./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/clever.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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 ../../../trunk/examples/svcomp/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 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 20:11:32,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 20:11:32,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 20:11:32,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 20:11:32,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 20:11:32,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 20:11:32,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 20:11:32,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 20:11:32,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 20:11:32,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 20:11:32,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 20:11:32,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 20:11:32,395 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 20:11:32,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 20:11:32,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 20:11:32,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 20:11:32,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 20:11:32,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 20:11:32,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 20:11:32,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 20:11:32,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 20:11:32,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 20:11:32,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 20:11:32,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 20:11:32,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 20:11:32,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 20:11:32,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 20:11:32,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 20:11:32,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 20:11:32,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 20:11:32,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:11:32,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 20:11:32,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 20:11:32,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 20:11:32,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 20:11:32,404 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 20:11:32,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 20:11:32,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 20:11:32,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 20:11:32,409 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 20:11:32,409 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 20:11:32,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b460e4dbdd0bf3097d690d1720c7a2141566e2aa4ca1ed003c7fa25661851d [2024-09-08 20:11:32,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 20:11:32,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 20:11:32,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 20:11:32,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 20:11:32,694 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 20:11:32,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/clever.wvr.c [2024-09-08 20:11:34,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 20:11:34,410 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 20:11:34,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c [2024-09-08 20:11:34,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cec99972b/f63af890061a49c7998747e2902bd41b/FLAG2cfeafd5c [2024-09-08 20:11:34,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cec99972b/f63af890061a49c7998747e2902bd41b [2024-09-08 20:11:34,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 20:11:34,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 20:11:34,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 20:11:34,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 20:11:34,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 20:11:34,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:11:34" (1/1) ... [2024-09-08 20:11:34,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2700238c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:34, skipping insertion in model container [2024-09-08 20:11:34,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:11:34" (1/1) ... [2024-09-08 20:11:34,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 20:11:34,978 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c[2159,2172] [2024-09-08 20:11:34,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:11:35,001 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 20:11:35,025 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c[2159,2172] [2024-09-08 20:11:35,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:11:35,044 INFO L204 MainTranslator]: Completed translation [2024-09-08 20:11:35,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35 WrapperNode [2024-09-08 20:11:35,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 20:11:35,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 20:11:35,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 20:11:35,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 20:11:35,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,083 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-09-08 20:11:35,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 20:11:35,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 20:11:35,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 20:11:35,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 20:11:35,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 20:11:35,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 20:11:35,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 20:11:35,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 20:11:35,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (1/1) ... [2024-09-08 20:11:35,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:11:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:35,190 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) [2024-09-08 20:11:35,195 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 [2024-09-08 20:11:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 20:11:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 20:11:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 20:11:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 20:11:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 20:11:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 20:11:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 20:11:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 20:11:35,252 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 20:11:35,372 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 20:11:35,374 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 20:11:35,574 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 20:11:35,574 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 20:11:35,754 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 20:11:35,755 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 20:11:35,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:11:35 BoogieIcfgContainer [2024-09-08 20:11:35,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 20:11:35,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 20:11:35,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 20:11:35,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 20:11:35,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:11:34" (1/3) ... [2024-09-08 20:11:35,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9f37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:11:35, skipping insertion in model container [2024-09-08 20:11:35,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:11:35" (2/3) ... [2024-09-08 20:11:35,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9f37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:11:35, skipping insertion in model container [2024-09-08 20:11:35,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:11:35" (3/3) ... [2024-09-08 20:11:35,766 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2024-09-08 20:11:35,782 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 20:11:35,782 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-08 20:11:35,783 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 20:11:35,829 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 20:11:35,875 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:11:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 20:11:35,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:35,879 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) [2024-09-08 20:11:35,881 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 [2024-09-08 20:11:35,911 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 20:11:35,922 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 20:11:35,927 INFO L336 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;@62cc927b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:11:35,927 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 20:11:36,020 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:36,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:36,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1431935946, now seen corresponding path program 1 times [2024-09-08 20:11:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:36,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231279465] [2024-09-08 20:11:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:36,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:11:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231279465] [2024-09-08 20:11:36,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231279465] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:36,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301538994] [2024-09-08 20:11:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:36,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:36,884 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) [2024-09-08 20:11:36,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 20:11:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:36,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 20:11:36,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:11:37,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:11:37,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301538994] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:37,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-09-08 20:11:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976534652] [2024-09-08 20:11:37,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:37,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 20:11:37,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 20:11:37,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-09-08 20:11:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:37,458 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:37,459 INFO L475 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) [2024-09-08 20:11:37,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:37,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 20:11:37,988 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-09-08 20:11:37,989 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:37,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2123088189, now seen corresponding path program 1 times [2024-09-08 20:11:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:37,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945638225] [2024-09-08 20:11:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:37,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:11:38,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:38,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945638225] [2024-09-08 20:11:38,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945638225] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:38,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359421920] [2024-09-08 20:11:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:38,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:38,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:38,111 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) [2024-09-08 20:11:38,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 20:11:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:38,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 20:11:38,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:11:38,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:11:38,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359421920] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:38,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:38,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-08 20:11:38,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507495918] [2024-09-08 20:11:38,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:38,331 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 20:11:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:38,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 20:11:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-08 20:11:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:38,333 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:38,334 INFO L475 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) [2024-09-08 20:11:38,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:38,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 20:11:38,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 20:11:38,673 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:38,674 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:38,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1304233248, now seen corresponding path program 2 times [2024-09-08 20:11:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092598931] [2024-09-08 20:11:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 20:11:38,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:38,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092598931] [2024-09-08 20:11:38,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092598931] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083858714] [2024-09-08 20:11:38,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 20:11:38,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:38,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:38,759 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) [2024-09-08 20:11:38,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 20:11:38,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 20:11:38,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:11:38,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 20:11:38,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:11:38,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:11:38,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083858714] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:38,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:38,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-09-08 20:11:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674073355] [2024-09-08 20:11:38,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:38,904 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-08 20:11:38,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:38,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-08 20:11:38,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-08 20:11:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:38,905 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:38,905 INFO L475 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) [2024-09-08 20:11:38,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:38,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 20:11:38,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:39,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 20:11:39,314 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:39,314 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:39,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:39,315 INFO L85 PathProgramCache]: Analyzing trace with hash -76409286, now seen corresponding path program 3 times [2024-09-08 20:11:39,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:39,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160806792] [2024-09-08 20:11:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 67 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 20:11:39,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:39,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160806792] [2024-09-08 20:11:39,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160806792] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:39,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875489134] [2024-09-08 20:11:39,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 20:11:39,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:39,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:39,610 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) [2024-09-08 20:11:39,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 20:11:39,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-08 20:11:39,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:11:39,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 20:11:39,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 111 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 20:11:40,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 67 proven. 58 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 20:11:40,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875489134] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:40,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:40,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 12] total 35 [2024-09-08 20:11:40,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320648777] [2024-09-08 20:11:40,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:40,264 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-08 20:11:40,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:40,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-08 20:11:40,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=946, Unknown=0, NotChecked=0, Total=1260 [2024-09-08 20:11:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:40,267 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:40,267 INFO L475 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) [2024-09-08 20:11:40,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:40,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:40,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:40,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-08 20:11:41,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 20:11:41,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:41,253 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:41,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1608925967, now seen corresponding path program 4 times [2024-09-08 20:11:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621954633] [2024-09-08 20:11:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:41,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 838 proven. 604 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-09-08 20:11:42,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621954633] [2024-09-08 20:11:42,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621954633] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948970080] [2024-09-08 20:11:42,443 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 20:11:42,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:42,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:42,447 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) [2024-09-08 20:11:42,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 20:11:42,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 20:11:42,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:11:42,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 20:11:42,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 668 proven. 53 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-09-08 20:11:42,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 665 proven. 56 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-09-08 20:11:43,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948970080] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:43,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:43,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 16] total 51 [2024-09-08 20:11:43,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321950128] [2024-09-08 20:11:43,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:43,270 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-08 20:11:43,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:43,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-08 20:11:43,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=2179, Unknown=0, NotChecked=0, Total=2550 [2024-09-08 20:11:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:43,276 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:43,276 INFO L475 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) [2024-09-08 20:11:43,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:43,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:43,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:43,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-09-08 20:11:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:45,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:45,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:45,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:11:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-08 20:11:45,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 20:11:45,371 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:45,372 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:45,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2096915557, now seen corresponding path program 5 times [2024-09-08 20:11:45,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:45,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169405986] [2024-09-08 20:11:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:45,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 4440 proven. 363 refuted. 0 times theorem prover too weak. 13803 trivial. 0 not checked. [2024-09-08 20:11:46,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:46,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169405986] [2024-09-08 20:11:46,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169405986] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:46,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788770632] [2024-09-08 20:11:46,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 20:11:46,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:46,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:46,850 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) [2024-09-08 20:11:46,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 20:11:47,264 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2024-09-08 20:11:47,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:11:47,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-08 20:11:47,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:11:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 8868 proven. 1615 refuted. 0 times theorem prover too weak. 8123 trivial. 0 not checked. [2024-09-08 20:11:47,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:11:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18606 backedges. 7958 proven. 2525 refuted. 0 times theorem prover too weak. 8123 trivial. 0 not checked. [2024-09-08 20:11:48,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788770632] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:11:48,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:11:48,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 35 [2024-09-08 20:11:48,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926555191] [2024-09-08 20:11:48,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:11:48,106 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-08 20:11:48,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:11:48,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-08 20:11:48,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2024-09-08 20:11:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:48,107 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:11:48,108 INFO L475 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) [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-09-08 20:11:48,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:11:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:11:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:11:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:11:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:11:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-08 20:11:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:11:48,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 20:11:48,711 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-08 20:11:48,712 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:11:48,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:11:48,713 INFO L85 PathProgramCache]: Analyzing trace with hash -671909168, now seen corresponding path program 6 times [2024-09-08 20:11:48,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:11:48,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921777661] [2024-09-08 20:11:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:11:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:11:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:11:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 4441 proven. 17052 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-09-08 20:11:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:11:54,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921777661] [2024-09-08 20:11:54,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921777661] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:11:54,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56261762] [2024-09-08 20:11:54,772 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 20:11:54,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:11:54,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:11:54,776 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) [2024-09-08 20:11:54,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 20:11:55,168 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2024-09-08 20:11:55,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:11:55,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-08 20:11:55,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:12:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 675 proven. 20823 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-09-08 20:12:01,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:12:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 22159 backedges. 4441 proven. 17052 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-09-08 20:12:04,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56261762] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:12:04,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:12:04,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 90, 80] total 234 [2024-09-08 20:12:04,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247371044] [2024-09-08 20:12:04,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:12:04,317 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 235 states [2024-09-08 20:12:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:12:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 235 interpolants. [2024-09-08 20:12:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14639, Invalid=40351, Unknown=0, NotChecked=0, Total=54990 [2024-09-08 20:12:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:12:04,344 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:12:04,345 INFO L475 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) [2024-09-08 20:12:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:12:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:12:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:12:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:12:04,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-09-08 20:12:04,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:12:04,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:12:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:12:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:12:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:12:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:12:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-09-08 20:12:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:12:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-09-08 20:12:17,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 20:12:17,276 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:12:17,277 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:12:17,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:12:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1732310439, now seen corresponding path program 7 times [2024-09-08 20:12:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:12:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889408362] [2024-09-08 20:12:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:12:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:12:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:13:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 857586 proven. 107788 refuted. 0 times theorem prover too weak. 11237 trivial. 0 not checked. [2024-09-08 20:13:18,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:13:18,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889408362] [2024-09-08 20:13:18,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889408362] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:13:18,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979359316] [2024-09-08 20:13:18,055 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 20:13:18,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:13:18,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:13:18,057 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) [2024-09-08 20:13:18,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 20:13:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:13:19,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 7516 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-09-08 20:13:19,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:13:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 112420 proven. 965 refuted. 0 times theorem prover too weak. 863226 trivial. 0 not checked. [2024-09-08 20:13:25,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:13:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 976611 backedges. 112409 proven. 976 refuted. 0 times theorem prover too weak. 863226 trivial. 0 not checked. [2024-09-08 20:13:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979359316] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:13:31,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:13:31,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 84, 84] total 293 [2024-09-08 20:13:31,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621905479] [2024-09-08 20:13:31,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:13:31,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2024-09-08 20:13:31,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:13:31,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2024-09-08 20:13:31,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16358, Invalid=69198, Unknown=0, NotChecked=0, Total=85556 [2024-09-08 20:13:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:13:31,632 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:13:31,633 INFO L475 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) [2024-09-08 20:13:31,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:13:31,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-09-08 20:13:31,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:13:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 416 states. [2024-09-08 20:13:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2024-09-08 20:13:56,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 20:13:56,993 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:13:56,993 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:13:56,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:13:56,995 INFO L85 PathProgramCache]: Analyzing trace with hash -899738170, now seen corresponding path program 8 times [2024-09-08 20:13:56,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:13:56,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193811389] [2024-09-08 20:13:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:13:56,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15