/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/02-base_24-malloc_races.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 22:45:43,479 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-16 22:45:43,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 22:45:43,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 22:45:43,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 22:45:43,575 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 22:45:43,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 22:45:43,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 22:45:43,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 22:45:43,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 22:45:43,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 22:45:43,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 22:45:43,599 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 22:45:43,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 22:45:43,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 22:45:43,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 22:45:43,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 22:45:43,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:43,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 22:45:43,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 22:45:43,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 22:45:43,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 22:45:43,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 22:45:43,602 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 22:45:43,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 22:45:43,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 22:45:43,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 22:45:43,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 22:45:43,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 22:45:43,849 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 22:45:43,850 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 22:45:43,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-16 22:45:43,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1902861da/71e8a2df803348b5b8a0037eb76412f0/FLAG36fa80223 [2021-10-16 22:45:44,332 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 22:45:44,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-16 22:45:44,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1902861da/71e8a2df803348b5b8a0037eb76412f0/FLAG36fa80223 [2021-10-16 22:45:44,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1902861da/71e8a2df803348b5b8a0037eb76412f0 [2021-10-16 22:45:44,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 22:45:44,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 22:45:44,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:44,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 22:45:44,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 22:45:44,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d63723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44, skipping insertion in model container [2021-10-16 22:45:44,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 22:45:44,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 22:45:44,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:44,810 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 22:45:44,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:45:44,893 INFO L208 MainTranslator]: Completed translation [2021-10-16 22:45:44,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44 WrapperNode [2021-10-16 22:45:44,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 22:45:44,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:44,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 22:45:44,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 22:45:44,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 22:45:44,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 22:45:44,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 22:45:44,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 22:45:44,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 22:45:44,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 22:45:44,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 22:45:44,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 22:45:44,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (1/1) ... [2021-10-16 22:45:44,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:45:44,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:45:44,996 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 22:45:45,003 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 22:45:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 22:45:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 22:45:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 22:45:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 22:45:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 22:45:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 22:45:45,027 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 22:45:45,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 22:45:45,301 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 22:45:45,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:45 BoogieIcfgContainer [2021-10-16 22:45:45,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 22:45:45,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 22:45:45,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 22:45:45,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 22:45:45,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:45:44" (1/3) ... [2021-10-16 22:45:45,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb7a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:45, skipping insertion in model container [2021-10-16 22:45:45,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:45:44" (2/3) ... [2021-10-16 22:45:45,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bb7a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:45:45, skipping insertion in model container [2021-10-16 22:45:45,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:45:45" (3/3) ... [2021-10-16 22:45:45,308 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2021-10-16 22:45:45,311 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 22:45:45,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 22:45:45,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 22:45:45,311 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 22:45:45,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,336 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,344 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,344 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,352 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,353 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,353 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:45:45,356 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 22:45:45,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 22:45:45,386 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 22:45:45,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 22:45:45,393 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 113 places, 109 transitions, 223 flow [2021-10-16 22:45:45,438 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 919 states, 915 states have (on average 1.8950819672131147) internal successors, (1734), 918 states have internal predecessors, (1734), 0 states have call successors, (0), 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 22:45:45,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 919 states, 915 states have (on average 1.8950819672131147) internal successors, (1734), 918 states have internal predecessors, (1734), 0 states have call successors, (0), 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 22:45:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-16 22:45:45,444 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:45,445 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] [2021-10-16 22:45:45,445 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash -920298377, now seen corresponding path program 1 times [2021-10-16 22:45:45,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:45,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744800149] [2021-10-16 22:45:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:45,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:45,585 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 22:45:45,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:45,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744800149] [2021-10-16 22:45:45,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744800149] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:45,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:45,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:45,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904336948] [2021-10-16 22:45:45,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:45,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:45,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:45,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:45,600 INFO L87 Difference]: Start difference. First operand has 919 states, 915 states have (on average 1.8950819672131147) internal successors, (1734), 918 states have internal predecessors, (1734), 0 states have call successors, (0), 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 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 22:45:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:45,648 INFO L93 Difference]: Finished difference Result 918 states and 1733 transitions. [2021-10-16 22:45:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:45,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-10-16 22:45:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:45,660 INFO L225 Difference]: With dead ends: 918 [2021-10-16 22:45:45,660 INFO L226 Difference]: Without dead ends: 918 [2021-10-16 22:45:45,661 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2021-10-16 22:45:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2021-10-16 22:45:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 915 states have (on average 1.8939890710382514) internal successors, (1733), 917 states have internal predecessors, (1733), 0 states have call successors, (0), 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 22:45:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1733 transitions. [2021-10-16 22:45:45,725 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1733 transitions. Word has length 29 [2021-10-16 22:45:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:45,725 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1733 transitions. [2021-10-16 22:45:45,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 22:45:45,726 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1733 transitions. [2021-10-16 22:45:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 22:45:45,726 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:45,726 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] [2021-10-16 22:45:45,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 22:45:45,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:45,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1535217939, now seen corresponding path program 1 times [2021-10-16 22:45:45,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:45,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8799614] [2021-10-16 22:45:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:45,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:45,781 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 22:45:45,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:45,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8799614] [2021-10-16 22:45:45,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8799614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:45,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:45,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 22:45:45,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502829146] [2021-10-16 22:45:45,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:45,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:45,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:45,784 INFO L87 Difference]: Start difference. First operand 918 states and 1733 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 22:45:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:45,797 INFO L93 Difference]: Finished difference Result 917 states and 1732 transitions. [2021-10-16 22:45:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-10-16 22:45:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:45,800 INFO L225 Difference]: With dead ends: 917 [2021-10-16 22:45:45,801 INFO L226 Difference]: Without dead ends: 917 [2021-10-16 22:45:45,801 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:45,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2021-10-16 22:45:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2021-10-16 22:45:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 915 states have (on average 1.892896174863388) internal successors, (1732), 916 states have internal predecessors, (1732), 0 states have call successors, (0), 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 22:45:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1732 transitions. [2021-10-16 22:45:45,823 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1732 transitions. Word has length 36 [2021-10-16 22:45:45,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:45,823 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1732 transitions. [2021-10-16 22:45:45,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 22:45:45,823 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1732 transitions. [2021-10-16 22:45:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-16 22:45:45,824 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:45,825 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, 1, 1, 1, 1, 1] [2021-10-16 22:45:45,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 22:45:45,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:45,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:45,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1063787481, now seen corresponding path program 1 times [2021-10-16 22:45:45,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:45,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352969248] [2021-10-16 22:45:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:45,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:45,994 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 22:45:45,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:45,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352969248] [2021-10-16 22:45:45,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352969248] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:45,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:45,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 22:45:45,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740988436] [2021-10-16 22:45:45,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 22:45:45,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 22:45:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:45:45,999 INFO L87 Difference]: Start difference. First operand 917 states and 1732 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 22:45:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:46,137 INFO L93 Difference]: Finished difference Result 1224 states and 2340 transitions. [2021-10-16 22:45:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 22:45:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-10-16 22:45:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:46,143 INFO L225 Difference]: With dead ends: 1224 [2021-10-16 22:45:46,143 INFO L226 Difference]: Without dead ends: 1224 [2021-10-16 22:45:46,144 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:45:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-10-16 22:45:46,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1007. [2021-10-16 22:45:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 1005 states have (on average 1.8985074626865672) internal successors, (1908), 1006 states have internal predecessors, (1908), 0 states have call successors, (0), 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 22:45:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1908 transitions. [2021-10-16 22:45:46,166 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1908 transitions. Word has length 54 [2021-10-16 22:45:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:46,167 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1908 transitions. [2021-10-16 22:45:46,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 22:45:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1908 transitions. [2021-10-16 22:45:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-16 22:45:46,173 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:46,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:46,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 22:45:46,173 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:46,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1908493103, now seen corresponding path program 1 times [2021-10-16 22:45:46,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:46,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396919791] [2021-10-16 22:45:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:46,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:46,227 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 22:45:46,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:46,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396919791] [2021-10-16 22:45:46,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396919791] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:46,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:46,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 22:45:46,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105661896] [2021-10-16 22:45:46,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:45:46,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:45:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:46,229 INFO L87 Difference]: Start difference. First operand 1007 states and 1908 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 22:45:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:46,243 INFO L93 Difference]: Finished difference Result 634 states and 1140 transitions. [2021-10-16 22:45:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:45:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-10-16 22:45:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:46,245 INFO L225 Difference]: With dead ends: 634 [2021-10-16 22:45:46,245 INFO L226 Difference]: Without dead ends: 634 [2021-10-16 22:45:46,246 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:45:46,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-10-16 22:45:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-10-16 22:45:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 631 states have (on average 1.8066561014263074) internal successors, (1140), 633 states have internal predecessors, (1140), 0 states have call successors, (0), 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 22:45:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1140 transitions. [2021-10-16 22:45:46,259 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1140 transitions. Word has length 64 [2021-10-16 22:45:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:46,259 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1140 transitions. [2021-10-16 22:45:46,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 22:45:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1140 transitions. [2021-10-16 22:45:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-16 22:45:46,260 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:46,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:45:46,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 22:45:46,261 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1411162862, now seen corresponding path program 1 times [2021-10-16 22:45:46,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:46,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895127569] [2021-10-16 22:45:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:46,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:46,360 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 22:45:46,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:46,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895127569] [2021-10-16 22:45:46,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895127569] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:46,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:46,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 22:45:46,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893328132] [2021-10-16 22:45:46,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 22:45:46,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 22:45:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:45:46,362 INFO L87 Difference]: Start difference. First operand 634 states and 1140 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 22:45:46,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:46,471 INFO L93 Difference]: Finished difference Result 765 states and 1348 transitions. [2021-10-16 22:45:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 22:45:46,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-10-16 22:45:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:46,474 INFO L225 Difference]: With dead ends: 765 [2021-10-16 22:45:46,474 INFO L226 Difference]: Without dead ends: 495 [2021-10-16 22:45:46,474 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:45:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-10-16 22:45:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 403. [2021-10-16 22:45:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 401 states have (on average 1.7182044887780548) internal successors, (689), 402 states have internal predecessors, (689), 0 states have call successors, (0), 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 22:45:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 689 transitions. [2021-10-16 22:45:46,482 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 689 transitions. Word has length 65 [2021-10-16 22:45:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:46,483 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 689 transitions. [2021-10-16 22:45:46,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 22:45:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 689 transitions. [2021-10-16 22:45:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-16 22:45:46,484 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:46,484 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, 1, 1, 1, 1, 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 22:45:46,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 22:45:46,485 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:46,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1953790999, now seen corresponding path program 1 times [2021-10-16 22:45:46,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:46,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339898345] [2021-10-16 22:45:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:46,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:45:46,649 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 22:45:46,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:45:46,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339898345] [2021-10-16 22:45:46,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339898345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:45:46,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:45:46,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 22:45:46,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740922130] [2021-10-16 22:45:46,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 22:45:46,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:45:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 22:45:46,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-16 22:45:46,652 INFO L87 Difference]: Start difference. First operand 403 states and 689 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:45:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:45:46,896 INFO L93 Difference]: Finished difference Result 391 states and 666 transitions. [2021-10-16 22:45:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 22:45:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-10-16 22:45:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:45:46,898 INFO L225 Difference]: With dead ends: 391 [2021-10-16 22:45:46,898 INFO L226 Difference]: Without dead ends: 355 [2021-10-16 22:45:46,899 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-10-16 22:45:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-10-16 22:45:46,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 343. [2021-10-16 22:45:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.6929824561403508) internal successors, (579), 342 states have internal predecessors, (579), 0 states have call successors, (0), 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 22:45:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 579 transitions. [2021-10-16 22:45:46,904 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 579 transitions. Word has length 77 [2021-10-16 22:45:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:45:46,904 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 579 transitions. [2021-10-16 22:45:46,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:45:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 579 transitions. [2021-10-16 22:45:46,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-16 22:45:46,905 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:45:46,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:46,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 22:45:46,905 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 22:45:46,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:45:46,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1154810246, now seen corresponding path program 1 times [2021-10-16 22:45:46,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:45:46,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040183618] [2021-10-16 22:45:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:45:46,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:45:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:46,931 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 22:45:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:45:46,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 22:45:46,980 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 22:45:46,982 WARN L676 BasicCegarLoop]: Found a data race, but unable to determine exactly which statements and variables are involved. [2021-10-16 22:45:46,983 WARN L679 BasicCegarLoop]: C: *y = 8 [1222] might race with any of C: printf("%d\n",*y) [1234], or C: *x = 3 [1221], or C: *x = 3 [1221], or C: *x = 3 [1221], or C: *x = 3 [1221], or C: printf("%d\n",*x) [1232], or C: printf("%d\n",*x) [1232], or C: printf("%d\n",*x) [1232], or C: printf("%d\n",*x) [1232] [2021-10-16 22:45:46,984 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 22:45:46,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:45:46,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 22:45:46,992 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 22:45:46,992 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 22:45:47,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:45:47 BasicIcfg [2021-10-16 22:45:47,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 22:45:47,067 INFO L168 Benchmark]: Toolchain (without parser) took 2699.66 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 147.8 MB in the beginning and 215.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 114.8 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,067 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 201.3 MB. Free memory is still 167.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 22:45:47,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.10 ms. Allocated memory is still 201.3 MB. Free memory was 147.6 MB in the beginning and 151.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.33 ms. Allocated memory is still 201.3 MB. Free memory was 151.2 MB in the beginning and 148.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,071 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 201.3 MB. Free memory was 148.5 MB in the beginning and 146.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,073 INFO L168 Benchmark]: RCFGBuilder took 337.99 ms. Allocated memory is still 201.3 MB. Free memory was 146.5 MB in the beginning and 132.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,075 INFO L168 Benchmark]: TraceAbstraction took 1761.97 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 132.3 MB in the beginning and 215.9 MB in the end (delta: -83.5 MB). Peak memory consumption was 99.4 MB. Max. memory is 8.0 GB. [2021-10-16 22:45:47,076 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 201.3 MB. Free memory is still 167.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 526.10 ms. Allocated memory is still 201.3 MB. Free memory was 147.6 MB in the beginning and 151.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.33 ms. Allocated memory is still 201.3 MB. Free memory was 151.2 MB in the beginning and 148.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 201.3 MB. Free memory was 148.5 MB in the beginning and 146.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 337.99 ms. Allocated memory is still 201.3 MB. Free memory was 146.5 MB in the beginning and 132.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1761.97 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 132.3 MB in the beginning and 215.9 MB in the end (delta: -83.5 MB). Peak memory consumption was 99.4 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: 1222]: the program contains a data race the program contains a data race We found a FailurePath: [L1216] 0 int *x; VAL [x={0:0}] [L1217] 0 int *y; VAL [x={0:0}, y={0:0}] [L1218] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={9:0}, x={0:0}, y={0:0}] [L1227] 0 pthread_t id; VAL [m={9:0}, x={0:0}, y={0:0}] [L1228] 0 x = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={0:0}] [L1229] 0 y = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={-3:0}] [L1230] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1232] 0 \read(*x) VAL [arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1234] 0 *y VAL [*x=106, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1234] 0 \read(*y) VAL [*x=106, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1221] 1 *x = 3 VAL [*x=106, *x = 3=108, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=104, *y = 8=112, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=104, *y = 8=112, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: 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. - UnprovableResult [Line: 1221]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1607.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 15.8ms, AutomataDifference: 611.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 51.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 777 SDtfs, 392 SDslu, 1238 SDs, 0 SdLazy, 610 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 318.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 189.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1007occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 125.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 321 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.9ms SsaConstructionTime, 102.8ms SatisfiabilityAnalysisTime, 472.6ms InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 22:45:47,104 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...