/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-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 16:36:23,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 16:36:23,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 16:36:23,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 16:36:23,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-22 16:36:23,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-22 16:36:23,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-22 16:36:23,158 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-POR-NewStatesSleepPersistent-NoLbe.epf [2021-08-22 16:36:23,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 16:36:23,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 16:36:23,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 16:36:23,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 16:36:23,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 16:36:23,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 16:36:23,194 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 16:36:23,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 16:36:23,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 16:36:23,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 16:36:23,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 16:36:23,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 16:36:23,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 16:36:23,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 16:36:23,198 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-22 16:36:23,199 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-22 16:36:23,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 16:36:23,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 16:36:23,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 16:36:23,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 16:36:23,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-22 16:36:23,472 INFO L275 PluginConnector]: CDTParser initialized [2021-08-22 16:36:23,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-22 16:36:23,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e98d6a22/6e4b050db8e543caafcfd5577e510cd6/FLAG6e9fa38fb [2021-08-22 16:36:23,921 INFO L306 CDTParser]: Found 1 translation units. [2021-08-22 16:36:23,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-22 16:36:23,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e98d6a22/6e4b050db8e543caafcfd5577e510cd6/FLAG6e9fa38fb [2021-08-22 16:36:24,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e98d6a22/6e4b050db8e543caafcfd5577e510cd6 [2021-08-22 16:36:24,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 16:36:24,278 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-22 16:36:24,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-22 16:36:24,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-22 16:36:24,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-22 16:36:24,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679aeb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24, skipping insertion in model container [2021-08-22 16:36:24,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-22 16:36:24,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-22 16:36:24,697 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-22 16:36:24,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-22 16:36:24,716 INFO L203 MainTranslator]: Completed pre-run [2021-08-22 16:36:24,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-22 16:36:24,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-22 16:36:24,819 INFO L208 MainTranslator]: Completed translation [2021-08-22 16:36:24,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24 WrapperNode [2021-08-22 16:36:24,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-22 16:36:24,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 16:36:24,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 16:36:24,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 16:36:24,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 16:36:24,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 16:36:24,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 16:36:24,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 16:36:24,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 16:36:24,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 16:36:24,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 16:36:24,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 16:36:24,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (1/1) ... [2021-08-22 16:36:24,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 16:36:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 16:36:24,939 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) [2021-08-22 16:36:24,946 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 [2021-08-22 16:36:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-22 16:36:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 16:36:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 16:36:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-22 16:36:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 16:36:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 16:36:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-22 16:36:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-22 16:36:24,978 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 16:36:25,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 16:36:25,459 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-22 16:36:25,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:36:25 BoogieIcfgContainer [2021-08-22 16:36:25,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 16:36:25,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 16:36:25,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 16:36:25,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 16:36:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:36:24" (1/3) ... [2021-08-22 16:36:25,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5828f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:36:25, skipping insertion in model container [2021-08-22 16:36:25,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:24" (2/3) ... [2021-08-22 16:36:25,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5828f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:36:25, skipping insertion in model container [2021-08-22 16:36:25,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:36:25" (3/3) ... [2021-08-22 16:36:25,476 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-08-22 16:36:25,479 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 16:36:25,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 16:36:25,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-22 16:36:25,480 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 16:36:25,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,495 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,495 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,497 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,499 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,499 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,499 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:25,503 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-22 16:36:25,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 16:36:25,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 16:36:25,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-22 16:36:25,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-22 16:36:25,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-22 16:36:25,569 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=PARTIAL_ORDER_FA, 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 [2021-08-22 16:36:25,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-22 16:36:25,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:25,602 INFO L82 PathProgramCache]: Analyzing trace with hash -877078411, now seen corresponding path program 1 times [2021-08-22 16:36:25,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:25,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420122357] [2021-08-22 16:36:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:25,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 16:36:25,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:25,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420122357] [2021-08-22 16:36:25,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420122357] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:25,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:25,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 16:36:25,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799600243] [2021-08-22 16:36:25,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 16:36:25,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 16:36:25,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-22 16:36:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:25,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:25,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-08-22 16:36:25,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:26,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 16:36:26,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:26,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1488108840, now seen corresponding path program 1 times [2021-08-22 16:36:26,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:26,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416704305] [2021-08-22 16:36:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:26,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 16:36:26,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:26,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416704305] [2021-08-22 16:36:26,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416704305] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:26,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:26,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-22 16:36:26,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603354922] [2021-08-22 16:36:26,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 16:36:26,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:26,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 16:36:26,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 16:36:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:26,191 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:26,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 16:36:26,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:26,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:26,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:26,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 16:36:26,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:26,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:26,237 INFO L82 PathProgramCache]: Analyzing trace with hash 614780201, now seen corresponding path program 1 times [2021-08-22 16:36:26,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:26,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203013639] [2021-08-22 16:36:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:26,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 16:36:26,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:26,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203013639] [2021-08-22 16:36:26,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203013639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:26,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:26,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 16:36:26,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007975420] [2021-08-22 16:36:26,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 16:36:26,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:26,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 16:36:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-22 16:36:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:26,356 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:26,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-22 16:36:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:26,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-22 16:36:26,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:26,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:26,430 INFO L82 PathProgramCache]: Analyzing trace with hash 456497190, now seen corresponding path program 1 times [2021-08-22 16:36:26,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:26,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47476599] [2021-08-22 16:36:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:26,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 16:36:26,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-22 16:36:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 16:36:26,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-22 16:36:26,511 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-22 16:36:26,512 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:26,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:26,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:26,514 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:26,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 16:36:26,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-22 16:36:26,528 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 16:36:26,528 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 16:36:26,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:36:26 BasicIcfg [2021-08-22 16:36:26,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 16:36:26,572 INFO L168 Benchmark]: Toolchain (without parser) took 2292.66 ms. Allocated memory was 194.0 MB in the beginning and 245.4 MB in the end (delta: 51.4 MB). Free memory was 154.7 MB in the beginning and 114.0 MB in the end (delta: 40.7 MB). Peak memory consumption was 93.4 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,572 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 194.0 MB. Free memory was 174.4 MB in the beginning and 174.3 MB in the end (delta: 78.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 16:36:26,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.30 ms. Allocated memory is still 194.0 MB. Free memory was 154.4 MB in the beginning and 134.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 194.0 MB. Free memory was 134.8 MB in the beginning and 131.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,573 INFO L168 Benchmark]: Boogie Preprocessor took 35.37 ms. Allocated memory is still 194.0 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,573 INFO L168 Benchmark]: RCFGBuilder took 549.75 ms. Allocated memory is still 194.0 MB. Free memory was 129.5 MB in the beginning and 88.1 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,573 INFO L168 Benchmark]: TraceAbstraction took 1108.51 ms. Allocated memory was 194.0 MB in the beginning and 245.4 MB in the end (delta: 51.4 MB). Free memory was 87.6 MB in the beginning and 114.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:26,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 194.0 MB. Free memory was 174.4 MB in the beginning and 174.3 MB in the end (delta: 78.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 538.30 ms. Allocated memory is still 194.0 MB. Free memory was 154.4 MB in the beginning and 134.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 194.0 MB. Free memory was 134.8 MB in the beginning and 131.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.37 ms. Allocated memory is still 194.0 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 549.75 ms. Allocated memory is still 194.0 MB. Free memory was 129.5 MB in the beginning and 88.1 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1108.51 ms. Allocated memory was 194.0 MB in the beginning and 245.4 MB in the end (delta: 51.4 MB). Free memory was 87.6 MB in the beginning and 114.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 20, negative conditional: 17, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 211, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 211, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 11, negative conditional: 6, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 217, positive: 206, positive conditional: 2, positive unconditional: 204, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 2, positive unconditional: 204, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 153, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 153, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, positive: 57, positive conditional: 2, positive unconditional: 55, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 153, unknown conditional: 1, unknown unconditional: 152] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 60, Maximal queried relation: 3, Independence queries for same thread: 15 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 52, Number of persistent set computation: 79, Number of trivial persistent sets: 64, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 226, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 20, negative conditional: 17, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 211, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 211, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 58, positive unconditional: 148, negative: 11, negative conditional: 6, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 217, positive: 206, positive conditional: 2, positive unconditional: 204, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 2, positive unconditional: 204, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 153, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 153, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, positive: 57, positive conditional: 2, positive unconditional: 55, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 153, unknown conditional: 1, unknown unconditional: 152] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 60, Maximal queried relation: 3, Independence queries for same thread: 15 - 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: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={9:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={9:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1713] 0 return 0; VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1721] 0 void *status; VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={9:0}, pdev=4, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 995.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 281.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.3ms SsaConstructionTime, 94.7ms SatisfiabilityAnalysisTime, 290.4ms InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-22 16:36:26,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-22 16:36:26,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...