./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 1f73d82f Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 12:10:50,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 12:10:50,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 12:10:50,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 12:10:50,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 12:10:50,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 12:10:50,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 12:10:50,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 12:10:50,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 12:10:50,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 12:10:50,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 12:10:50,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 12:10:50,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 12:10:50,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 12:10:50,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 12:10:50,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 12:10:50,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 12:10:50,504 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 12:10:50,504 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 12:10:50,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> GemCutter 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 -> 9053cd9eb87a8824d68da81e817a5c2746c138459aecfddcec40af107177afcb [2024-11-21 12:10:50,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 12:10:50,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 12:10:50,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 12:10:50,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 12:10:50,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 12:10:50,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-11-21 12:10:52,175 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/67dde7a08/63b5d09c868f4b9684e7c6c61a7474cf/FLAGc9767f226 [2024-11-21 12:10:52,401 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 12:10:52,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2024-11-21 12:10:52,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/67dde7a08/63b5d09c868f4b9684e7c6c61a7474cf/FLAGc9767f226 [2024-11-21 12:10:52,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/67dde7a08/63b5d09c868f4b9684e7c6c61a7474cf [2024-11-21 12:10:52,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 12:10:52,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 12:10:52,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 12:10:52,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 12:10:52,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 12:10:52,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb0bbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52, skipping insertion in model container [2024-11-21 12:10:52,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 12:10:52,632 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[3446,3459] [2024-11-21 12:10:52,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 12:10:52,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 12:10:52,688 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[3446,3459] [2024-11-21 12:10:52,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 12:10:52,705 INFO L204 MainTranslator]: Completed translation [2024-11-21 12:10:52,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52 WrapperNode [2024-11-21 12:10:52,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 12:10:52,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 12:10:52,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 12:10:52,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 12:10:52,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,749 INFO L138 Inliner]: procedures = 24, calls = 24, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 300 [2024-11-21 12:10:52,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 12:10:52,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 12:10:52,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 12:10:52,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 12:10:52,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,771 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 12:10:52,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 12:10:52,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 12:10:52,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 12:10:52,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (1/1) ... [2024-11-21 12:10:52,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 12:10:52,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:10:52,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 12:10:52,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 12:10:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 12:10:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 12:10:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 12:10:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 12:10:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 12:10:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-21 12:10:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-21 12:10:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-21 12:10:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-21 12:10:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 12:10:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-21 12:10:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-21 12:10:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-21 12:10:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-21 12:10:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-11-21 12:10:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-11-21 12:10:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2024-11-21 12:10:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2024-11-21 12:10:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 12:10:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 12:10:52,846 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 12:10:52,964 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 12:10:52,966 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 12:10:53,334 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 12:10:53,334 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 12:10:53,585 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 12:10:53,586 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-21 12:10:53,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:10:53 BoogieIcfgContainer [2024-11-21 12:10:53,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 12:10:53,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 12:10:53,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 12:10:53,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 12:10:53,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:10:52" (1/3) ... [2024-11-21 12:10:53,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dfb64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:10:53, skipping insertion in model container [2024-11-21 12:10:53,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:10:52" (2/3) ... [2024-11-21 12:10:53,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dfb64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:10:53, skipping insertion in model container [2024-11-21 12:10:53,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:10:53" (3/3) ... [2024-11-21 12:10:53,595 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2024-11-21 12:10:53,608 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 12:10:53,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-8.wvr.c that has 9 procedures, 101 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-21 12:10:53,610 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 12:10:53,736 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-21 12:10:53,788 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 12:10:53,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 12:10:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:10:53,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 12:10:53,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 12:10:53,913 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 12:10:53,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 12:10:53,935 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7d05bde1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 12:10:53,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-21 12:10:55,817 INFO L396 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)] === [2024-11-21 12:10:55,817 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:10:55,818 INFO L139 ounterexampleChecker]: Examining path program with hash -290574698, occurence #1 [2024-11-21 12:10:55,818 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:10:55,818 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:10:55,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:10:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1133292303, now seen corresponding path program 1 times [2024-11-21 12:10:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 12:10:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062259541] [2024-11-21 12:10:55,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:10:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 12:10:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:10:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:10:56,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 12:10:56,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062259541] [2024-11-21 12:10:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062259541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:10:56,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:10:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 12:10:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684744523] [2024-11-21 12:10:56,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:10:56,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:10:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 12:10:56,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:10:56,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:10:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:10:56,283 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:10:56,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-21 12:10:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:10:56,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:10:56,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 12:10:56,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-21 12:10:56,421 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:10:56,421 INFO L139 ounterexampleChecker]: Examining path program with hash 361907662, occurence #1 [2024-11-21 12:10:56,421 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:10:56,421 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:10:56,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:10:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1985105118, now seen corresponding path program 1 times [2024-11-21 12:10:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 12:10:56,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193346332] [2024-11-21 12:10:56,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:10:56,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 12:10:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:10:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:10:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 12:10:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193346332] [2024-11-21 12:10:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193346332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:10:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:10:56,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 12:10:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192245700] [2024-11-21 12:10:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:10:56,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:10:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 12:10:56,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:10:56,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:10:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:10:56,680 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:10:56,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-21 12:10:56,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:10:56,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.