./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:09:08,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:09:08,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:09:08,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:09:08,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:09:08,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:09:08,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:09:08,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:09:08,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:09:08,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:09:08,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:09:08,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:09:08,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:09:08,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:09:08,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:09:08,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:09:08,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:09:08,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:09:08,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:09:08,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:09:08,692 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:09:08,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:09:08,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:09:08,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:09:08,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:09:08,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:09:08,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:09:08,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:09:08,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:09:08,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:09:08,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:09:08,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:09:08,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:09:08,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:09:08,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:09:08,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:09:08,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:09:08,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:09:08,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:09:08,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:09:08,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:09:08,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:09:08,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 22:09:08,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:09:08,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:09:08,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:09:08,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:09:08,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:09:08,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:09:08,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:09:08,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:09:08,747 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:09:08,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:09:08,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 22:09:08,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:09:08,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 22:09:08,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:09:08,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:09:08,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:09:08,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:09:08,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 22:09:08,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:09:08,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:09:08,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:09:08,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:09:08,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:09:08,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:09:08,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:09:08,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:09:08,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:09:08,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:09:08,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:09:08,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:09:08,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:09:08,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:09:08,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:09:08,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2022-07-13 22:09:08,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:09:08,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:09:08,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:09:08,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:09:08,982 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:09:08,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-07-13 22:09:09,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa08dc3d/3ca36235c6a1497596397e5941d05e2b/FLAGb46ee8c31 [2022-07-13 22:09:09,340 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:09:09,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-07-13 22:09:09,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa08dc3d/3ca36235c6a1497596397e5941d05e2b/FLAGb46ee8c31 [2022-07-13 22:09:09,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa08dc3d/3ca36235c6a1497596397e5941d05e2b [2022-07-13 22:09:09,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:09:09,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:09:09,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:09:09,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:09:09,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:09:09,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:09:09" (1/1) ... [2022-07-13 22:09:09,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d89611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:09, skipping insertion in model container [2022-07-13 22:09:09,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:09:09" (1/1) ... [2022-07-13 22:09:09,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:09:09,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:09:10,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-07-13 22:09:10,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:09:10,033 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:09:10,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-07-13 22:09:10,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:09:10,066 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:09:10,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10 WrapperNode [2022-07-13 22:09:10,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:09:10,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:09:10,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:09:10,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:09:10,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,123 INFO L137 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-07-13 22:09:10,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:09:10,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:09:10,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:09:10,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:09:10,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:09:10,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:09:10,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:09:10,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:09:10,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (1/1) ... [2022-07-13 22:09:10,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:09:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:09:10,184 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) [2022-07-13 22:09:10,195 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 [2022-07-13 22:09:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-13 22:09:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-13 22:09:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-13 22:09:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-13 22:09:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-07-13 22:09:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-07-13 22:09:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-07-13 22:09:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-07-13 22:09:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-07-13 22:09:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 22:09:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 22:09:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:09:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:09:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:09:10,214 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 22:09:10,297 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:09:10,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:09:10,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:09:10,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:09:10,652 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 22:09:10,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:09:10 BoogieIcfgContainer [2022-07-13 22:09:10,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:09:10,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:09:10,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:09:10,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:09:10,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:09:09" (1/3) ... [2022-07-13 22:09:10,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3765ef3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:09:10, skipping insertion in model container [2022-07-13 22:09:10,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:09:10" (2/3) ... [2022-07-13 22:09:10,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3765ef3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:09:10, skipping insertion in model container [2022-07-13 22:09:10,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:09:10" (3/3) ... [2022-07-13 22:09:10,659 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-07-13 22:09:10,663 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 22:09:10,669 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:09:10,669 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:09:10,669 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 22:09:10,758 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-13 22:09:10,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 234 transitions, 532 flow [2022-07-13 22:09:10,880 INFO L129 PetriNetUnfolder]: 2/226 cut-off events. [2022-07-13 22:09:10,884 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-13 22:09:10,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 226 events. 2/226 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-07-13 22:09:10,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 234 transitions, 532 flow [2022-07-13 22:09:10,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 205 transitions, 458 flow [2022-07-13 22:09:10,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:09:10,914 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3152a3e2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b787e9c [2022-07-13 22:09:10,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-13 22:09:10,943 INFO L129 PetriNetUnfolder]: 2/204 cut-off events. [2022-07-13 22:09:10,944 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-13 22:09:10,944 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:09:10,945 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:09:10,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-07-13 22:09:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:09:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1838133696, now seen corresponding path program 1 times [2022-07-13 22:09:10,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:09:10,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805347273] [2022-07-13 22:09:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:09:10,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:09:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:09:11,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:09:11,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:09:11,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805347273] [2022-07-13 22:09:11,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805347273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:09:11,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:09:11,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:09:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944184456] [2022-07-13 22:09:11,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:09:11,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:09:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:09:11,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:09:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:09:11,955 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-07-13 22:09:11,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 205 transitions, 458 flow. Second operand has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 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) [2022-07-13 22:09:11,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:09:11,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-07-13 22:09:11,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand