./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/clever.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b03bd7cf Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/clever.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1b460e4dbdd0bf3097d690d1720c7a2141566e2aa4ca1ed003c7fa25661851d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-28 19:23:04,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-28 19:23:04,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-28 19:23:04,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-28 19:23:04,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-28 19:23:04,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-28 19:23:04,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-28 19:23:04,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-28 19:23:04,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-28 19:23:04,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-28 19:23:04,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-28 19:23:04,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-28 19:23:04,401 INFO L153 SettingsManager]: * Use SBE=true [2024-10-28 19:23:04,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-28 19:23:04,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-28 19:23:04,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-28 19:23:04,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-28 19:23:04,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-28 19:23:04,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-28 19:23:04,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-28 19:23:04,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-28 19:23:04,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-28 19:23:04,408 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-28 19:23:04,408 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-28 19:23:04,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-28 19:23:04,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-28 19:23:04,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-28 19:23:04,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-28 19:23:04,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-28 19:23:04,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-28 19:23:04,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 19:23:04,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-28 19:23:04,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-28 19:23:04,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-28 19:23:04,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-28 19:23:04,414 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-28 19:23:04,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-28 19:23:04,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-28 19:23:04,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-28 19:23:04,415 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-28 19:23:04,417 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-28 19:23:04,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b460e4dbdd0bf3097d690d1720c7a2141566e2aa4ca1ed003c7fa25661851d [2024-10-28 19:23:04,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-28 19:23:04,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-28 19:23:04,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-28 19:23:04,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-28 19:23:04,721 INFO L274 PluginConnector]: CDTParser initialized [2024-10-28 19:23:04,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/clever.wvr.c [2024-10-28 19:23:06,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-28 19:23:06,401 INFO L384 CDTParser]: Found 1 translation units. [2024-10-28 19:23:06,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/clever.wvr.c [2024-10-28 19:23:06,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/22f32a70b/2e5e541514b74d6e8727198c0b70e498/FLAG49af633ab [2024-10-28 19:23:06,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/22f32a70b/2e5e541514b74d6e8727198c0b70e498 [2024-10-28 19:23:06,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-28 19:23:06,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-28 19:23:06,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-28 19:23:06,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-28 19:23:06,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-28 19:23:06,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:23:06" (1/1) ... [2024-10-28 19:23:06,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a83d9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:06, skipping insertion in model container [2024-10-28 19:23:06,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:23:06" (1/1) ... [2024-10-28 19:23:06,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-28 19:23:07,047 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/clever.wvr.c[2159,2172] [2024-10-28 19:23:07,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 19:23:07,064 INFO L200 MainTranslator]: Completed pre-run [2024-10-28 19:23:07,086 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/clever.wvr.c[2159,2172] [2024-10-28 19:23:07,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 19:23:07,109 INFO L204 MainTranslator]: Completed translation [2024-10-28 19:23:07,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07 WrapperNode [2024-10-28 19:23:07,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-28 19:23:07,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-28 19:23:07,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-28 19:23:07,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-28 19:23:07,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,139 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-10-28 19:23:07,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-28 19:23:07,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-28 19:23:07,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-28 19:23:07,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-28 19:23:07,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-28 19:23:07,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-28 19:23:07,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-28 19:23:07,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-28 19:23:07,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (1/1) ... [2024-10-28 19:23:07,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 19:23:07,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:07,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-28 19:23:07,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-28 19:23:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-28 19:23:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-28 19:23:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-28 19:23:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-28 19:23:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-28 19:23:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-28 19:23:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-28 19:23:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-28 19:23:07,249 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-28 19:23:07,329 INFO L238 CfgBuilder]: Building ICFG [2024-10-28 19:23:07,332 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-28 19:23:07,518 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-28 19:23:07,518 INFO L287 CfgBuilder]: Performing block encoding [2024-10-28 19:23:07,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-28 19:23:07,721 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-28 19:23:07,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:23:07 BoogieIcfgContainer [2024-10-28 19:23:07,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-28 19:23:07,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-28 19:23:07,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-28 19:23:07,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-28 19:23:07,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:23:06" (1/3) ... [2024-10-28 19:23:07,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d5e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:23:07, skipping insertion in model container [2024-10-28 19:23:07,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:23:07" (2/3) ... [2024-10-28 19:23:07,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d5e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:23:07, skipping insertion in model container [2024-10-28 19:23:07,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:23:07" (3/3) ... [2024-10-28 19:23:07,732 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2024-10-28 19:23:07,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-28 19:23:07,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-28 19:23:07,745 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-28 19:23:07,776 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-28 19:23:07,817 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 19:23:07,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-28 19:23:07,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:07,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-28 19:23:07,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-28 19:23:07,845 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-28 19:23:07,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-28 19:23:07,862 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54da057a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 19:23:07,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-28 19:23:08,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:08,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:08,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1431935946, now seen corresponding path program 1 times [2024-10-28 19:23:08,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:08,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920205491] [2024-10-28 19:23:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:08,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 19:23:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920205491] [2024-10-28 19:23:08,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920205491] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008343725] [2024-10-28 19:23:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:08,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:08,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:08,987 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) [2024-10-28 19:23:08,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-28 19:23:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:09,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-28 19:23:09,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 19:23:09,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 19:23:09,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008343725] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:09,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:09,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-10-28 19:23:09,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727863750] [2024-10-28 19:23:09,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:09,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-28 19:23:09,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:09,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-28 19:23:09,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-28 19:23:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:09,534 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:09,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:09,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:09,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:09,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-28 19:23:10,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-28 19:23:10,010 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:10,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:10,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2123088189, now seen corresponding path program 1 times [2024-10-28 19:23:10,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:10,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41066781] [2024-10-28 19:23:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:10,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-28 19:23:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41066781] [2024-10-28 19:23:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41066781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932980699] [2024-10-28 19:23:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:10,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:10,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:10,096 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) [2024-10-28 19:23:10,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-28 19:23:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:10,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-28 19:23:10,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-28 19:23:10,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-28 19:23:10,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932980699] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:10,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:10,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-28 19:23:10,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375804716] [2024-10-28 19:23:10,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:10,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-28 19:23:10,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:10,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-28 19:23:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-28 19:23:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:10,321 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:10,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:10,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:10,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-28 19:23:10,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-28 19:23:10,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:10,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:10,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1304233248, now seen corresponding path program 2 times [2024-10-28 19:23:10,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:10,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152178482] [2024-10-28 19:23:10,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:10,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-28 19:23:10,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:10,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152178482] [2024-10-28 19:23:10,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152178482] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992866911] [2024-10-28 19:23:10,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-28 19:23:10,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:10,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:10,757 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) [2024-10-28 19:23:10,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-28 19:23:10,819 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-28 19:23:10,819 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 19:23:10,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-28 19:23:10,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 19:23:10,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 19:23:10,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992866911] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:10,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:10,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-10-28 19:23:10,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952265567] [2024-10-28 19:23:10,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:10,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-28 19:23:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:10,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-28 19:23:10,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-28 19:23:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:10,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:10,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:10,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:10,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-28 19:23:10,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:11,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-28 19:23:11,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:11,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:11,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash -76409286, now seen corresponding path program 3 times [2024-10-28 19:23:11,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:11,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288196470] [2024-10-28 19:23:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:11,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 67 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-28 19:23:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:11,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288196470] [2024-10-28 19:23:11,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288196470] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:11,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576898259] [2024-10-28 19:23:11,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-28 19:23:11,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:11,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:11,657 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) [2024-10-28 19:23:11,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-28 19:23:11,736 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-10-28 19:23:11,736 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 19:23:11,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-28 19:23:11,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 111 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-28 19:23:12,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 67 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-28 19:23:12,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576898259] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:12,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:12,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 12] total 35 [2024-10-28 19:23:12,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82417123] [2024-10-28 19:23:12,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:12,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-28 19:23:12,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-28 19:23:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=946, Unknown=0, NotChecked=0, Total=1260 [2024-10-28 19:23:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:12,311 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:12,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.75) internal successors, (99), 35 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:12,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:12,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:12,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:12,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-10-28 19:23:13,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-28 19:23:13,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:13,264 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:13,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1608925967, now seen corresponding path program 4 times [2024-10-28 19:23:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:13,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382652330] [2024-10-28 19:23:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 838 proven. 604 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-10-28 19:23:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382652330] [2024-10-28 19:23:14,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382652330] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836596474] [2024-10-28 19:23:14,313 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-28 19:23:14,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:14,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:14,315 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) [2024-10-28 19:23:14,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-28 19:23:14,406 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-28 19:23:14,406 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 19:23:14,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-28 19:23:14,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 668 proven. 53 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-10-28 19:23:14,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 665 proven. 56 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-10-28 19:23:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836596474] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:15,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:15,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 16] total 51 [2024-10-28 19:23:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733743417] [2024-10-28 19:23:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:15,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-28 19:23:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-28 19:23:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=2179, Unknown=0, NotChecked=0, Total=2550 [2024-10-28 19:23:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:15,023 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:15,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 51 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:15,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:15,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:15,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:15,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-10-28 19:23:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:23:16,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-10-28 19:23:16,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-28 19:23:16,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:16,881 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:16,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2096915557, now seen corresponding path program 5 times [2024-10-28 19:23:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:16,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506456327] [2024-10-28 19:23:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 4440 proven. 363 refuted. 0 times theorem prover too weak. 13803 trivial. 0 not checked. [2024-10-28 19:23:18,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506456327] [2024-10-28 19:23:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506456327] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:18,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813418414] [2024-10-28 19:23:18,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-28 19:23:18,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:18,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:18,316 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) [2024-10-28 19:23:18,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-28 19:23:18,688 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2024-10-28 19:23:18,689 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 19:23:18,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-28 19:23:18,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 8868 proven. 1615 refuted. 0 times theorem prover too weak. 8123 trivial. 0 not checked. [2024-10-28 19:23:19,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 7958 proven. 2525 refuted. 0 times theorem prover too weak. 8123 trivial. 0 not checked. [2024-10-28 19:23:19,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813418414] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:19,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:19,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 35 [2024-10-28 19:23:19,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676947962] [2024-10-28 19:23:19,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:19,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-28 19:23:19,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:19,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-28 19:23:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2024-10-28 19:23:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:19,411 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:19,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 35 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-10-28 19:23:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:23:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-10-28 19:23:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-28 19:23:19,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-28 19:23:20,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-28 19:23:20,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:20,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash -671909168, now seen corresponding path program 6 times [2024-10-28 19:23:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274555629] [2024-10-28 19:23:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:23:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:23:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 4441 proven. 17052 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-10-28 19:23:25,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:23:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274555629] [2024-10-28 19:23:25,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274555629] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:23:25,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734022305] [2024-10-28 19:23:25,695 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-28 19:23:25,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:25,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:23:25,697 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) [2024-10-28 19:23:25,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-28 19:23:26,074 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2024-10-28 19:23:26,074 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-28 19:23:26,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-10-28 19:23:26,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:23:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 675 proven. 20823 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-10-28 19:23:31,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:23:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 4441 proven. 17052 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-10-28 19:23:34,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734022305] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:23:34,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:23:34,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 90, 80] total 234 [2024-10-28 19:23:34,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344096967] [2024-10-28 19:23:34,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:23:34,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 235 states [2024-10-28 19:23:34,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:23:34,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 235 interpolants. [2024-10-28 19:23:34,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14639, Invalid=40351, Unknown=0, NotChecked=0, Total=54990 [2024-10-28 19:23:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:34,700 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:23:34,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 235 states, 235 states have (on average 2.2595744680851064) internal successors, (531), 234 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-28 19:23:34,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:23:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-28 19:23:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-10-28 19:23:47,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-28 19:23:47,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:23:47,933 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:23:47,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:23:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1732310439, now seen corresponding path program 7 times [2024-10-28 19:23:47,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:23:47,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935558441] [2024-10-28 19:23:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:23:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 19:24:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:24:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 857586 proven. 107788 refuted. 0 times theorem prover too weak. 11237 trivial. 0 not checked. [2024-10-28 19:24:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 19:24:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935558441] [2024-10-28 19:24:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935558441] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-28 19:24:49,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284399556] [2024-10-28 19:24:49,588 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-28 19:24:49,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:24:49,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 19:24:49,590 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-28 19:24:49,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-28 19:24:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 19:24:50,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 7516 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-10-28 19:24:50,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-28 19:24:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 112420 proven. 965 refuted. 0 times theorem prover too weak. 863226 trivial. 0 not checked. [2024-10-28 19:24:56,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-28 19:25:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 112409 proven. 976 refuted. 0 times theorem prover too weak. 863226 trivial. 0 not checked. [2024-10-28 19:25:02,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284399556] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-28 19:25:02,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-28 19:25:02,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 84, 84] total 293 [2024-10-28 19:25:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817693746] [2024-10-28 19:25:02,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-28 19:25:02,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2024-10-28 19:25:02,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 19:25:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2024-10-28 19:25:02,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16358, Invalid=69198, Unknown=0, NotChecked=0, Total=85556 [2024-10-28 19:25:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:25:02,790 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 19:25:02,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 293 states, 293 states have (on average 2.3412969283276452) internal successors, (686), 293 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 19:25:02,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:25:02,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:25:02,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:25:02,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:25:02,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-10-28 19:25:02,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-28 19:25:02,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-10-28 19:25:02,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-10-28 19:25:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-28 19:25:27,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 416 states. [2024-10-28 19:25:27,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2024-10-28 19:25:27,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-28 19:25:27,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-28 19:25:27,475 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 19:25:27,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 19:25:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash -899738170, now seen corresponding path program 8 times [2024-10-28 19:25:27,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 19:25:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159663621] [2024-10-28 19:25:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 19:25:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15