/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 --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 22:45:51,692 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-16 22:45:51,803 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 [2021-10-16 22:45:51,840 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 22:45:51,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 22:45:51,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 22:45:51,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 22:45:51,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 22:45:51,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 22:45:51,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 22:45:51,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:51,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 22:45:51,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 22:45:51,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 22:45:51,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 22:45:51,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 22:45:51,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 22:45:51,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 22:45:51,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 22:45:52,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 22:45:52,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 22:45:52,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 22:45:52,065 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 22:45:52,067 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 22:45:52,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2021-10-16 22:45:52,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20287f032/4cfe1e6623584b6b814c6f2b012d9f02/FLAGc57beabf9 [2021-10-16 22:45:52,553 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 22:45:52,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2021-10-16 22:45:52,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20287f032/4cfe1e6623584b6b814c6f2b012d9f02/FLAGc57beabf9 [2021-10-16 22:45:52,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20287f032/4cfe1e6623584b6b814c6f2b012d9f02 [2021-10-16 22:45:52,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 22:45:52,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 22:45:52,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:52,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 22:45:52,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 22:45:52,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:52" (1/1) ... [2021-10-16 22:45:52,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a9a580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:52, skipping insertion in model container [2021-10-16 22:45:52,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:52" (1/1) ... [2021-10-16 22:45:52,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 22:45:52,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 22:45:53,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:53,254 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 22:45:53,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:53,351 INFO L208 MainTranslator]: Completed translation [2021-10-16 22:45:53,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53 WrapperNode [2021-10-16 22:45:53,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:53,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:53,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 22:45:53,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 22:45:53,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:53,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 22:45:53,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 22:45:53,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 22:45:53,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 22:45:53,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 22:45:53,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 22:45:53,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 22:45:53,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (1/1) ... [2021-10-16 22:45:53,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:45:53,461 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) [2021-10-16 22:45:53,480 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 [2021-10-16 22:45:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 22:45:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 22:45:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 22:45:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 22:45:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 22:45:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 22:45:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 22:45:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 22:45:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 22:45:53,498 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 22:45:53,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 22:45:53,745 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 22:45:53,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:53 BoogieIcfgContainer [2021-10-16 22:45:53,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 22:45:53,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 22:45:53,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 22:45:53,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 22:45:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:45:52" (1/3) ... [2021-10-16 22:45:53,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab0ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:53, skipping insertion in model container [2021-10-16 22:45:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:53" (2/3) ... [2021-10-16 22:45:53,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aab0ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:53, skipping insertion in model container [2021-10-16 22:45:53,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:53" (3/3) ... [2021-10-16 22:45:53,756 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2021-10-16 22:45:53,760 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 22:45:53,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 22:45:53,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 22:45:53,760 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,783 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,783 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,784 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,784 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,784 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,784 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,784 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,785 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,786 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,786 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,786 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,787 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,788 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,788 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,788 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,789 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,795 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,795 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,795 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,795 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,795 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,796 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,796 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,796 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:53,800 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 22:45:53,840 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 22:45:53,845 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 [2021-10-16 22:45:53,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-16 22:45:53,854 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 75 transitions, 155 flow [2021-10-16 22:45:53,897 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 568 states, 563 states have (on average 1.9502664298401422) internal successors, (1098), 567 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 568 states, 563 states have (on average 1.9502664298401422) internal successors, (1098), 567 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-16 22:45:53,906 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:53,907 INFO L517 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:53,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 22:45:53,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:53,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1640949422, now seen corresponding path program 1 times [2021-10-16 22:45:53,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:53,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270999753] [2021-10-16 22:45:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:53,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:45:54,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:54,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270999753] [2021-10-16 22:45:54,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270999753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:54,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:54,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:54,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555119942] [2021-10-16 22:45:54,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 22:45:54,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 22:45:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 22:45:54,091 INFO L87 Difference]: Start difference. First operand has 568 states, 563 states have (on average 1.9502664298401422) internal successors, (1098), 567 states have internal predecessors, (1098), 0 states have call successors, (0), 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 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:54,111 INFO L93 Difference]: Finished difference Result 401 states and 740 transitions. [2021-10-16 22:45:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 22:45:54,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-16 22:45:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:54,121 INFO L225 Difference]: With dead ends: 401 [2021-10-16 22:45:54,121 INFO L226 Difference]: Without dead ends: 366 [2021-10-16 22:45:54,122 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 22:45:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-16 22:45:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-10-16 22:45:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 363 states have (on average 1.8457300275482094) internal successors, (670), 365 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 670 transitions. [2021-10-16 22:45:54,181 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 670 transitions. Word has length 30 [2021-10-16 22:45:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:54,181 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 670 transitions. [2021-10-16 22:45:54,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 670 transitions. [2021-10-16 22:45:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 22:45:54,183 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:54,184 INFO L517 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:54,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 22:45:54,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 22:45:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash -897147381, now seen corresponding path program 1 times [2021-10-16 22:45:54,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:54,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018585363] [2021-10-16 22:45:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:54,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:45:54,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:54,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018585363] [2021-10-16 22:45:54,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018585363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:54,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:54,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:54,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450221605] [2021-10-16 22:45:54,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:54,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:54,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:54,234 INFO L87 Difference]: Start difference. First operand 366 states and 670 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:54,276 INFO L93 Difference]: Finished difference Result 385 states and 699 transitions. [2021-10-16 22:45:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:54,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 22:45:54,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:54,279 INFO L225 Difference]: With dead ends: 385 [2021-10-16 22:45:54,279 INFO L226 Difference]: Without dead ends: 335 [2021-10-16 22:45:54,279 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-10-16 22:45:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 317. [2021-10-16 22:45:54,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 314 states have (on average 1.8184713375796178) internal successors, (571), 316 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 571 transitions. [2021-10-16 22:45:54,290 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 571 transitions. Word has length 33 [2021-10-16 22:45:54,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:54,291 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 571 transitions. [2021-10-16 22:45:54,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 571 transitions. [2021-10-16 22:45:54,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-16 22:45:54,292 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:54,292 INFO L517 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:54,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 22:45:54,293 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 22:45:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:54,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2084890508, now seen corresponding path program 1 times [2021-10-16 22:45:54,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:54,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845799592] [2021-10-16 22:45:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:54,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:45:54,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:54,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845799592] [2021-10-16 22:45:54,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845799592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:54,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:54,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:54,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045592456] [2021-10-16 22:45:54,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:54,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:54,374 INFO L87 Difference]: Start difference. First operand 317 states and 571 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:54,408 INFO L93 Difference]: Finished difference Result 321 states and 567 transitions. [2021-10-16 22:45:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-16 22:45:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:54,410 INFO L225 Difference]: With dead ends: 321 [2021-10-16 22:45:54,410 INFO L226 Difference]: Without dead ends: 216 [2021-10-16 22:45:54,410 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:54,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-16 22:45:54,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-10-16 22:45:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 214 states have (on average 1.6822429906542056) internal successors, (360), 215 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 360 transitions. [2021-10-16 22:45:54,423 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 360 transitions. Word has length 38 [2021-10-16 22:45:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:54,423 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 360 transitions. [2021-10-16 22:45:54,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 22:45:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 360 transitions. [2021-10-16 22:45:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-16 22:45:54,424 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:54,425 INFO L517 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:54,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 22:45:54,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 22:45:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1807456271, now seen corresponding path program 1 times [2021-10-16 22:45:54,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:54,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541773522] [2021-10-16 22:45:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:54,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:54,444 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 22:45:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:54,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 22:45:54,479 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 22:45:54,480 WARN L672 BasicCegarLoop]: Found data race on ~glob~0 between C: glob++ [916] and C: glob++ [922] [2021-10-16 22:45:54,481 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:54,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:54,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:54,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 22:45:54,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:54,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 22:45:54,488 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 22:45:54,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 22:45:54,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:45:54 BasicIcfg [2021-10-16 22:45:54,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 22:45:54,548 INFO L168 Benchmark]: Toolchain (without parser) took 1635.22 ms. Allocated memory is still 220.2 MB. Free memory was 168.8 MB in the beginning and 103.7 MB in the end (delta: 65.1 MB). Peak memory consumption was 64.7 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,548 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 22:45:54,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.91 ms. Allocated memory is still 220.2 MB. Free memory was 168.5 MB in the beginning and 180.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.43 ms. Allocated memory is still 220.2 MB. Free memory was 180.7 MB in the beginning and 178.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,549 INFO L168 Benchmark]: Boogie Preprocessor took 29.01 ms. Allocated memory is still 220.2 MB. Free memory was 178.6 MB in the beginning and 177.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,550 INFO L168 Benchmark]: RCFGBuilder took 315.77 ms. Allocated memory is still 220.2 MB. Free memory was 177.1 MB in the beginning and 165.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,550 INFO L168 Benchmark]: TraceAbstraction took 798.54 ms. Allocated memory is still 220.2 MB. Free memory was 164.5 MB in the beginning and 103.7 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:54,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 220.2 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 438.91 ms. Allocated memory is still 220.2 MB. Free memory was 168.5 MB in the beginning and 180.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.43 ms. Allocated memory is still 220.2 MB. Free memory was 180.7 MB in the beginning and 178.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.01 ms. Allocated memory is still 220.2 MB. Free memory was 178.6 MB in the beginning and 177.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 315.77 ms. Allocated memory is still 220.2 MB. Free memory was 177.1 MB in the beginning and 165.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 798.54 ms. Allocated memory is still 220.2 MB. Free memory was 164.5 MB in the beginning and 103.7 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. 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: 922]: the program contains a data race the program contains a data race We found a FailurePath: [L911] 0 int glob; VAL [glob=0] [L912] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex={3:0}] [L913] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [bad={5:0}, glob=0, mutex={3:0}] [L927] 0 pthread_t id; VAL [bad={5:0}, glob=0, mutex={3:0}] [L928] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, bad={5:0}, glob=0, mutex={3:0}] [L929] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, bad={5:0}, glob=1, glob++=25, glob++=27, glob++=0, mutex={3:0}] [L922] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={5:0}, glob=1, glob++=25, glob++=27, glob++=0, mutex={3:0}] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 928]: 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, 93 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 647.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 11.9ms, AutomataDifference: 126.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 52.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 211 SDtfs, 39 SDslu, 96 SDs, 0 SdLazy, 28 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=568occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 72.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.1ms SsaConstructionTime, 67.4ms SatisfiabilityAnalysisTime, 153.1ms InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-10-16 22:45:54,590 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...