/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_25-single_acc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 11:54:46,010 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-14 11:54:46,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-14 11:54:46,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-14 11:54:46,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-14 11:54:46,109 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 11:54:46,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 11:54:46,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 11:54:46,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-14 11:54:46,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-14 11:54:46,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 11:54:46,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 11:54:46,134 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 11:54:46,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 11:54:46,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 11:54:46,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 11:54:46,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 11:54:46,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:54:46,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 11:54:46,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-14 11:54:46,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 11:54:46,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 11:54:46,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 11:54:46,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 11:54:46,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 11:54:46,338 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 11:54:46,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_25-single_acc.i [2021-10-14 11:54:46,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1d073ff5/5045f6e2d0de4105925b27e9b489c300/FLAG78b275311 [2021-10-14 11:54:46,802 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 11:54:46,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_25-single_acc.i [2021-10-14 11:54:46,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1d073ff5/5045f6e2d0de4105925b27e9b489c300/FLAG78b275311 [2021-10-14 11:54:46,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1d073ff5/5045f6e2d0de4105925b27e9b489c300 [2021-10-14 11:54:46,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 11:54:46,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 11:54:46,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 11:54:46,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 11:54:46,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 11:54:46,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:54:46" (1/1) ... [2021-10-14 11:54:46,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d49a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:46, skipping insertion in model container [2021-10-14 11:54:46,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:54:46" (1/1) ... [2021-10-14 11:54:46,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 11:54:46,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 11:54:47,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:54:47,113 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 11:54:47,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 11:54:47,178 INFO L208 MainTranslator]: Completed translation [2021-10-14 11:54:47,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47 WrapperNode [2021-10-14 11:54:47,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 11:54:47,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 11:54:47,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 11:54:47,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 11:54:47,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 11:54:47,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 11:54:47,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 11:54:47,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 11:54:47,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 11:54:47,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 11:54:47,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 11:54:47,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 11:54:47,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (1/1) ... [2021-10-14 11:54:47,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 11:54:47,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 11:54:47,261 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 11:54:47,280 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 11:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 11:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 11:54:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 11:54:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 11:54:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 11:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 11:54:47,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 11:54:47,297 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 11:54:47,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 11:54:47,525 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-14 11:54:47,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:47 BoogieIcfgContainer [2021-10-14 11:54:47,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 11:54:47,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 11:54:47,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 11:54:47,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 11:54:47,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:54:46" (1/3) ... [2021-10-14 11:54:47,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c78c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:47, skipping insertion in model container [2021-10-14 11:54:47,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:54:47" (2/3) ... [2021-10-14 11:54:47,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c78c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:47, skipping insertion in model container [2021-10-14 11:54:47,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:47" (3/3) ... [2021-10-14 11:54:47,532 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2021-10-14 11:54:47,536 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-14 11:54:47,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 11:54:47,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-14 11:54:47,536 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 11:54:47,561 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,562 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,563 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,564 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,565 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,566 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,567 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,568 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,569 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,570 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,570 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,572 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,572 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,573 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,573 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 11:54:47,578 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-14 11:54:47,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 11:54:47,609 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 11:54:47,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-14 11:54:47,616 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 57 transitions, 124 flow [2021-10-14 11:54:47,689 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1992 states, 1989 states have (on average 2.6983408748114632) internal successors, (5367), 1991 states have internal predecessors, (5367), 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 11:54:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 1992 states, 1989 states have (on average 2.6983408748114632) internal successors, (5367), 1991 states have internal predecessors, (5367), 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 11:54:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-14 11:54:47,700 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:47,700 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] [2021-10-14 11:54:47,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-10-14 11:54:47,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1654535196, now seen corresponding path program 1 times [2021-10-14 11:54:47,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:47,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256670654] [2021-10-14 11:54:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:47,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:54:47,848 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 11:54:47,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:54:47,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256670654] [2021-10-14 11:54:47,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256670654] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:54:47,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:54:47,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 11:54:47,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2477008] [2021-10-14 11:54:47,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 11:54:47,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:54:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 11:54:47,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:47,868 INFO L87 Difference]: Start difference. First operand has 1992 states, 1989 states have (on average 2.6983408748114632) internal successors, (5367), 1991 states have internal predecessors, (5367), 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 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 11:54:47,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:54:47,983 INFO L93 Difference]: Finished difference Result 2256 states and 6038 transitions. [2021-10-14 11:54:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 11:54:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-10-14 11:54:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:54:48,007 INFO L225 Difference]: With dead ends: 2256 [2021-10-14 11:54:48,007 INFO L226 Difference]: Without dead ends: 1776 [2021-10-14 11:54:48,008 INFO L781 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 [2021-10-14 11:54:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2021-10-14 11:54:48,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1596. [2021-10-14 11:54:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1593 states have (on average 2.645323289391086) internal successors, (4214), 1595 states have internal predecessors, (4214), 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 11:54:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 4214 transitions. [2021-10-14 11:54:48,104 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 4214 transitions. Word has length 20 [2021-10-14 11:54:48,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:54:48,105 INFO L470 AbstractCegarLoop]: Abstraction has 1596 states and 4214 transitions. [2021-10-14 11:54:48,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 11:54:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 4214 transitions. [2021-10-14 11:54:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-14 11:54:48,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:48,112 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] [2021-10-14 11:54:48,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 11:54:48,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-10-14 11:54:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:48,115 INFO L82 PathProgramCache]: Analyzing trace with hash -498069247, now seen corresponding path program 1 times [2021-10-14 11:54:48,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:48,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877745867] [2021-10-14 11:54:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:48,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 11:54:48,157 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 11:54:48,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 11:54:48,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877745867] [2021-10-14 11:54:48,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877745867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 11:54:48,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 11:54:48,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 11:54:48,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203322733] [2021-10-14 11:54:48,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 11:54:48,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 11:54:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 11:54:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 11:54:48,160 INFO L87 Difference]: Start difference. First operand 1596 states and 4214 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 11:54:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-14 11:54:48,184 INFO L93 Difference]: Finished difference Result 1646 states and 4249 transitions. [2021-10-14 11:54:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 11:54:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-14 11:54:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-14 11:54:48,189 INFO L225 Difference]: With dead ends: 1646 [2021-10-14 11:54:48,190 INFO L226 Difference]: Without dead ends: 1130 [2021-10-14 11:54:48,190 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 11:54:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2021-10-14 11:54:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2021-10-14 11:54:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1128 states have (on average 2.4867021276595747) internal successors, (2805), 1129 states have internal predecessors, (2805), 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 11:54:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 2805 transitions. [2021-10-14 11:54:48,212 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 2805 transitions. Word has length 26 [2021-10-14 11:54:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-14 11:54:48,212 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 2805 transitions. [2021-10-14 11:54:48,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 11:54:48,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 2805 transitions. [2021-10-14 11:54:48,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-14 11:54:48,213 INFO L504 BasicCegarLoop]: Found error trace [2021-10-14 11:54:48,214 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] [2021-10-14 11:54:48,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 11:54:48,214 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-10-14 11:54:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 11:54:48,214 INFO L82 PathProgramCache]: Analyzing trace with hash -213029082, now seen corresponding path program 1 times [2021-10-14 11:54:48,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 11:54:48,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104031426] [2021-10-14 11:54:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 11:54:48,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 11:54:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:54:48,246 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 11:54:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 11:54:48,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 11:54:48,277 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 11:54:48,278 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:48,279 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 11:54:48,279 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-14 11:54:48,279 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:48,279 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 11:54:48,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 11:54:48,284 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 11:54:48,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 11:54:48,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:54:48 BasicIcfg [2021-10-14 11:54:48,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 11:54:48,303 INFO L168 Benchmark]: Toolchain (without parser) took 1467.75 ms. Allocated memory was 190.8 MB in the beginning and 235.9 MB in the end (delta: 45.1 MB). Free memory was 138.1 MB in the beginning and 151.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,303 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory was 155.9 MB in the beginning and 155.9 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 11:54:48,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.87 ms. Allocated memory was 190.8 MB in the beginning and 235.9 MB in the end (delta: 45.1 MB). Free memory was 137.8 MB in the beginning and 203.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.64 ms. Allocated memory is still 235.9 MB. Free memory was 203.7 MB in the beginning and 202.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,304 INFO L168 Benchmark]: Boogie Preprocessor took 21.06 ms. Allocated memory is still 235.9 MB. Free memory was 202.0 MB in the beginning and 200.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,304 INFO L168 Benchmark]: RCFGBuilder took 288.89 ms. Allocated memory is still 235.9 MB. Free memory was 200.9 MB in the beginning and 190.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,305 INFO L168 Benchmark]: TraceAbstraction took 774.16 ms. Allocated memory is still 235.9 MB. Free memory was 190.1 MB in the beginning and 151.5 MB in the end (delta: 38.6 MB). Peak memory consumption was 39.4 MB. Max. memory is 8.0 GB. [2021-10-14 11:54:48,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory was 155.9 MB in the beginning and 155.9 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 341.87 ms. Allocated memory was 190.8 MB in the beginning and 235.9 MB in the end (delta: 45.1 MB). Free memory was 137.8 MB in the beginning and 203.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.64 ms. Allocated memory is still 235.9 MB. Free memory was 203.7 MB in the beginning and 202.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.06 ms. Allocated memory is still 235.9 MB. Free memory was 202.0 MB in the beginning and 200.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 288.89 ms. Allocated memory is still 235.9 MB. Free memory was 200.9 MB in the beginning and 190.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 774.16 ms. Allocated memory is still 235.9 MB. Free memory was 190.1 MB in the beginning and 151.5 MB in the end (delta: 38.6 MB). Peak memory consumption was 39.4 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: 674]: the program contains a data race the program contains a data race We found a FailurePath: [L672] 0 int x; VAL [x=0] [L678] 0 pthread_t id1, id2; VAL [x=0] [L679] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, x=0] [L680] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, x=1, x++=0x++=6x++=5] - UnprovableResult [Line: 679]: 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: 680]: 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 4 procedures, 75 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 677.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 18.6ms, AutomataDifference: 184.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 79.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 156 SDtfs, 54 SDslu, 86 SDs, 0 SdLazy, 28 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1992occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 109.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.2ms SsaConstructionTime, 41.1ms SatisfiabilityAnalysisTime, 97.1ms InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 11:54:48,343 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...