/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/ldv-races/race-1_3b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:30:24,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:30:24,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:30:24,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:30:24,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:30:24,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:30:24,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:30:24,989 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 [2021-10-13 22:30:25,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:30:25,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:30:25,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:30:25,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:30:25,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:30:25,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:30:25,011 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:30:25,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:30:25,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:30:25,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:30:25,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:30:25,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:25,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:30:25,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:30:25,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:30:25,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:30:25,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:30:25,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:30:25,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:30:25,251 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:30:25,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2021-10-13 22:30:25,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0879d050/0ae2de0436184d58bc3227ad649c40ef/FLAGcd2499186 [2021-10-13 22:30:25,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:30:25,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i [2021-10-13 22:30:25,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0879d050/0ae2de0436184d58bc3227ad649c40ef/FLAGcd2499186 [2021-10-13 22:30:25,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0879d050/0ae2de0436184d58bc3227ad649c40ef [2021-10-13 22:30:25,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:30:25,833 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:30:25,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:25,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:30:25,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:30:25,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56848839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25, skipping insertion in model container [2021-10-13 22:30:25,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:30:25,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:30:26,500 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2021-10-13 22:30:26,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:26,543 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:30:26,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3b-join.i[76069,76082] [2021-10-13 22:30:26,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:26,717 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:30:26,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26 WrapperNode [2021-10-13 22:30:26,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:26,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:26,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:30:26,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:30:26,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:26,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:30:26,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:30:26,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:30:26,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:30:26,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:30:26,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:30:26,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:30:26,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:26,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:30:26,891 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) [2021-10-13 22:30:26,894 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 [2021-10-13 22:30:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:30:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:30:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-13 22:30:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 22:30:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:30:26,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:30:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:30:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 22:30:26,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 22:30:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:30:26,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:30:26,931 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:30:27,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:30:27,357 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 22:30:27,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:27 BoogieIcfgContainer [2021-10-13 22:30:27,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:30:27,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:30:27,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:30:27,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:30:27,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:30:25" (1/3) ... [2021-10-13 22:30:27,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a35c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:27, skipping insertion in model container [2021-10-13 22:30:27,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (2/3) ... [2021-10-13 22:30:27,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a35c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:27, skipping insertion in model container [2021-10-13 22:30:27,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:27" (3/3) ... [2021-10-13 22:30:27,367 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2021-10-13 22:30:27,372 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:30:27,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:30:27,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 22:30:27,373 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:30:27,398 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,398 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,399 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,405 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:27,418 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-13 22:30:27,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:30:27,464 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 22:30:27,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-13 22:30:27,474 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 96 transitions, 200 flow [2021-10-13 22:30:27,500 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 264 states, 257 states have (on average 1.6926070038910506) internal successors, (435), 263 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 264 states, 257 states have (on average 1.6926070038910506) internal successors, (435), 263 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 22:30:27,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:27,511 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:27,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:27,515 INFO L82 PathProgramCache]: Analyzing trace with hash 580692302, now seen corresponding path program 1 times [2021-10-13 22:30:27,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:27,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919490965] [2021-10-13 22:30:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:27,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:27,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:27,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919490965] [2021-10-13 22:30:27,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919490965] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:27,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:27,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:27,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221326277] [2021-10-13 22:30:27,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:27,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:27,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:27,918 INFO L87 Difference]: Start difference. First operand has 264 states, 257 states have (on average 1.6926070038910506) internal successors, (435), 263 states have internal predecessors, (435), 0 states have call successors, (0), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,030 INFO L93 Difference]: Finished difference Result 251 states and 404 transitions. [2021-10-13 22:30:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 22:30:28,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 22:30:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,046 INFO L225 Difference]: With dead ends: 251 [2021-10-13 22:30:28,047 INFO L226 Difference]: Without dead ends: 209 [2021-10-13 22:30:28,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:30:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-10-13 22:30:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-10-13 22:30:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 208 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 327 transitions. [2021-10-13 22:30:28,102 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 327 transitions. Word has length 27 [2021-10-13 22:30:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,103 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 327 transitions. [2021-10-13 22:30:28,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 327 transitions. [2021-10-13 22:30:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 22:30:28,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,104 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:30:28,105 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1037410534, now seen corresponding path program 1 times [2021-10-13 22:30:28,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431222151] [2021-10-13 22:30:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:28,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:28,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431222151] [2021-10-13 22:30:28,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431222151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:28,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:28,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:28,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726885477] [2021-10-13 22:30:28,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:28,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:28,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:28,237 INFO L87 Difference]: Start difference. First operand 209 states and 327 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,304 INFO L93 Difference]: Finished difference Result 207 states and 325 transitions. [2021-10-13 22:30:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 22:30:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 22:30:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,308 INFO L225 Difference]: With dead ends: 207 [2021-10-13 22:30:28,309 INFO L226 Difference]: Without dead ends: 207 [2021-10-13 22:30:28,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 22:30:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-13 22:30:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-10-13 22:30:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.5931372549019607) internal successors, (325), 206 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2021-10-13 22:30:28,327 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 35 [2021-10-13 22:30:28,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,327 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2021-10-13 22:30:28,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2021-10-13 22:30:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-13 22:30:28,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,329 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:30:28,330 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:28,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,330 INFO L82 PathProgramCache]: Analyzing trace with hash 205683124, now seen corresponding path program 1 times [2021-10-13 22:30:28,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268470871] [2021-10-13 22:30:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:28,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:28,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268470871] [2021-10-13 22:30:28,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268470871] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:28,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:28,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:30:28,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732478628] [2021-10-13 22:30:28,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 22:30:28,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:28,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 22:30:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 22:30:28,434 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,453 INFO L93 Difference]: Finished difference Result 197 states and 315 transitions. [2021-10-13 22:30:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 22:30:28,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-13 22:30:28,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,455 INFO L225 Difference]: With dead ends: 197 [2021-10-13 22:30:28,455 INFO L226 Difference]: Without dead ends: 187 [2021-10-13 22:30:28,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-13 22:30:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-13 22:30:28,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.6486486486486487) internal successors, (305), 186 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 305 transitions. [2021-10-13 22:30:28,461 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 305 transitions. Word has length 47 [2021-10-13 22:30:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,461 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 305 transitions. [2021-10-13 22:30:28,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,462 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 305 transitions. [2021-10-13 22:30:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 22:30:28,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:30:28,469 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash 230400654, now seen corresponding path program 1 times [2021-10-13 22:30:28,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653626654] [2021-10-13 22:30:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:28,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:28,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653626654] [2021-10-13 22:30:28,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653626654] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:28,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:28,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:28,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449707124] [2021-10-13 22:30:28,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:28,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:28,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:28,585 INFO L87 Difference]: Start difference. First operand 187 states and 305 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,643 INFO L93 Difference]: Finished difference Result 232 states and 369 transitions. [2021-10-13 22:30:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 22:30:28,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-13 22:30:28,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,645 INFO L225 Difference]: With dead ends: 232 [2021-10-13 22:30:28,645 INFO L226 Difference]: Without dead ends: 232 [2021-10-13 22:30:28,646 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 22:30:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-13 22:30:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 195. [2021-10-13 22:30:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.6424870466321244) internal successors, (317), 194 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 317 transitions. [2021-10-13 22:30:28,668 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 317 transitions. Word has length 48 [2021-10-13 22:30:28,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,669 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 317 transitions. [2021-10-13 22:30:28,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,670 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 317 transitions. [2021-10-13 22:30:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 22:30:28,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,671 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:30:28,672 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,672 INFO L82 PathProgramCache]: Analyzing trace with hash 80737584, now seen corresponding path program 1 times [2021-10-13 22:30:28,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100883440] [2021-10-13 22:30:28,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:30:28,722 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 22:30:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:30:28,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 22:30:28,780 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 22:30:28,781 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:28,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:28,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:28,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:28,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:30:28,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:30:28,789 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:30:28,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:30:28,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:30:28 BasicIcfg [2021-10-13 22:30:28,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:30:28,834 INFO L168 Benchmark]: Toolchain (without parser) took 3000.55 ms. Allocated memory was 187.7 MB in the beginning and 263.2 MB in the end (delta: 75.5 MB). Free memory was 127.6 MB in the beginning and 192.9 MB in the end (delta: -65.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:28,834 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 187.7 MB. Free memory was 147.2 MB in the beginning and 147.0 MB in the end (delta: 132.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:30:28,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.86 ms. Allocated memory was 187.7 MB in the beginning and 263.2 MB in the end (delta: 75.5 MB). Free memory was 127.4 MB in the beginning and 188.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:28,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.39 ms. Allocated memory is still 263.2 MB. Free memory was 188.7 MB in the beginning and 185.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:28,836 INFO L168 Benchmark]: Boogie Preprocessor took 57.46 ms. Allocated memory is still 263.2 MB. Free memory was 185.0 MB in the beginning and 183.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:28,836 INFO L168 Benchmark]: RCFGBuilder took 502.45 ms. Allocated memory is still 263.2 MB. Free memory was 183.0 MB in the beginning and 165.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:28,836 INFO L168 Benchmark]: TraceAbstraction took 1471.75 ms. Allocated memory is still 263.2 MB. Free memory was 165.1 MB in the beginning and 192.9 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:30:28,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 187.7 MB. Free memory was 147.2 MB in the beginning and 147.0 MB in the end (delta: 132.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 881.86 ms. Allocated memory was 187.7 MB in the beginning and 263.2 MB in the end (delta: 75.5 MB). Free memory was 127.4 MB in the beginning and 188.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 79.39 ms. Allocated memory is still 263.2 MB. Free memory was 188.7 MB in the beginning and 185.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.46 ms. Allocated memory is still 263.2 MB. Free memory was 185.0 MB in the beginning and 183.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 502.45 ms. Allocated memory is still 263.2 MB. Free memory was 183.0 MB in the beginning and 165.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1471.75 ms. Allocated memory is still 263.2 MB. Free memory was 165.1 MB in the beginning and 192.9 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1693]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1694] 0 pthread_t t1; VAL [t1={7:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={9:0}, t1={7:0}] [L1696] 0 int pdev; VAL [mutex={9:0}, pdev=0, t1={7:0}] [L1705] 0 pdev = 1 VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1693] COND FALSE 0 !(!expression) VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1709] 0 return 0; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1726] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1717] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1718] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=4, t1={7:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1693] COND TRUE 0 !expression VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1693] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1328.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 19.4ms, AutomataDifference: 309.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 36.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 310 SDtfs, 312 SDslu, 618 SDs, 0 SdLazy, 95 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 110.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 86.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 37 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.1ms SsaConstructionTime, 131.7ms SatisfiabilityAnalysisTime, 378.9ms InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 22:30:28,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...