./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 42d87675 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/pthread-C-DAC/pthread-demo-datarace-1.i -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 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 00:22:16,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 00:22:16,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 00:22:16,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 00:22:16,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 00:22:16,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 00:22:16,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 00:22:16,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 00:22:16,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 00:22:16,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 00:22:16,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 00:22:16,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 00:22:16,112 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 00:22:16,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 00:22:16,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 00:22:16,114 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 00:22:16,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 00:22:16,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 00:22:16,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 00:22:16,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 00:22:16,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 00:22:16,116 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 00:22:16,116 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 00:22:16,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-04-25 00:22:16,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 00:22:16,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 00:22:16,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 00:22:16,351 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-25 00:22:16,351 INFO L274 PluginConnector]: CDTParser initialized [2025-04-25 00:22:16,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-04-25 00:22:17,674 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9a7ff83b2/25147f5379d244f181ccdfa2d3ed1846/FLAG63f4177f2 [2025-04-25 00:22:17,910 INFO L389 CDTParser]: Found 1 translation units. [2025-04-25 00:22:17,910 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-04-25 00:22:17,923 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9a7ff83b2/25147f5379d244f181ccdfa2d3ed1846/FLAG63f4177f2 [2025-04-25 00:22:18,675 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9a7ff83b2/25147f5379d244f181ccdfa2d3ed1846 [2025-04-25 00:22:18,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 00:22:18,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-25 00:22:18,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-25 00:22:18,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-25 00:22:18,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-25 00:22:18,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 12:22:18" (1/1) ... [2025-04-25 00:22:18,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571c85df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:18, skipping insertion in model container [2025-04-25 00:22:18,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 12:22:18" (1/1) ... [2025-04-25 00:22:18,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-25 00:22:18,883 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2025-04-25 00:22:19,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 00:22:19,127 INFO L200 MainTranslator]: Completed pre-run [2025-04-25 00:22:19,146 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2025-04-25 00:22:19,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 00:22:19,252 INFO L204 MainTranslator]: Completed translation [2025-04-25 00:22:19,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19 WrapperNode [2025-04-25 00:22:19,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-25 00:22:19,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 00:22:19,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 00:22:19,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 00:22:19,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,294 INFO L138 Inliner]: procedures = 364, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2025-04-25 00:22:19,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 00:22:19,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 00:22:19,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 00:22:19,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 00:22:19,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,306 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 00:22:19,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 00:22:19,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 00:22:19,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 00:22:19,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (1/1) ... [2025-04-25 00:22:19,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 00:22:19,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:19,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 00:22:19,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 00:22:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-25 00:22:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-25 00:22:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-25 00:22:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2025-04-25 00:22:19,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2025-04-25 00:22:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-25 00:22:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 00:22:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 00:22:19,359 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 00:22:19,469 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 00:22:19,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 00:22:19,610 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 00:22:19,610 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 00:22:19,701 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 00:22:19,702 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 00:22:19,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 12:22:19 BoogieIcfgContainer [2025-04-25 00:22:19,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 00:22:19,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 00:22:19,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 00:22:19,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 00:22:19,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.04 12:22:18" (1/3) ... [2025-04-25 00:22:19,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a6f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 12:22:19, skipping insertion in model container [2025-04-25 00:22:19,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 12:22:19" (2/3) ... [2025-04-25 00:22:19,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a6f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 12:22:19, skipping insertion in model container [2025-04-25 00:22:19,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 12:22:19" (3/3) ... [2025-04-25 00:22:19,710 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2025-04-25 00:22:19,721 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 00:22:19,722 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-1.i that has 2 procedures, 22 locations, 23 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-25 00:22:19,722 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 00:22:19,763 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-25 00:22:19,808 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 00:22:19,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 00:22:19,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:19,812 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) [2025-04-25 00:22:19,813 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 [2025-04-25 00:22:19,875 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 00:22:19,880 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 00:22:19,886 INFO L340 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;@6ad97c56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 00:22:19,887 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-25 00:22:19,905 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:19,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:19,909 INFO L85 PathProgramCache]: Analyzing trace with hash -543277899, now seen corresponding path program 1 times [2025-04-25 00:22:19,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:19,914 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478121082] [2025-04-25 00:22:19,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 00:22:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:19,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-25 00:22:20,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 00:22:20,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 00:22:20,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:20,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:20,122 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478121082] [2025-04-25 00:22:20,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478121082] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 00:22:20,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 00:22:20,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 00:22:20,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284773944] [2025-04-25 00:22:20,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 00:22:20,127 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 00:22:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:20,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 00:22:20,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 00:22:20,144 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:20,145 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:20,146 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-04-25 00:22:20,146 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:20,208 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:20,208 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 00:22:20,209 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:20,209 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash -167581484, now seen corresponding path program 1 times [2025-04-25 00:22:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:20,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247519976] [2025-04-25 00:22:20,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 00:22:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:20,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-25 00:22:20,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 00:22:20,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 00:22:20,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:20,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:20,348 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247519976] [2025-04-25 00:22:20,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247519976] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:20,348 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731015719] [2025-04-25 00:22:20,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 00:22:20,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:20,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:20,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:20,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-25 00:22:20,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-25 00:22:20,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 00:22:20,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 00:22:20,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:20,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-25 00:22:20,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:20,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:20,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731015719] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:20,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-25 00:22:20,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501314651] [2025-04-25 00:22:20,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:20,530 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-25 00:22:20,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:20,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-25 00:22:20,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-25 00:22:20,531 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:20,532 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:20,532 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2025-04-25 00:22:20,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:20,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:20,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:20,634 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:20,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-25 00:22:20,838 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-25 00:22:20,838 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:20,838 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:20,838 INFO L85 PathProgramCache]: Analyzing trace with hash 355372209, now seen corresponding path program 2 times [2025-04-25 00:22:20,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:20,839 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980259309] [2025-04-25 00:22:20,839 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 00:22:20,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:20,862 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-04-25 00:22:20,887 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-04-25 00:22:20,887 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 00:22:20,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:21,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:21,082 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980259309] [2025-04-25 00:22:21,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980259309] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:21,083 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069741898] [2025-04-25 00:22:21,083 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 00:22:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:21,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:21,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-25 00:22:21,145 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 2 equivalence classes. [2025-04-25 00:22:21,177 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-04-25 00:22:21,177 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 00:22:21,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:21,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 00:22:21,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:21,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:21,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069741898] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:21,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:21,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2025-04-25 00:22:21,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968461223] [2025-04-25 00:22:21,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:21,419 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-25 00:22:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:21,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-25 00:22:21,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2025-04-25 00:22:21,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:21,420 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:21,420 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.052631578947368) internal successors, (153), 19 states have internal predecessors, (153), 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) [2025-04-25 00:22:21,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:21,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:21,421 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:21,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:21,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:21,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:21,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-25 00:22:21,873 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:21,873 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:21,873 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:21,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1729369584, now seen corresponding path program 3 times [2025-04-25 00:22:21,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:21,874 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167375245] [2025-04-25 00:22:21,874 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 00:22:21,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:21,895 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 7 equivalence classes. [2025-04-25 00:22:21,923 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 90 of 95 statements. [2025-04-25 00:22:21,923 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-25 00:22:21,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-25 00:22:22,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:22,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167375245] [2025-04-25 00:22:22,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167375245] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:22,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791094912] [2025-04-25 00:22:22,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 00:22:22,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:22,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:22,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:22,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-25 00:22:22,146 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 7 equivalence classes. [2025-04-25 00:22:22,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 90 of 95 statements. [2025-04-25 00:22:22,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-25 00:22:22,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:22,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 00:22:22,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-25 00:22:22,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-25 00:22:22,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791094912] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:22,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:22,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-04-25 00:22:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134922579] [2025-04-25 00:22:22,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:22,400 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-25 00:22:22,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:22,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-25 00:22:22,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2025-04-25 00:22:22,401 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:22,401 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:22,401 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.2) internal successors, (138), 15 states have internal predecessors, (138), 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) [2025-04-25 00:22:22,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:22,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:22,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:22,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:22,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:22,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:22,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:22,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:22,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-25 00:22:22,773 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:22,774 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:22,774 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:22,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1413032105, now seen corresponding path program 4 times [2025-04-25 00:22:22,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:22,774 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476314030] [2025-04-25 00:22:22,774 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 00:22:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:22,792 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 135 statements into 2 equivalence classes. [2025-04-25 00:22:22,826 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 135 of 135 statements. [2025-04-25 00:22:22,826 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 00:22:22,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:23,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:23,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476314030] [2025-04-25 00:22:23,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476314030] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:23,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481639355] [2025-04-25 00:22:23,166 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 00:22:23,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:23,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:23,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-25 00:22:23,236 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 135 statements into 2 equivalence classes. [2025-04-25 00:22:23,323 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 135 of 135 statements. [2025-04-25 00:22:23,324 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-25 00:22:23,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:23,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-25 00:22:23,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:23,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:23,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481639355] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:23,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:23,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 22 [2025-04-25 00:22:23,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025859716] [2025-04-25 00:22:23,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:23,741 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-25 00:22:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:23,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-25 00:22:23,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2025-04-25 00:22:23,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:23,742 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:23,742 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.409090909090908) internal successors, (207), 22 states have internal predecessors, (207), 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) [2025-04-25 00:22:23,742 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:23,742 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:23,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:23,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:23,743 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:23,971 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:23,972 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:23,972 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:23,972 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:23,973 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:23,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-25 00:22:24,173 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:24,174 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:24,175 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -606006111, now seen corresponding path program 5 times [2025-04-25 00:22:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:24,175 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109458973] [2025-04-25 00:22:24,175 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 00:22:24,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:24,202 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 215 statements into 21 equivalence classes. [2025-04-25 00:22:24,295 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) and asserted 215 of 215 statements. [2025-04-25 00:22:24,300 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2025-04-25 00:22:24,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 2020 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:24,966 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109458973] [2025-04-25 00:22:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109458973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 00:22:24,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 00:22:24,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-04-25 00:22:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580707322] [2025-04-25 00:22:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 00:22:24,967 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-25 00:22:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:24,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-25 00:22:24,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-04-25 00:22:24,968 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:24,968 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:24,968 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.347826086956522) internal successors, (215), 23 states have internal predecessors, (215), 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) [2025-04-25 00:22:24,968 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:24,968 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:24,968 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:24,968 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:24,968 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:24,969 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:25,372 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:25,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:25,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:25,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:25,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:25,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:25,373 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-25 00:22:25,373 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:25,374 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:25,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2007654064, now seen corresponding path program 6 times [2025-04-25 00:22:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:25,374 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093633337] [2025-04-25 00:22:25,374 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 00:22:25,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:25,399 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 210 statements into 21 equivalence classes. [2025-04-25 00:22:25,468 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 210 of 210 statements. [2025-04-25 00:22:25,469 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-04-25 00:22:25,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:27,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:27,478 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093633337] [2025-04-25 00:22:27,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093633337] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:27,478 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983877482] [2025-04-25 00:22:27,478 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 00:22:27,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:27,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:27,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:27,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-25 00:22:27,570 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 210 statements into 21 equivalence classes. [2025-04-25 00:22:27,793 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 210 of 210 statements. [2025-04-25 00:22:27,793 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-04-25 00:22:27,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:27,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 128 conjuncts are in the unsatisfiable core [2025-04-25 00:22:27,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:28,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 0 proven. 1920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:28,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983877482] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:28,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:28,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 44 [2025-04-25 00:22:28,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028981370] [2025-04-25 00:22:28,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:28,269 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-04-25 00:22:28,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:28,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-04-25 00:22:28,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2025-04-25 00:22:28,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:28,272 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:28,272 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.711111111111111) internal successors, (212), 44 states have internal predecessors, (212), 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) [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:28,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:30,451 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:30,452 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-25 00:22:30,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-25 00:22:30,652 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:30,652 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:30,653 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1347504666, now seen corresponding path program 7 times [2025-04-25 00:22:30,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:30,653 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036998760] [2025-04-25 00:22:30,653 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 00:22:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:30,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-25 00:22:30,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-25 00:22:30,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 00:22:30,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1730 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:31,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:31,175 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036998760] [2025-04-25 00:22:31,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036998760] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:31,176 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554695884] [2025-04-25 00:22:31,176 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 00:22:31,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:31,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:31,178 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:31,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-25 00:22:31,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-25 00:22:31,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-25 00:22:31,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 00:22:31,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:31,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-04-25 00:22:31,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1921 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 00:22:31,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-25 00:22:31,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554695884] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 00:22:31,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-25 00:22:31,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2025-04-25 00:22:31,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160250022] [2025-04-25 00:22:31,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 00:22:31,549 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-25 00:22:31,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:31,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-25 00:22:31,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2025-04-25 00:22:31,553 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:31,553 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:31,553 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.347826086956522) internal successors, (215), 23 states have internal predecessors, (215), 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) [2025-04-25 00:22:31,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:31,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:31,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:31,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:31,554 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:31,554 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:31,554 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-25 00:22:31,554 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:32,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:32,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-25 00:22:32,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:32,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-25 00:22:32,283 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-04-25 00:22:32,284 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 00:22:32,284 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 00:22:32,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1683294713, now seen corresponding path program 8 times [2025-04-25 00:22:32,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 00:22:32,284 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399720765] [2025-04-25 00:22:32,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 00:22:32,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 00:22:32,303 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 205 statements into 2 equivalence classes. [2025-04-25 00:22:32,315 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 205 of 205 statements. [2025-04-25 00:22:32,315 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 00:22:32,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 00:22:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 00:22:32,797 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399720765] [2025-04-25 00:22:32,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399720765] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 00:22:32,797 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012925005] [2025-04-25 00:22:32,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 00:22:32,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:32,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 00:22:32,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 00:22:32,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-25 00:22:32,906 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 205 statements into 2 equivalence classes. [2025-04-25 00:22:32,971 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 205 of 205 statements. [2025-04-25 00:22:32,971 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 00:22:32,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 00:22:32,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-04-25 00:22:32,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 00:22:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 00:22:33,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 00:22:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 1729 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 00:22:33,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012925005] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 00:22:33,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 00:22:33,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 23 [2025-04-25 00:22:33,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474053676] [2025-04-25 00:22:33,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 00:22:33,466 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-25 00:22:33,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 00:22:33,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-25 00:22:33,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-04-25 00:22:33,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:33,467 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 00:22:33,467 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.217391304347826) internal successors, (212), 23 states have internal predecessors, (212), 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) [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:33,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 00:22:36,419 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 00:22:36,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-25 00:22:36,422 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-25 00:22:36,423 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-25 00:22:36,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-25 00:22:36,623 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 00:22:36,626 INFO L422 BasicCegarLoop]: Path program histogram: [8, 1] [2025-04-25 00:22:36,628 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 00:22:36,628 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 00:22:36,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 00:22:36,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 12:22:36 BasicIcfg [2025-04-25 00:22:36,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 00:22:36,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-25 00:22:36,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-25 00:22:36,637 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-25 00:22:36,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 12:22:19" (3/4) ... [2025-04-25 00:22:36,639 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-25 00:22:36,641 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2025-04-25 00:22:36,643 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2025-04-25 00:22:36,643 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-04-25 00:22:36,643 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-25 00:22:36,643 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-25 00:22:36,698 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-25 00:22:36,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-25 00:22:36,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-25 00:22:36,723 INFO L158 Benchmark]: Toolchain (without parser) took 18044.28ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 110.9MB in the beginning and 348.2MB in the end (delta: -237.3MB). Peak memory consumption was 241.8MB. Max. memory is 16.1GB. [2025-04-25 00:22:36,723 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 00:22:36,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.21ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 70.7MB in the end (delta: 39.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-25 00:22:36,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.21ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 00:22:36,723 INFO L158 Benchmark]: Boogie Preprocessor took 16.34ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 67.1MB in the end (delta: 984.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 00:22:36,723 INFO L158 Benchmark]: RCFGBuilder took 389.92ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 45.0MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-25 00:22:36,724 INFO L158 Benchmark]: TraceAbstraction took 16932.60ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 44.5MB in the beginning and 139.8MB in the end (delta: -95.2MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. [2025-04-25 00:22:36,724 INFO L158 Benchmark]: Witness Printer took 85.49ms. Allocated memory is still 402.7MB. Free memory was 139.8MB in the beginning and 348.2MB in the end (delta: -208.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2025-04-25 00:22:36,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.21ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 70.7MB in the end (delta: 39.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.21ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 68.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.34ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 67.1MB in the end (delta: 984.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.92ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 45.0MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16932.60ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 44.5MB in the beginning and 139.8MB in the end (delta: -95.2MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. * Witness Printer took 85.49ms. Allocated memory is still 402.7MB. Free memory was 139.8MB in the beginning and 348.2MB in the end (delta: -208.4MB). Peak memory consumption was 11.2MB. 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: 38558, independent: 31190, independent conditional: 31190, independent unconditional: 0, dependent: 7368, dependent conditional: 7368, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33439, independent: 31190, independent conditional: 0, independent unconditional: 31190, dependent: 2249, dependent conditional: 0, dependent unconditional: 2249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 85, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 85, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 33439, independent: 31111, independent conditional: 0, independent unconditional: 31111, dependent: 2243, dependent conditional: 0, dependent unconditional: 2243, unknown: 85, unknown conditional: 0, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 5119 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 30 locations, 33 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 6.9s, 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: 236, 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: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2110 NumberOfCodeBlocks, 2100 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 2813 ConstructedInterpolants, 0 QuantifiedInterpolants, 7911 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4013 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 5917/19911 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-25 00:22:36,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE