/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_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 16:36:21,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 16:36:21,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 16:36:21,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 16:36:21,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-22 16:36:21,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-22 16:36:21,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-22 16:36:21,456 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 16:36:21,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 16:36:21,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 16:36:21,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 16:36:21,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 16:36:21,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 16:36:21,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 16:36:21,477 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 16:36:21,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 16:36:21,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 16:36:21,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 16:36:21,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 16:36:21,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 16:36:21,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 16:36:21,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 16:36:21,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 16:36:21,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 16:36:21,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 16:36:21,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-22 16:36:21,480 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-22 16:36:21,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 16:36:21,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 16:36:21,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 16:36:21,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 16:36:21,781 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-22 16:36:21,781 INFO L275 PluginConnector]: CDTParser initialized [2021-08-22 16:36:21,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-08-22 16:36:21,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262adb40d/f8820af2c7ac441188499bfa054c78be/FLAG4ce297e0d [2021-08-22 16:36:22,317 INFO L306 CDTParser]: Found 1 translation units. [2021-08-22 16:36:22,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-08-22 16:36:22,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262adb40d/f8820af2c7ac441188499bfa054c78be/FLAG4ce297e0d [2021-08-22 16:36:22,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262adb40d/f8820af2c7ac441188499bfa054c78be [2021-08-22 16:36:22,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 16:36:22,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-22 16:36:22,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-22 16:36:22,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-22 16:36:22,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-22 16:36:22,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:36:22" (1/1) ... [2021-08-22 16:36:22,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e94e926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:22, skipping insertion in model container [2021-08-22 16:36:22,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:36:22" (1/1) ... [2021-08-22 16:36:22,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-22 16:36:22,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-22 16:36:23,310 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_2-join.i[76153,76166] [2021-08-22 16:36:23,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-22 16:36:23,346 INFO L203 MainTranslator]: Completed pre-run [2021-08-22 16:36:23,384 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_2-join.i[76153,76166] [2021-08-22 16:36:23,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-22 16:36:23,475 INFO L208 MainTranslator]: Completed translation [2021-08-22 16:36:23,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23 WrapperNode [2021-08-22 16:36:23,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-22 16:36:23,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 16:36:23,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 16:36:23,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 16:36:23,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 16:36:23,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 16:36:23,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 16:36:23,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 16:36:23,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 16:36:23,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 16:36:23,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 16:36:23,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 16:36:23,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (1/1) ... [2021-08-22 16:36:23,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 16:36:23,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 16:36:23,613 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 16:36:23,615 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 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-22 16:36:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 16:36:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 16:36:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-22 16:36:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-22 16:36:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-22 16:36:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-22 16:36:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-22 16:36:23,642 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 16:36:24,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 16:36:24,143 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-22 16:36:24,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:36:24 BoogieIcfgContainer [2021-08-22 16:36:24,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 16:36:24,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 16:36:24,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 16:36:24,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 16:36:24,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:36:22" (1/3) ... [2021-08-22 16:36:24,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af31af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:36:24, skipping insertion in model container [2021-08-22 16:36:24,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:36:23" (2/3) ... [2021-08-22 16:36:24,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af31af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:36:24, skipping insertion in model container [2021-08-22 16:36:24,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:36:24" (3/3) ... [2021-08-22 16:36:24,154 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-08-22 16:36:24,159 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 16:36:24,159 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 16:36:24,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-22 16:36:24,159 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,176 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,176 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,176 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-22 16:36:24,180 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-22 16:36:24,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 16:36:24,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 16:36:24,212 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 16:36:24,213 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 16:36:24,233 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-22 16:36:24,237 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 16:36:24,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-22 16:36:24,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:24,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1260083599, now seen corresponding path program 1 times [2021-08-22 16:36:24,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:24,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157533970] [2021-08-22 16:36:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:24,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:24,556 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 16:36:24,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:24,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157533970] [2021-08-22 16:36:24,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157533970] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:24,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:24,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 16:36:24,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901976216] [2021-08-22 16:36:24,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 16:36:24,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 16:36:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-22 16:36:24,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:24,572 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:24,573 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 16:36:24,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:24,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 16:36:24,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:24,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1266345919, now seen corresponding path program 1 times [2021-08-22 16:36:24,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:24,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529585672] [2021-08-22 16:36:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:24,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:24,756 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 16:36:24,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:24,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529585672] [2021-08-22 16:36:24,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529585672] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:24,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:24,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-22 16:36:24,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065859424] [2021-08-22 16:36:24,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 16:36:24,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:24,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 16:36:24,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 16:36:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:24,759 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:24,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 16:36:24,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:24,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:24,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 16:36:24,826 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1540759730, now seen corresponding path program 1 times [2021-08-22 16:36:24,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:24,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123805107] [2021-08-22 16:36:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:24,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 16:36:24,951 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 16:36:24,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 16:36:24,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123805107] [2021-08-22 16:36:24,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123805107] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 16:36:24,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 16:36:24,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 16:36:24,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758996686] [2021-08-22 16:36:24,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-22 16:36:24,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 16:36:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-22 16:36:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-22 16:36:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:24,965 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 16:36:24,965 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 16:36:24,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:24,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:24,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 16:36:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-22 16:36:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 16:36:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-22 16:36:25,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-22 16:36:25,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-22 16:36:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 16:36:25,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1016284227, now seen corresponding path program 1 times [2021-08-22 16:36:25,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 16:36:25,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854305171] [2021-08-22 16:36:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 16:36:25,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 16:36:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 16:36:25,060 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-22 16:36:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 16:36:25,099 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-22 16:36:25,099 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-22 16:36:25,100 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:25,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:25,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:25,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-22 16:36:25,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 16:36:25,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-22 16:36:25,115 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 16:36:25,115 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 16:36:25,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:36:25 BasicIcfg [2021-08-22 16:36:25,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 16:36:25,156 INFO L168 Benchmark]: Toolchain (without parser) took 2495.32 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 164.3 MB in the beginning and 135.9 MB in the end (delta: 28.4 MB). Peak memory consumption was 69.5 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:25,156 INFO L168 Benchmark]: CDTParser took 10.22 ms. Allocated memory is still 203.4 MB. Free memory is still 183.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 16:36:25,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.71 ms. Allocated memory is still 203.4 MB. Free memory was 164.2 MB in the beginning and 141.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:25,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 203.4 MB. Free memory was 141.3 MB in the beginning and 138.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:25,157 INFO L168 Benchmark]: Boogie Preprocessor took 35.57 ms. Allocated memory is still 203.4 MB. Free memory was 138.2 MB in the beginning and 136.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:25,157 INFO L168 Benchmark]: RCFGBuilder took 562.44 ms. Allocated memory is still 203.4 MB. Free memory was 136.1 MB in the beginning and 94.1 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2021-08-22 16:36:25,159 INFO L168 Benchmark]: TraceAbstraction took 1008.08 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 93.6 MB in the beginning and 135.9 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 16:36:25,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 10.22 ms. Allocated memory is still 203.4 MB. Free memory is still 183.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 814.71 ms. Allocated memory is still 203.4 MB. Free memory was 164.2 MB in the beginning and 141.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 203.4 MB. Free memory was 141.3 MB in the beginning and 138.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.57 ms. Allocated memory is still 203.4 MB. Free memory was 138.2 MB in the beginning and 136.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 562.44 ms. Allocated memory is still 203.4 MB. Free memory was 136.1 MB in the beginning and 94.1 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1008.08 ms. Allocated memory was 203.4 MB in the beginning and 244.3 MB in the end (delta: 40.9 MB). Free memory was 93.6 MB in the beginning and 135.9 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 253, positive: 234, positive conditional: 50, positive unconditional: 184, negative: 19, negative conditional: 16, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 239, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 239, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 245, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 245, positive: 234, positive conditional: 2, positive unconditional: 232, 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: 245, positive: 234, positive conditional: 2, positive unconditional: 232, 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: 189, positive: 185, positive conditional: 0, positive unconditional: 185, 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: 189, positive: 183, positive conditional: 0, positive unconditional: 183, 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: 39, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 32, negative conditional: 3, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245, positive: 49, positive conditional: 2, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 189, unknown conditional: 1, unknown unconditional: 188] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 52, Maximal queried relation: 3, Independence queries for same thread: 14 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 50, Number of persistent set computation: 79, Number of trivial persistent sets: 64, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 187, positive: 184, positive conditional: 0, positive unconditional: 184, 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: 253, positive: 234, positive conditional: 50, positive unconditional: 184, negative: 19, negative conditional: 16, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 239, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 239, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 245, positive: 234, positive conditional: 50, positive unconditional: 184, 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: 245, positive: 234, positive conditional: 2, positive unconditional: 232, 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: 245, positive: 234, positive conditional: 2, positive unconditional: 232, 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: 189, positive: 185, positive conditional: 0, positive unconditional: 185, 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: 189, positive: 183, positive conditional: 0, positive unconditional: 183, 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: 39, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 32, negative conditional: 3, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245, positive: 49, positive conditional: 2, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 189, unknown conditional: 1, unknown unconditional: 188] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 185, Positive conditional cache size: 0, Positive unconditional cache size: 185, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 52, Maximal queried relation: 3, Independence queries for same thread: 14 - 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={3:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, 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: 903.4ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 225.3ms, 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: 14.7ms SsaConstructionTime, 87.0ms SatisfiabilityAnalysisTime, 296.6ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 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 16:36:25,189 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 16:36:25,401 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...