/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/04-mutex_06-ps_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 22:45:57,286 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-16 22:45:57,357 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 22:45:57,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 22:45:57,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 22:45:57,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 22:45:57,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 22:45:57,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 22:45:57,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 22:45:57,383 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 22:45:57,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 22:45:57,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 22:45:57,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 22:45:57,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 22:45:57,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 22:45:57,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 22:45:57,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:57,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 22:45:57,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 22:45:57,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 22:45:57,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 22:45:57,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 22:45:57,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 22:45:57,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 22:45:57,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 22:45:57,613 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 22:45:57,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2021-10-16 22:45:57,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b319c890b/5132e03c1b304e41b82f013abb663b68/FLAGa0587a040 [2021-10-16 22:45:58,104 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 22:45:58,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2021-10-16 22:45:58,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b319c890b/5132e03c1b304e41b82f013abb663b68/FLAGa0587a040 [2021-10-16 22:45:58,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b319c890b/5132e03c1b304e41b82f013abb663b68 [2021-10-16 22:45:58,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 22:45:58,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 22:45:58,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:58,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 22:45:58,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 22:45:58,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ed7e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58, skipping insertion in model container [2021-10-16 22:45:58,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 22:45:58,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 22:45:58,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:58,512 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 22:45:58,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:58,594 INFO L208 MainTranslator]: Completed translation [2021-10-16 22:45:58,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58 WrapperNode [2021-10-16 22:45:58,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:58,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:58,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 22:45:58,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 22:45:58,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:58,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 22:45:58,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 22:45:58,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 22:45:58,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 22:45:58,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 22:45:58,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 22:45:58,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 22:45:58,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (1/1) ... [2021-10-16 22:45:58,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:58,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:45:58,692 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 22:45:58,711 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 22:45:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 22:45:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 22:45:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 22:45:58,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 22:45:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 22:45:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 22:45:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 22:45:58,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 22:45:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 22:45:58,723 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 22:45:58,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 22:45:58,990 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 22:45:58,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:58 BoogieIcfgContainer [2021-10-16 22:45:58,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 22:45:58,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 22:45:58,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 22:45:58,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 22:45:58,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:45:58" (1/3) ... [2021-10-16 22:45:58,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ee4cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:58, skipping insertion in model container [2021-10-16 22:45:58,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:58" (2/3) ... [2021-10-16 22:45:58,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ee4cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:58, skipping insertion in model container [2021-10-16 22:45:58,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:58" (3/3) ... [2021-10-16 22:45:58,998 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2021-10-16 22:45:59,001 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 22:45:59,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 22:45:59,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 22:45:59,002 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 22:45:59,021 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,021 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,022 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,030 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,030 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,031 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,031 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,035 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,036 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:59,041 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 22:45:59,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 22:45:59,080 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 22:45:59,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 22:45:59,091 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 77 transitions, 159 flow [2021-10-16 22:45:59,129 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 449 states, 446 states have (on average 1.9349775784753362) internal successors, (863), 448 states have internal predecessors, (863), 0 states have call successors, (0), 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 22:45:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 449 states, 446 states have (on average 1.9349775784753362) internal successors, (863), 448 states have internal predecessors, (863), 0 states have call successors, (0), 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 22:45:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 22:45:59,138 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:59,138 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] [2021-10-16 22:45:59,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 22:45:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:59,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1640365576, now seen corresponding path program 1 times [2021-10-16 22:45:59,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:59,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735689693] [2021-10-16 22:45:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:59,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:59,372 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 22:45:59,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:59,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735689693] [2021-10-16 22:45:59,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735689693] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:59,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:59,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:59,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877774175] [2021-10-16 22:45:59,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:59,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:59,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:59,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,391 INFO L87 Difference]: Start difference. First operand has 449 states, 446 states have (on average 1.9349775784753362) internal successors, (863), 448 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:45:59,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:59,446 INFO L93 Difference]: Finished difference Result 475 states and 898 transitions. [2021-10-16 22:45:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:59,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-16 22:45:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:59,464 INFO L225 Difference]: With dead ends: 475 [2021-10-16 22:45:59,464 INFO L226 Difference]: Without dead ends: 355 [2021-10-16 22:45:59,466 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-10-16 22:45:59,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 337. [2021-10-16 22:45:59,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 334 states have (on average 1.847305389221557) internal successors, (617), 336 states have internal predecessors, (617), 0 states have call successors, (0), 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 22:45:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 617 transitions. [2021-10-16 22:45:59,510 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 617 transitions. Word has length 39 [2021-10-16 22:45:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:59,510 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 617 transitions. [2021-10-16 22:45:59,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:45:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 617 transitions. [2021-10-16 22:45:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-16 22:45:59,512 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:59,512 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] [2021-10-16 22:45:59,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 22:45:59,512 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 22:45:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:59,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1397843337, now seen corresponding path program 1 times [2021-10-16 22:45:59,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:59,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073010700] [2021-10-16 22:45:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:59,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:59,566 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 22:45:59,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:59,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073010700] [2021-10-16 22:45:59,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073010700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:59,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:59,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 22:45:59,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597115839] [2021-10-16 22:45:59,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:59,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:59,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:59,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,569 INFO L87 Difference]: Start difference. First operand 337 states and 617 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 22:45:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:59,582 INFO L93 Difference]: Finished difference Result 383 states and 682 transitions. [2021-10-16 22:45:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:59,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-16 22:45:59,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:59,584 INFO L225 Difference]: With dead ends: 383 [2021-10-16 22:45:59,584 INFO L226 Difference]: Without dead ends: 349 [2021-10-16 22:45:59,584 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-10-16 22:45:59,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2021-10-16 22:45:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 334 states have (on average 1.7964071856287425) internal successors, (600), 336 states have internal predecessors, (600), 0 states have call successors, (0), 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 22:45:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 600 transitions. [2021-10-16 22:45:59,593 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 600 transitions. Word has length 42 [2021-10-16 22:45:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:59,594 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 600 transitions. [2021-10-16 22:45:59,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 22:45:59,594 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 600 transitions. [2021-10-16 22:45:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-16 22:45:59,595 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:59,595 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, 1] [2021-10-16 22:45:59,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 22:45:59,595 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 22:45:59,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:59,596 INFO L82 PathProgramCache]: Analyzing trace with hash 992550342, now seen corresponding path program 1 times [2021-10-16 22:45:59,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:59,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398311280] [2021-10-16 22:45:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:59,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:59,654 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 22:45:59,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:59,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398311280] [2021-10-16 22:45:59,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398311280] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:59,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:59,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:59,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381520415] [2021-10-16 22:45:59,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:59,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:59,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:59,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,656 INFO L87 Difference]: Start difference. First operand 337 states and 600 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 22:45:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:59,677 INFO L93 Difference]: Finished difference Result 341 states and 596 transitions. [2021-10-16 22:45:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-16 22:45:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:59,678 INFO L225 Difference]: With dead ends: 341 [2021-10-16 22:45:59,678 INFO L226 Difference]: Without dead ends: 236 [2021-10-16 22:45:59,679 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-16 22:45:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-10-16 22:45:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.6623931623931625) internal successors, (389), 235 states have internal predecessors, (389), 0 states have call successors, (0), 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 22:45:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 389 transitions. [2021-10-16 22:45:59,689 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 389 transitions. Word has length 44 [2021-10-16 22:45:59,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:59,690 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 389 transitions. [2021-10-16 22:45:59,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 22:45:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 389 transitions. [2021-10-16 22:45:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-16 22:45:59,695 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:59,696 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, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:59,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 22:45:59,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 22:45:59,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:59,697 INFO L82 PathProgramCache]: Analyzing trace with hash -502891923, now seen corresponding path program 1 times [2021-10-16 22:45:59,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:59,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277437095] [2021-10-16 22:45:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:59,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:59,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 22:45:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:59,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 22:45:59,756 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 22:45:59,757 WARN L672 BasicCegarLoop]: Found data race on ~glob~0 between C: glob++ [939] and C: glob++ [926] [2021-10-16 22:45:59,757 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:59,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:59,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 22:45:59,759 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:59,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 22:45:59,763 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 22:45:59,764 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 22:45:59,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:45:59 BasicIcfg [2021-10-16 22:45:59,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 22:45:59,804 INFO L168 Benchmark]: Toolchain (without parser) took 1671.64 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 133.8 MB in the beginning and 168.5 MB in the end (delta: -34.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:59,805 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 187.7 MB. Free memory is still 152.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 22:45:59,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.42 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 133.6 MB in the beginning and 182.8 MB in the end (delta: -49.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:59,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 225.4 MB. Free memory was 182.8 MB in the beginning and 180.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:59,806 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 ms. Allocated memory is still 225.4 MB. Free memory was 180.7 MB in the beginning and 179.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:59,806 INFO L168 Benchmark]: RCFGBuilder took 329.46 ms. Allocated memory is still 225.4 MB. Free memory was 179.4 MB in the beginning and 167.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:59,806 INFO L168 Benchmark]: TraceAbstraction took 809.96 ms. Allocated memory is still 225.4 MB. Free memory was 166.8 MB in the beginning and 168.5 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 22:45:59,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 187.7 MB. Free memory is still 152.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 460.42 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 133.6 MB in the beginning and 182.8 MB in the end (delta: -49.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.11 ms. Allocated memory is still 225.4 MB. Free memory was 182.8 MB in the beginning and 180.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.56 ms. Allocated memory is still 225.4 MB. Free memory was 180.7 MB in the beginning and 179.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 329.46 ms. Allocated memory is still 225.4 MB. Free memory was 179.4 MB in the beginning and 167.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 809.96 ms. Allocated memory is still 225.4 MB. Free memory was 166.8 MB in the beginning and 168.5 MB in the end (delta: -1.8 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: 926]: the program contains a data race the program contains a data race We found a FailurePath: [L921] 0 int glob; VAL [glob=0] [L922] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={7:0}] [L923] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={7:0}, n={9:0}] [L931] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, m={7:0}, n={9:0}] [L932] 0 pthread_t id; VAL [glob=0, m={7:0}, n={9:0}] [L933] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, m={7:0}, n={9:0}] [L926] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=27, glob++=25, m={7:0}, n={9:0}] [L935] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=27, glob++=25, m={7:0}, n={9:0}] [L938] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=27, glob++=25, m={7:0}, n={9:0}] [L926] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=27, glob++=25, m={7:0}, n={9:0}] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: 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, 94 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 687.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 16.4ms, AutomataDifference: 125.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 48.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 283 SDtfs, 71 SDslu, 194 SDs, 0 SdLazy, 33 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.4ms SsaConstructionTime, 88.8ms SatisfiabilityAnalysisTime, 177.0ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 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 22:45:59,858 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...