./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.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 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 02:09:58,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 02:09:58,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 02:09:58,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 02:09:58,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 02:09:58,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 02:09:58,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 02:09:58,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 02:09:58,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 02:09:58,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 02:09:58,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 02:09:58,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 02:09:58,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 02:09:58,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 02:09:58,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 02:09:58,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 02:09:58,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 02:09:58,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 02:09:58,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 02:09:58,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 02:09:58,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 02:09:58,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 02:09:58,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 02:09:58,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 02:09:58,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 02:09:58,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 02:09:58,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 02:09:58,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 02:09:58,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 02:09:58,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 02:09:58,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 02:09:58,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 02:09:58,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 02:09:58,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 02:09:58,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 02:09:58,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 02:09:58,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 02:09:58,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 02:09:58,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 02:09:58,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 02:09:58,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 02:09:58,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 02:09:58,829 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 02:09:58,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 02:09:58,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 02:09:58,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 02:09:58,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 02:09:58,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 02:09:58,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 02:09:58,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 02:09:58,833 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 02:09:58,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 02:09:58,834 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 02:09:58,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 02:09:58,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 02:09:58,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 02:09:58,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 02:09:58,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 02:09:58,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 02:09:58,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 02:09:58,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 02:09:58,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 02:09:58,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 02:09:58,838 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 02:09:58,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 02:09:58,838 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 02:09:58,838 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 02:09:59,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 02:09:59,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 02:09:59,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 02:09:59,151 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 02:09:59,152 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 02:09:59,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-08-31 02:10:00,235 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 02:10:00,411 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 02:10:00,412 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-08-31 02:10:00,422 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee2153ce/489ff58464064a69a02dfa2cd9fd7dbf/FLAGc78820eda [2023-08-31 02:10:00,436 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee2153ce/489ff58464064a69a02dfa2cd9fd7dbf [2023-08-31 02:10:00,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 02:10:00,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 02:10:00,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 02:10:00,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 02:10:00,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 02:10:00,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd21cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00, skipping insertion in model container [2023-08-31 02:10:00,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 02:10:00,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 02:10:00,564 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2023-08-31 02:10:00,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 02:10:00,574 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 02:10:00,594 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2023-08-31 02:10:00,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 02:10:00,600 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 02:10:00,600 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 02:10:00,604 INFO L208 MainTranslator]: Completed translation [2023-08-31 02:10:00,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00 WrapperNode [2023-08-31 02:10:00,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 02:10:00,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 02:10:00,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 02:10:00,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 02:10:00,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,633 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 329 [2023-08-31 02:10:00,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 02:10:00,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 02:10:00,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 02:10:00,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 02:10:00,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 02:10:00,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 02:10:00,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 02:10:00,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 02:10:00,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (1/1) ... [2023-08-31 02:10:00,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 02:10:00,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 02:10:00,708 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) [2023-08-31 02:10:00,732 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 [2023-08-31 02:10:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 02:10:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 02:10:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 02:10:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 02:10:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 02:10:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 02:10:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 02:10:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 02:10:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 02:10:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 02:10:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-31 02:10:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-31 02:10:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 02:10:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-31 02:10:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-08-31 02:10:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-08-31 02:10:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 02:10:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 02:10:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 02:10:00,749 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 02:10:00,904 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 02:10:00,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 02:10:01,290 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 02:10:01,367 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 02:10:01,367 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 02:10:01,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:10:01 BoogieIcfgContainer [2023-08-31 02:10:01,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 02:10:01,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 02:10:01,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 02:10:01,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 02:10:01,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 02:10:00" (1/3) ... [2023-08-31 02:10:01,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cce634c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 02:10:01, skipping insertion in model container [2023-08-31 02:10:01,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:10:00" (2/3) ... [2023-08-31 02:10:01,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cce634c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 02:10:01, skipping insertion in model container [2023-08-31 02:10:01,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:10:01" (3/3) ... [2023-08-31 02:10:01,382 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2023-08-31 02:10:01,388 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 02:10:01,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 02:10:01,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 02:10:01,394 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 02:10:01,471 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-08-31 02:10:01,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 215 transitions, 486 flow [2023-08-31 02:10:01,579 INFO L130 PetriNetUnfolder]: 2/208 cut-off events. [2023-08-31 02:10:01,580 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 02:10:01,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 208 events. 2/208 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-31 02:10:01,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 215 transitions, 486 flow [2023-08-31 02:10:01,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 190 transitions, 422 flow [2023-08-31 02:10:01,595 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 02:10:01,603 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 190 transitions, 422 flow [2023-08-31 02:10:01,605 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 190 transitions, 422 flow [2023-08-31 02:10:01,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 190 transitions, 422 flow [2023-08-31 02:10:01,648 INFO L130 PetriNetUnfolder]: 2/190 cut-off events. [2023-08-31 02:10:01,648 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 02:10:01,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 190 events. 2/190 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-31 02:10:01,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 4182 [2023-08-31 02:10:09,330 INFO L134 LiptonReduction]: Checked pairs total: 23079 [2023-08-31 02:10:09,331 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-08-31 02:10:09,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 02:10:09,367 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58cf2f33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 02:10:09,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-31 02:10:09,378 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2023-08-31 02:10:09,378 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-31 02:10:09,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 02:10:09,382 INFO L208 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] [2023-08-31 02:10:09,382 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 5 more)] === [2023-08-31 02:10:09,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 02:10:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2043048233, now seen corresponding path program 1 times [2023-08-31 02:10:09,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 02:10:09,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125682573] [2023-08-31 02:10:09,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 02:10:09,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 02:10:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 02:10:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 02:10:11,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 02:10:11,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125682573] [2023-08-31 02:10:11,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125682573] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 02:10:11,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 02:10:11,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 02:10:11,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132446174] [2023-08-31 02:10:11,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 02:10:11,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 02:10:11,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 02:10:11,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 02:10:11,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-31 02:10:11,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 357 [2023-08-31 02:10:11,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 58 transitions, 158 flow. Second operand has 8 states, 8 states have (on average 166.25) internal successors, (1330), 8 states have internal predecessors, (1330), 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) [2023-08-31 02:10:11,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 02:10:11,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 357 [2023-08-31 02:10:11,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand