and 225793 transitions. [2022-03-15 14:43:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:43:56,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-15 14:43:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:56,348 INFO L225 Difference]: With dead ends: 57253 [2022-03-15 14:43:56,349 INFO L226 Difference]: Without dead ends: 56410 [2022-03-15 14:43:56,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:43:56,350 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 608 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:56,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [608 Valid, 2880 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:43:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56410 states. [2022-03-15 14:43:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56410 to 24292. [2022-03-15 14:43:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.013091268371001) internal successors, (97482), 24291 states have internal predecessors, (97482), 0 states have call successors, (0), 0 states 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 14:43:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97482 transitions. [2022-03-15 14:43:57,288 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97482 transitions. Word has length 117 [2022-03-15 14:43:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:57,288 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97482 transitions. [2022-03-15 14:43:57,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 14:43:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97482 transitions. [2022-03-15 14:43:57,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-15 14:43:57,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:57,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:57,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 14:43:57,338 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:57,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash -943150745, now seen corresponding path program 90 times [2022-03-15 14:43:57,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:57,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528476907] [2022-03-15 14:43:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat