./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a849f68 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-25 17:03:50,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 17:03:50,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-25 17:03:50,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 17:03:50,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 17:03:50,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 17:03:50,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 17:03:50,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 17:03:50,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-25 17:03:50,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-25 17:03:50,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 17:03:50,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 17:03:50,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 17:03:50,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 17:03:50,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-25 17:03:50,826 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 17:03:50,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 17:03:50,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 17:03:50,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 17:03:50,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-25 17:03:50,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-25 17:03:50,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-25 17:03:50,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 17:03:50,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 17:03:50,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 17:03:50,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 17:03:50,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 17:03:50,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 17:03:50,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-25 17:03:50,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-25 17:03:50,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 17:03:50,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 17:03:50,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-25 17:03:50,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-25 17:03:50,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 17:03:50,833 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-25 17:03:50,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-25 17:03:50,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-25 17:03:50,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-25 17:03:50,834 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-25 17:03:50,834 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-25 17:03:50,835 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f [2024-10-25 17:03:51,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 17:03:51,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 17:03:51,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 17:03:51,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 17:03:51,123 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 17:03:51,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-25 17:03:52,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 17:03:52,610 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 17:03:52,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-10-25 17:03:52,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/013e2db96/af49be6100db4c86b7952ed78f1f656f/FLAG9c46a7c61 [2024-10-25 17:03:52,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/013e2db96/af49be6100db4c86b7952ed78f1f656f [2024-10-25 17:03:52,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 17:03:52,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 17:03:52,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 17:03:52,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 17:03:52,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 17:03:52,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8500f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52, skipping insertion in model container [2024-10-25 17:03:52,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 17:03:52,862 WARN L248 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-barrier-loop.wvr.c[6016,6029] [2024-10-25 17:03:52,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 17:03:52,873 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 17:03:52,900 WARN L248 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-barrier-loop.wvr.c[6016,6029] [2024-10-25 17:03:52,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 17:03:52,918 INFO L204 MainTranslator]: Completed translation [2024-10-25 17:03:52,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52 WrapperNode [2024-10-25 17:03:52,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 17:03:52,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 17:03:52,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 17:03:52,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 17:03:52,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,973 INFO L138 Inliner]: procedures = 24, calls = 90, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 267 [2024-10-25 17:03:52,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 17:03:52,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 17:03:52,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 17:03:52,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 17:03:52,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:52,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 17:03:53,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 17:03:53,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 17:03:53,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 17:03:53,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (1/1) ... [2024-10-25 17:03:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-25 17:03:53,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 17:03:53,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-25 17:03:53,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-25 17:03:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 17:03:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-25 17:03:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-25 17:03:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-25 17:03:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-25 17:03:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-25 17:03:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-25 17:03:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-25 17:03:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-25 17:03:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-25 17:03:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-25 17:03:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-25 17:03:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-25 17:03:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-25 17:03:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-25 17:03:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-25 17:03:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 17:03:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 17:03:53,112 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-25 17:03:53,243 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 17:03:53,244 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 17:03:53,575 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-25 17:03:53,575 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 17:03:53,793 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 17:03:53,793 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-25 17:03:53,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:03:53 BoogieIcfgContainer [2024-10-25 17:03:53,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 17:03:53,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-25 17:03:53,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-25 17:03:53,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-25 17:03:53,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 05:03:52" (1/3) ... [2024-10-25 17:03:53,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1792bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 05:03:53, skipping insertion in model container [2024-10-25 17:03:53,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:03:52" (2/3) ... [2024-10-25 17:03:53,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1792bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 05:03:53, skipping insertion in model container [2024-10-25 17:03:53,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:03:53" (3/3) ... [2024-10-25 17:03:53,803 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2024-10-25 17:03:53,817 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-25 17:03:53,818 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-25 17:03:53,818 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-25 17:03:53,899 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-25 17:03:53,937 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:53,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-25 17:03:53,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 17:03:53,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-25 17:03:53,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-25 17:03:53,973 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-25 17:03:53,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ======== [2024-10-25 17:03:53,989 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;@71b8ad71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:53,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-25 17:03:56,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-25 17:03:56,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-25 17:03:56,031 INFO L407 BasicCegarLoop]: Path program histogram: [] [2024-10-25 17:03:56,033 INFO L312 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (1/3) [2024-10-25 17:03:56,038 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:56,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-25 17:03:56,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 17:03:56,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-25 17:03:56,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-25 17:03:56,046 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-25 17:03:56,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-10-25 17:03:56,049 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;@71b8ad71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:56,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-25 17:03:57,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-25 17:03:57,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-25 17:03:57,331 INFO L407 BasicCegarLoop]: Path program histogram: [] [2024-10-25 17:03:57,332 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE (2/3) [2024-10-25 17:03:57,334 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-25 17:03:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-25 17:03:57,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-25 17:03:57,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-10-25 17:03:57,344 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-25 17:03:57,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-25 17:03:57,346 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;@71b8ad71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-25 17:03:57,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-25 17:03:58,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:58,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:58,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1944978665, now seen corresponding path program 1 times [2024-10-25 17:03:58,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:58,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690632858] [2024-10-25 17:03:58,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:03:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 17:03:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 17:03:58,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 17:03:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690632858] [2024-10-25 17:03:58,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690632858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 17:03:58,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 17:03:58,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-25 17:03:58,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051023418] [2024-10-25 17:03:58,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 17:03:58,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-25 17:03:58,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 17:03:58,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-25 17:03:58,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-25 17:03:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:58,533 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 17:03:58,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2024-10-25 17:03:58,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:58,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-25 17:03:58,619 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:58,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash 958813171, now seen corresponding path program 1 times [2024-10-25 17:03:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433928941] [2024-10-25 17:03:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:03:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 17:03:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 17:03:58,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 17:03:58,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433928941] [2024-10-25 17:03:58,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433928941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 17:03:58,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 17:03:58,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-25 17:03:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093968251] [2024-10-25 17:03:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 17:03:58,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-25 17:03:58,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 17:03:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 17:03:58,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 17:03:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:58,967 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 17:03:58,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2024-10-25 17:03:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-25 17:03:59,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:59,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1611008582, now seen corresponding path program 1 times [2024-10-25 17:03:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:59,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884638830] [2024-10-25 17:03:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:03:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 17:03:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 17:03:59,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 17:03:59,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884638830] [2024-10-25 17:03:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884638830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 17:03:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 17:03:59,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 17:03:59,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882602692] [2024-10-25 17:03:59,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 17:03:59,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-25 17:03:59,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 17:03:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 17:03:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 17:03:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,147 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 17:03:59,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-10-25 17:03:59,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-25 17:03:59,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:59,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:59,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1716215712, now seen corresponding path program 1 times [2024-10-25 17:03:59,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:59,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192772102] [2024-10-25 17:03:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:59,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:03:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 17:03:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 17:03:59,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 17:03:59,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192772102] [2024-10-25 17:03:59,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192772102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 17:03:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 17:03:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 17:03:59,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587582013] [2024-10-25 17:03:59,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 17:03:59,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-25 17:03:59,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 17:03:59,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 17:03:59,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 17:03:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,504 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 17:03:59,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-10-25 17:03:59,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-25 17:03:59,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:59,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:59,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1469896729, now seen corresponding path program 1 times [2024-10-25 17:03:59,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:59,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686204841] [2024-10-25 17:03:59,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:59,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:03:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 17:03:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-25 17:03:59,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 17:03:59,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686204841] [2024-10-25 17:03:59,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686204841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 17:03:59,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 17:03:59,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 17:03:59,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253556179] [2024-10-25 17:03:59,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 17:03:59,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-25 17:03:59,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 17:03:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 17:03:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 17:03:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,859 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-25 17:03:59,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-10-25 17:03:59,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-25 17:03:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 17:03:59,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-25 17:03:59,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-25 17:03:59,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 17:03:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 595705129, now seen corresponding path program 2 times [2024-10-25 17:03:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 17:03:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245462574] [2024-10-25 17:03:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 17:03:59,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 17:04:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 17:04:00,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 17:04:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 17:04:00,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 17:04:00,099 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-25 17:04:00,099 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-25 17:04:00,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-25 17:04:00,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-25 17:04:00,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-25 17:04:00,101 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-10-25 17:04:00,103 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (3/3) [2024-10-25 17:04:00,216 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-25 17:04:00,217 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-25 17:04:00,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 05:04:00 BasicIcfg [2024-10-25 17:04:00,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-25 17:04:00,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-25 17:04:00,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-25 17:04:00,222 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-25 17:04:00,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:03:53" (3/4) ... [2024-10-25 17:04:00,223 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-25 17:04:00,348 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-25 17:04:00,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-25 17:04:00,348 INFO L158 Benchmark]: Toolchain (without parser) took 7714.48ms. Allocated memory was 186.6MB in the beginning and 276.8MB in the end (delta: 90.2MB). Free memory was 147.4MB in the beginning and 217.6MB in the end (delta: -70.2MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,349 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 17:04:00,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.42ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 133.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.57ms. Allocated memory is still 186.6MB. Free memory was 133.2MB in the beginning and 130.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,350 INFO L158 Benchmark]: Boogie Preprocessor took 49.01ms. Allocated memory is still 186.6MB. Free memory was 130.7MB in the beginning and 129.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,350 INFO L158 Benchmark]: RCFGBuilder took 770.76ms. Allocated memory is still 186.6MB. Free memory was 129.2MB in the beginning and 103.3MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,350 INFO L158 Benchmark]: TraceAbstraction took 6424.20ms. Allocated memory was 186.6MB in the beginning and 276.8MB in the end (delta: 90.2MB). Free memory was 102.6MB in the beginning and 95.4MB in the end (delta: 7.3MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,350 INFO L158 Benchmark]: Witness Printer took 127.47ms. Allocated memory is still 276.8MB. Free memory was 95.4MB in the beginning and 217.6MB in the end (delta: -122.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-25 17:04:00,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.42ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 133.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.57ms. Allocated memory is still 186.6MB. Free memory was 133.2MB in the beginning and 130.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.01ms. Allocated memory is still 186.6MB. Free memory was 130.7MB in the beginning and 129.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.76ms. Allocated memory is still 186.6MB. Free memory was 129.2MB in the beginning and 103.3MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6424.20ms. Allocated memory was 186.6MB in the beginning and 276.8MB in the end (delta: 90.2MB). Free memory was 102.6MB in the beginning and 95.4MB in the end (delta: 7.3MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. * Witness Printer took 127.47ms. Allocated memory is still 276.8MB. Free memory was 95.4MB in the beginning and 217.6MB in the end (delta: -122.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11849, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 648, dependent conditional: 596, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 0, independent unconditional: 11201, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 0, independent unconditional: 11201, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5323, independent: 5271, independent conditional: 0, independent unconditional: 5271, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5323, independent: 5262, independent conditional: 0, independent unconditional: 5262, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1612, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 1289, dependent conditional: 0, dependent unconditional: 1289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11268, independent: 5930, independent conditional: 0, independent unconditional: 5930, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 5323, unknown conditional: 0, unknown unconditional: 5323] , Statistics on independence cache: Total cache size (in pairs): 5323, Positive cache size: 5271, Positive conditional cache size: 0, Positive unconditional cache size: 5271, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5685, Maximal queried relation: 0, Independence queries for same thread: 581, Persistent sets #1 benchmarks: Persistent set computation time: 1.8s, Number of persistent set computation: 444, Number of trivial persistent sets: 18, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5583, independent: 5531, independent conditional: 0, independent unconditional: 5531, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11849, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 648, dependent conditional: 596, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 5670, independent unconditional: 5531, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 0, independent unconditional: 11201, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11268, independent: 11201, independent conditional: 0, independent unconditional: 11201, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5323, independent: 5271, independent conditional: 0, independent unconditional: 5271, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5323, independent: 5262, independent conditional: 0, independent unconditional: 5262, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1612, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 1289, dependent conditional: 0, dependent unconditional: 1289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11268, independent: 5930, independent conditional: 0, independent unconditional: 5930, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 5323, unknown conditional: 0, unknown unconditional: 5323] , Statistics on independence cache: Total cache size (in pairs): 5323, Positive cache size: 5271, Positive conditional cache size: 0, Positive unconditional cache size: 5271, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5685, Maximal queried relation: 0, Independence queries for same thread: 581 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7338, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 271, dependent conditional: 219, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 0, independent unconditional: 7067, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 0, independent unconditional: 7067, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5163, independent: 5111, independent conditional: 0, independent unconditional: 5111, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5163, independent: 5102, independent conditional: 0, independent unconditional: 5102, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1187, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 984, dependent conditional: 0, dependent unconditional: 984, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7134, independent: 1956, independent conditional: 0, independent unconditional: 1956, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 5163, unknown conditional: 0, unknown unconditional: 5163] , Statistics on independence cache: Total cache size (in pairs): 5163, Positive cache size: 5111, Positive conditional cache size: 0, Positive unconditional cache size: 5111, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1811, Maximal queried relation: 0, Independence queries for same thread: 204, Persistent sets #1 benchmarks: Persistent set computation time: 1.2s, Number of persistent set computation: 141, Number of trivial persistent sets: 6, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5323, independent: 5271, independent conditional: 0, independent unconditional: 5271, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7338, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 271, dependent conditional: 219, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 1796, independent unconditional: 5271, dependent: 67, dependent conditional: 15, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 0, independent unconditional: 7067, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7134, independent: 7067, independent conditional: 0, independent unconditional: 7067, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5163, independent: 5111, independent conditional: 0, independent unconditional: 5111, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5163, independent: 5102, independent conditional: 0, independent unconditional: 5102, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1187, independent: 203, independent conditional: 0, independent unconditional: 203, dependent: 984, dependent conditional: 0, dependent unconditional: 984, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7134, independent: 1956, independent conditional: 0, independent unconditional: 1956, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 5163, unknown conditional: 0, unknown unconditional: 5163] , Statistics on independence cache: Total cache size (in pairs): 5163, Positive cache size: 5111, Positive conditional cache size: 0, Positive unconditional cache size: 5111, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1811, Maximal queried relation: 0, Independence queries for same thread: 204 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8768, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 533, dependent conditional: 487, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8301, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 66, dependent conditional: 20, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8301, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 66, dependent conditional: 20, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 90, dependent conditional: 44, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 0, independent unconditional: 8235, dependent: 90, dependent conditional: 8, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 0, independent unconditional: 8235, dependent: 90, dependent conditional: 8, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6288, independent: 6238, independent conditional: 0, independent unconditional: 6238, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6288, independent: 6225, independent conditional: 0, independent unconditional: 6225, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1106, independent: 212, independent conditional: 0, independent unconditional: 212, dependent: 894, dependent conditional: 20, dependent unconditional: 873, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8325, independent: 1997, independent conditional: 0, independent unconditional: 1997, dependent: 40, dependent conditional: 4, dependent unconditional: 36, unknown: 6288, unknown conditional: 4, unknown unconditional: 6284] , Statistics on independence cache: Total cache size (in pairs): 6288, Positive cache size: 6238, Positive conditional cache size: 0, Positive unconditional cache size: 6238, Negative cache size: 50, Negative conditional cache size: 4, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1656, Maximal queried relation: 2, Independence queries for same thread: 467, Persistent sets #1 benchmarks: Persistent set computation time: 1.1s, Number of persistent set computation: 136, Number of trivial persistent sets: 130, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6661, independent: 6615, independent conditional: 0, independent unconditional: 6615, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8768, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 533, dependent conditional: 487, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8301, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 66, dependent conditional: 20, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8301, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 66, dependent conditional: 20, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 1620, independent unconditional: 6615, dependent: 90, dependent conditional: 44, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 0, independent unconditional: 8235, dependent: 90, dependent conditional: 8, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8325, independent: 8235, independent conditional: 0, independent unconditional: 8235, dependent: 90, dependent conditional: 8, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6288, independent: 6238, independent conditional: 0, independent unconditional: 6238, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6288, independent: 6225, independent conditional: 0, independent unconditional: 6225, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 50, dependent conditional: 4, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1106, independent: 212, independent conditional: 0, independent unconditional: 212, dependent: 894, dependent conditional: 20, dependent unconditional: 873, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8325, independent: 1997, independent conditional: 0, independent unconditional: 1997, dependent: 40, dependent conditional: 4, dependent unconditional: 36, unknown: 6288, unknown conditional: 4, unknown unconditional: 6284] , Statistics on independence cache: Total cache size (in pairs): 6288, Positive cache size: 6238, Positive conditional cache size: 0, Positive unconditional cache size: 6238, Negative cache size: 50, Negative conditional cache size: 4, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1656, Maximal queried relation: 2, Independence queries for same thread: 467 - CounterExampleResult [Line: 241]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] 0 unsigned int x_0, y_1, x_8, y_9; [L39] 0 _Bool f1_2, f2_3, f1_10, f2_11; [L40] 0 unsigned int temp_4, temp_5, temp_6, temp_7, temp_12, temp_13, temp_14, temp_15; [L212] 0 pthread_t t1, t4; [L215] 0 x_0 = __VERIFIER_nondet_uint() [L216] 0 y_1 = __VERIFIER_nondet_uint() [L217] 0 x_8 = __VERIFIER_nondet_uint() [L218] 0 y_9 = __VERIFIER_nondet_uint() [L219] 0 temp_4 = __VERIFIER_nondet_uint() [L220] 0 temp_5 = __VERIFIER_nondet_uint() [L221] 0 temp_6 = __VERIFIER_nondet_uint() [L222] 0 temp_7 = __VERIFIER_nondet_uint() [L223] 0 temp_12 = __VERIFIER_nondet_uint() [L224] 0 temp_13 = __VERIFIER_nondet_uint() [L225] 0 temp_14 = __VERIFIER_nondet_uint() [L226] 0 temp_15 = __VERIFIER_nondet_uint() [L227] 0 f1_2 = __VERIFIER_nondet_bool() [L228] 0 f2_3 = __VERIFIER_nondet_bool() [L229] 0 f1_10 = __VERIFIER_nondet_bool() [L230] 0 f2_11 = __VERIFIER_nondet_bool() [L233] CALL 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L35] COND FALSE 0 !(!cond) [L233] RET 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L235] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(_argptr)={0:0}, f1_10=1, f1_2=1, f2_11=0, f2_3=1, t1=-5, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L112] 1 pthread_t t2, t3; VAL [\old(_argptr)={0:0}, _argptr={0:0}, f1_10=1, f1_2=1, f2_11=0, f2_3=1, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L115] 1 f1_2 = 0 [L116] 1 f2_3 = 0 VAL [\old(_argptr)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L119] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\old(_argptr)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L120] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\old(_argptr)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L236] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L196] 4 pthread_t t5, t6; VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L199] 4 f1_10 = 0 [L200] 4 f2_11 = 0 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L203] FCALL, FORK 4 pthread_create(&t5, 0, thread5, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L204] FCALL, FORK 4 pthread_create(&t6, 0, thread6, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L44] COND FALSE 2 !(__VERIFIER_nondet_bool()) [L74] 2 return 0; [L121] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L78] COND FALSE 3 !(__VERIFIER_nondet_bool()) [L108] 3 return 0; [L122] FCALL, JOIN 3 pthread_join(t3, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L124] 1 return 0; [L237] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L128] COND TRUE 5 __VERIFIER_nondet_bool() [L130] 5 temp_12 = x_8 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, x_0=0, x_8=0, y_1=4294967295, y_9=-1] [L133] 5 x_8 = temp_12 + 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, x_0=0, x_8=1, y_1=4294967295, y_9=-1] [L137] 5 f1_10 = 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, x_0=0, x_8=1, y_1=4294967295, y_9=-1] [L162] COND TRUE 6 __VERIFIER_nondet_bool() [L164] 6 temp_14 = y_9 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=-1] [L167] 6 y_9 = temp_14 + 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=0] [L171] 6 f2_11 = 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=0] [L140] CALL 5 assume_abort_if_not(f2_11) [L35] COND FALSE 5 !(!cond) [L140] RET 5 assume_abort_if_not(f2_11) [L144] 5 temp_13 = y_9 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=0] [L147] 5 y_9 = temp_13 + 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=1, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=1] [L174] CALL 6 assume_abort_if_not(f1_10) [L35] COND FALSE 6 !(!cond) [L174] RET 6 assume_abort_if_not(f1_10) [L151] 5 f1_10 = 0 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, x_0=0, x_8=1, y_1=4294967295, y_9=1] [L178] 6 temp_15 = x_8 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=1, y_1=4294967295, y_9=1] [L181] 6 x_8 = temp_15 + 1 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=1, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] [L185] 6 f2_11 = 0 VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] [L154] CALL 5 assume_abort_if_not(!f2_11) [L35] COND FALSE 5 !(!cond) [L154] RET 5 assume_abort_if_not(!f2_11) [L188] CALL 6 assume_abort_if_not(!f1_10) [L35] COND FALSE 6 !(!cond) [L188] RET 6 assume_abort_if_not(!f1_10) [L128] COND FALSE 5 !(__VERIFIER_nondet_bool()) [L158] 5 return 0; [L205] FCALL, JOIN 5 pthread_join(t5, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] [L162] COND FALSE 6 !(__VERIFIER_nondet_bool()) [L192] 6 return 0; [L206] FCALL, JOIN 6 pthread_join(t6, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t2=-4, t3=-3, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] [L208] 4 return 0; [L238] FCALL, JOIN 4 pthread_join(t4, 0) VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] [L240] CALL 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L35] COND FALSE 0 !(!cond) [L240] RET 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L241] 0 reach_error() VAL [\old(_argptr)={0:0}, \old(_argptr)={0:0}, \result={0:0}, \result={0:0}, _argptr={0:0}, _argptr={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1=-5, t2=-4, t3=-3, t4=-2, t5=-1, t6=0, temp_12=0, temp_13=0, temp_14=-1, temp_15=1, x_0=0, x_8=2, y_1=4294967295, y_9=1] - UnprovableResult [Line: 236]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 235]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread4Thread1of1ForFork3 with 1 thread instances CFG has 13 procedures, 169 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 2.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork1 with 1 thread instances CFG has 13 procedures, 169 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 1.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 169 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-25 17:04:00,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2024-10-25 17:04:00,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-10-25 17:04:00,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-25 17:04:00,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE