/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-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 11:54:34,371 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-14 11:54:34,455 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 [2021-10-14 11:54:34,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 11:54:34,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 11:54:34,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-14 11:54:34,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-14 11:54:34,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 11:54:34,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 11:54:34,478 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 11:54:34,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 11:54:34,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 11:54:34,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 11:54:34,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:54:34,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 11:54:34,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-14 11:54:34,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 11:54:34,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 11:54:34,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 11:54:34,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 11:54:34,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 11:54:34,721 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 11:54:34,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2021-10-14 11:54:34,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c0b1b5c/562d3e60d53b4a749eaeb9b9fc72f13b/FLAGc6e0eb1a4 [2021-10-14 11:54:35,234 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 11:54:35,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2021-10-14 11:54:35,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c0b1b5c/562d3e60d53b4a749eaeb9b9fc72f13b/FLAGc6e0eb1a4 [2021-10-14 11:54:35,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c0b1b5c/562d3e60d53b4a749eaeb9b9fc72f13b [2021-10-14 11:54:35,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 11:54:35,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 11:54:35,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 11:54:35,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 11:54:35,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 11:54:35,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff3cd0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35, skipping insertion in model container [2021-10-14 11:54:35,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 11:54:35,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 11:54:35,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:54:35,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 11:54:35,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:54:35,723 INFO L208 MainTranslator]: Completed translation [2021-10-14 11:54:35,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35 WrapperNode [2021-10-14 11:54:35,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 11:54:35,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 11:54:35,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 11:54:35,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 11:54:35,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 11:54:35,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 11:54:35,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 11:54:35,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 11:54:35,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 11:54:35,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 11:54:35,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 11:54:35,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 11:54:35,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (1/1) ... [2021-10-14 11:54:35,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:54:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 11:54:35,829 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) [2021-10-14 11:54:35,849 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 [2021-10-14 11:54:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 11:54:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 11:54:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 11:54:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-14 11:54:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 11:54:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 11:54:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-14 11:54:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 11:54:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 11:54:35,855 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-14 11:54:36,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 11:54:36,050 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-14 11:54:36,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:36 BoogieIcfgContainer [2021-10-14 11:54:36,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 11:54:36,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 11:54:36,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 11:54:36,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 11:54:36,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:54:35" (1/3) ... [2021-10-14 11:54:36,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9d9e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:36, skipping insertion in model container [2021-10-14 11:54:36,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:35" (2/3) ... [2021-10-14 11:54:36,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9d9e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:36, skipping insertion in model container [2021-10-14 11:54:36,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:36" (3/3) ... [2021-10-14 11:54:36,056 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2021-10-14 11:54:36,059 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-14 11:54:36,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 11:54:36,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-14 11:54:36,060 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 11:54:36,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:36,096 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-14 11:54:36,122 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 11:54:36,125 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 [2021-10-14 11:54:36,125 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-14 11:54:36,131 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 77 transitions, 159 flow [2021-10-14 11:54:36,152 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) [2021-10-14 11:54:36,155 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) [2021-10-14 11:54:36,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-14 11:54:36,160 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:36,161 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:54:36,161 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] === [2021-10-14 11:54:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:36,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1640365576, now seen corresponding path program 1 times [2021-10-14 11:54:36,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:36,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749644578] [2021-10-14 11:54:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:36,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:54:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:54:36,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:54:36,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749644578] [2021-10-14 11:54:36,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749644578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:54:36,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:54:36,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 11:54:36,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266164337] [2021-10-14 11:54:36,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 11:54:36,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:54:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 11:54:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:36,375 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) [2021-10-14 11:54:36,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:54:36,456 INFO L93 Difference]: Finished difference Result 475 states and 898 transitions. [2021-10-14 11:54:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 11:54:36,458 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 [2021-10-14 11:54:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:54:36,466 INFO L225 Difference]: With dead ends: 475 [2021-10-14 11:54:36,466 INFO L226 Difference]: Without dead ends: 355 [2021-10-14 11:54:36,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-10-14 11:54:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 337. [2021-10-14 11:54:36,505 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) [2021-10-14 11:54:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 617 transitions. [2021-10-14 11:54:36,507 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 617 transitions. Word has length 39 [2021-10-14 11:54:36,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:54:36,508 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 617 transitions. [2021-10-14 11:54:36,508 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) [2021-10-14 11:54:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 617 transitions. [2021-10-14 11:54:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-14 11:54:36,509 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:36,509 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:54:36,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 11:54:36,510 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] === [2021-10-14 11:54:36,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:36,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1397843337, now seen corresponding path program 1 times [2021-10-14 11:54:36,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:36,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870620147] [2021-10-14 11:54:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:36,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:54:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:54:36,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:54:36,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870620147] [2021-10-14 11:54:36,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870620147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:54:36,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:54:36,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-14 11:54:36,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213551805] [2021-10-14 11:54:36,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 11:54:36,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:54:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 11:54:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:36,553 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) [2021-10-14 11:54:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:54:36,563 INFO L93 Difference]: Finished difference Result 383 states and 682 transitions. [2021-10-14 11:54:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 11:54:36,563 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 [2021-10-14 11:54:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:54:36,565 INFO L225 Difference]: With dead ends: 383 [2021-10-14 11:54:36,566 INFO L226 Difference]: Without dead ends: 349 [2021-10-14 11:54:36,566 INFO L781 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 [2021-10-14 11:54:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-10-14 11:54:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2021-10-14 11:54:36,580 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) [2021-10-14 11:54:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 600 transitions. [2021-10-14 11:54:36,581 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 600 transitions. Word has length 42 [2021-10-14 11:54:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:54:36,581 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 600 transitions. [2021-10-14 11:54:36,581 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) [2021-10-14 11:54:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 600 transitions. [2021-10-14 11:54:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-14 11:54:36,583 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:36,583 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:54:36,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 11:54:36,583 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] === [2021-10-14 11:54:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:36,583 INFO L82 PathProgramCache]: Analyzing trace with hash 992550342, now seen corresponding path program 1 times [2021-10-14 11:54:36,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:36,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505846884] [2021-10-14 11:54:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:36,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:54:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 11:54:36,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:54:36,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505846884] [2021-10-14 11:54:36,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505846884] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:54:36,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:54:36,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 11:54:36,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7001008] [2021-10-14 11:54:36,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 11:54:36,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:54:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 11:54:36,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:36,638 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) [2021-10-14 11:54:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:54:36,653 INFO L93 Difference]: Finished difference Result 341 states and 596 transitions. [2021-10-14 11:54:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 11:54:36,653 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 [2021-10-14 11:54:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:54:36,655 INFO L225 Difference]: With dead ends: 341 [2021-10-14 11:54:36,655 INFO L226 Difference]: Without dead ends: 236 [2021-10-14 11:54:36,655 INFO L781 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 [2021-10-14 11:54:36,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-14 11:54:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-10-14 11:54:36,663 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) [2021-10-14 11:54:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 389 transitions. [2021-10-14 11:54:36,664 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 389 transitions. Word has length 44 [2021-10-14 11:54:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:54:36,664 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 389 transitions. [2021-10-14 11:54:36,664 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) [2021-10-14 11:54:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 389 transitions. [2021-10-14 11:54:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-14 11:54:36,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:36,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 11:54:36,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 11:54:36,666 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] === [2021-10-14 11:54:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:36,667 INFO L82 PathProgramCache]: Analyzing trace with hash -502891923, now seen corresponding path program 1 times [2021-10-14 11:54:36,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:36,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308793591] [2021-10-14 11:54:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:36,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:54:36,699 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 11:54:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:54:36,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 11:54:36,751 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 11:54:36,751 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:36,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:36,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 11:54:36,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:36,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-14 11:54:36,760 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 11:54:36,760 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 11:54:36,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:54:36 BasicIcfg [2021-10-14 11:54:36,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 11:54:36,813 INFO L168 Benchmark]: Toolchain (without parser) took 1550.52 ms. Allocated memory is still 188.7 MB. Free memory was 136.6 MB in the beginning and 65.0 MB in the end (delta: 71.5 MB). Peak memory consumption was 71.3 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,813 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 188.7 MB. Free memory is still 154.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 11:54:36,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.35 ms. Allocated memory is still 188.7 MB. Free memory was 136.4 MB in the beginning and 148.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 188.7 MB. Free memory was 148.4 MB in the beginning and 146.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,815 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 188.7 MB. Free memory was 146.3 MB in the beginning and 144.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,815 INFO L168 Benchmark]: RCFGBuilder took 248.48 ms. Allocated memory is still 188.7 MB. Free memory was 144.7 MB in the beginning and 132.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,818 INFO L168 Benchmark]: TraceAbstraction took 757.11 ms. Allocated memory is still 188.7 MB. Free memory was 132.1 MB in the beginning and 65.0 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:36,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 188.7 MB. Free memory is still 154.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 461.35 ms. Allocated memory is still 188.7 MB. Free memory was 136.4 MB in the beginning and 148.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 188.7 MB. Free memory was 148.4 MB in the beginning and 146.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 188.7 MB. Free memory was 146.3 MB in the beginning and 144.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 248.48 ms. Allocated memory is still 188.7 MB. Free memory was 144.7 MB in the beginning and 132.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 757.11 ms. Allocated memory is still 188.7 MB. Free memory was 132.1 MB in the beginning and 65.0 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 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: 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++=27, glob++=25, glob++=0, m={7:0}, n={9:0}] [L935] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=27, glob++=25, glob++=0, m={7:0}, n={9:0}] [L938] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=27, glob++=25, glob++=0, m={7:0}, n={9:0}] [L926] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=27, glob++=25, glob++=0, 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: 636.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 11.4ms, AutomataDifference: 139.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 283 SDtfs, 71 SDslu, 194 SDs, 0 SdLazy, 33 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms 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: 52.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.1ms SsaConstructionTime, 83.2ms SatisfiabilityAnalysisTime, 153.6ms 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! [2021-10-14 11:54:36,848 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...