/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-06 03:49:17,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-06 03:49:17,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-06 03:49:17,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-06 03:49:17,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-06 03:49:17,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-06 03:49:17,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-06 03:49:17,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-06 03:49:17,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-06 03:49:17,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-06 03:49:17,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-06 03:49:17,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-06 03:49:17,506 INFO L153 SettingsManager]: * Use SBE=true [2024-05-06 03:49:17,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-06 03:49:17,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-06 03:49:17,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-06 03:49:17,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-06 03:49:17,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-06 03:49:17,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-06 03:49:17,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-06 03:49:17,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-06 03:49:17,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-06 03:49:17,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-06 03:49:17,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-06 03:49:17,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-06 03:49:17,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-06 03:49:17,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-06 03:49:17,510 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-06 03:49:17,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-06 03:49:17,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-06 03:49:17,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-06 03:49:17,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-06 03:49:17,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-06 03:49:17,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-06 03:49:17,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT [2024-05-06 03:49:17,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-06 03:49:17,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-06 03:49:17,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-06 03:49:17,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-06 03:49:17,768 INFO L274 PluginConnector]: CDTParser initialized [2024-05-06 03:49:17,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-06 03:49:18,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-06 03:49:18,938 INFO L384 CDTParser]: Found 1 translation units. [2024-05-06 03:49:18,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-06 03:49:18,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2f308d639/a49a15b8c48144e8860597ab014ac4a5/FLAG3d02e76f4 [2024-05-06 03:49:18,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2f308d639/a49a15b8c48144e8860597ab014ac4a5 [2024-05-06 03:49:18,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-06 03:49:18,957 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-06 03:49:18,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-06 03:49:18,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-06 03:49:18,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-06 03:49:18,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 03:49:18" (1/1) ... [2024-05-06 03:49:18,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4471a95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:18, skipping insertion in model container [2024-05-06 03:49:18,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 03:49:18" (1/1) ... [2024-05-06 03:49:18,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-06 03:49:19,094 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2681,2694] [2024-05-06 03:49:19,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-06 03:49:19,106 INFO L202 MainTranslator]: Completed pre-run [2024-05-06 03:49:19,125 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c[2681,2694] [2024-05-06 03:49:19,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-06 03:49:19,133 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-05-06 03:49:19,133 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-05-06 03:49:19,138 INFO L206 MainTranslator]: Completed translation [2024-05-06 03:49:19,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19 WrapperNode [2024-05-06 03:49:19,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-06 03:49:19,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-06 03:49:19,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-06 03:49:19,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-06 03:49:19,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,167 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 201 [2024-05-06 03:49:19,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-06 03:49:19,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-06 03:49:19,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-06 03:49:19,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-06 03:49:19,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-06 03:49:19,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-06 03:49:19,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-06 03:49:19,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-06 03:49:19,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (1/1) ... [2024-05-06 03:49:19,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-06 03:49:19,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:49:19,222 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) [2024-05-06 03:49:19,227 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 [2024-05-06 03:49:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-06 03:49:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-06 03:49:19,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-06 03:49:19,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-06 03:49:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-06 03:49:19,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-06 03:49:19,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-06 03:49:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-06 03:49:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-06 03:49:19,258 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-06 03:49:19,329 INFO L241 CfgBuilder]: Building ICFG [2024-05-06 03:49:19,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-06 03:49:19,671 INFO L282 CfgBuilder]: Performing block encoding [2024-05-06 03:49:19,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-06 03:49:19,792 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-06 03:49:19,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 03:49:19 BoogieIcfgContainer [2024-05-06 03:49:19,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-06 03:49:19,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-06 03:49:19,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-06 03:49:19,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-06 03:49:19,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 03:49:18" (1/3) ... [2024-05-06 03:49:19,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773422b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 03:49:19, skipping insertion in model container [2024-05-06 03:49:19,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 03:49:19" (2/3) ... [2024-05-06 03:49:19,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773422b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 03:49:19, skipping insertion in model container [2024-05-06 03:49:19,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 03:49:19" (3/3) ... [2024-05-06 03:49:19,799 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-05-06 03:49:19,804 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-06 03:49:19,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-06 03:49:19,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-06 03:49:19,812 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-06 03:49:19,870 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-06 03:49:19,912 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-06 03:49:19,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-06 03:49:19,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:49:19,914 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) [2024-05-06 03:49:19,922 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 [2024-05-06 03:49:19,949 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-06 03:49:19,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:49:19,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-06 03:49:19,963 INFO L357 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, mHoare=true, 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;@5b96937a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-06 03:49:19,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-06 03:49:20,413 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:20,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 121 [2024-05-06 03:49:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1506279985, now seen corresponding path program 1 times [2024-05-06 03:49:23,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-06 03:49:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:23,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-06 03:49:23,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-06 03:49:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-06 03:49:23,708 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:23,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 118 [2024-05-06 03:49:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash -546165230, now seen corresponding path program 1 times [2024-05-06 03:49:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:26,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-06 03:49:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-06 03:49:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-06 03:49:26,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-05-06 03:49:26,955 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:26,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 121 [2024-05-06 03:49:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1870937576, now seen corresponding path program 1 times [2024-05-06 03:49:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:29,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-06 03:49:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:29,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-06 03:49:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-06 03:49:29,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-05-06 03:49:29,991 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:29,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 118 [2024-05-06 03:49:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -295808147, now seen corresponding path program 1 times [2024-05-06 03:49:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-06 03:49:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:34,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-06 03:49:34,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:49:34,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:49:34,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1523536138, now seen corresponding path program 1 times [2024-05-06 03:49:34,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:49:34,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886232497] [2024-05-06 03:49:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:34,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-06 03:49:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:49:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886232497] [2024-05-06 03:49:34,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886232497] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:49:34,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063567019] [2024-05-06 03:49:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:34,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:49:34,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:49:34,625 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) [2024-05-06 03:49:34,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-06 03:49:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:34,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-06 03:49:34,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:49:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-06 03:49:34,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:49:34,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-05-06 03:49:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-06 03:49:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063567019] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:49:35,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:49:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 20 [2024-05-06 03:49:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341585003] [2024-05-06 03:49:35,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:49:35,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-06 03:49:35,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:49:35,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-06 03:49:35,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-05-06 03:49:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:35,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:49:35,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.5) internal successors, (190), 20 states have internal predecessors, (190), 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) [2024-05-06 03:49:35,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:35,597 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-06 03:49:35,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 92 [2024-05-06 03:49:35,766 INFO L85 PathProgramCache]: Analyzing trace with hash -920053313, now seen corresponding path program 2 times [2024-05-06 03:49:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:35,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:35,987 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:35,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 113 [2024-05-06 03:49:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1464304803, now seen corresponding path program 3 times [2024-05-06 03:49:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:38,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:49:38,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-06 03:49:38,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2024-05-06 03:49:38,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:49:38,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:49:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1961042676, now seen corresponding path program 2 times [2024-05-06 03:49:38,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:49:38,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436561640] [2024-05-06 03:49:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:38,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-06 03:49:39,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:49:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436561640] [2024-05-06 03:49:39,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436561640] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:49:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020293415] [2024-05-06 03:49:39,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-06 03:49:39,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:49:39,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:49:39,098 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) [2024-05-06 03:49:39,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-06 03:49:39,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-06 03:49:39,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:49:39,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-06 03:49:39,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:49:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-06 03:49:39,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:49:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-05-06 03:49:39,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020293415] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:49:39,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:49:39,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 8] total 23 [2024-05-06 03:49:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80330855] [2024-05-06 03:49:39,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:49:39,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-05-06 03:49:39,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:49:39,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-05-06 03:49:39,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2024-05-06 03:49:39,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:39,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:49:39,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.782608695652174) internal successors, (202), 23 states have internal predecessors, (202), 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) [2024-05-06 03:49:39,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:49:39,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:40,388 INFO L349 Elim1Store]: treesize reduction 9, result has 87.7 percent of original size [2024-05-06 03:49:40,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 100 [2024-05-06 03:49:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash -234392552, now seen corresponding path program 4 times [2024-05-06 03:49:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-06 03:49:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:40,830 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-06 03:49:41,072 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:41,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 121 [2024-05-06 03:49:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash 555068779, now seen corresponding path program 5 times [2024-05-06 03:49:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:43,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:43,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:43,983 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:43,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 116 [2024-05-06 03:49:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1394102917, now seen corresponding path program 6 times [2024-05-06 03:49:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:47,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:47,366 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:47,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 116 [2024-05-06 03:49:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash 819128093, now seen corresponding path program 7 times [2024-05-06 03:49:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:49,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:49,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:49:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:49:50,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-06 03:49:50,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2024-05-06 03:49:50,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:49:50,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:49:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1954960646, now seen corresponding path program 3 times [2024-05-06 03:49:50,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:49:50,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918212618] [2024-05-06 03:49:50,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:50,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:49:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-05-06 03:49:50,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:49:50,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918212618] [2024-05-06 03:49:50,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918212618] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:49:50,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096554640] [2024-05-06 03:49:50,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-06 03:49:50,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:49:50,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:49:50,762 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) [2024-05-06 03:49:50,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-06 03:49:50,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-05-06 03:49:50,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:49:50,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 23 conjunts are in the unsatisfiable core [2024-05-06 03:49:50,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:49:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-05-06 03:49:51,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:49:51,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-05-06 03:49:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-05-06 03:49:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096554640] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:49:51,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:49:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2024-05-06 03:49:51,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377800987] [2024-05-06 03:49:51,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:49:51,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-05-06 03:49:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:49:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-05-06 03:49:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-05-06 03:49:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:51,341 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:49:51,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.052631578947368) internal successors, (191), 19 states have internal predecessors, (191), 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) [2024-05-06 03:49:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:49:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:49:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:49:51,778 INFO L349 Elim1Store]: treesize reduction 9, result has 87.7 percent of original size [2024-05-06 03:49:51,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 105 [2024-05-06 03:49:51,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1140675427, now seen corresponding path program 8 times [2024-05-06 03:49:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:51,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:51,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:52,151 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:52,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 118 [2024-05-06 03:49:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 746712768, now seen corresponding path program 9 times [2024-05-06 03:49:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:54,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:55,076 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:55,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 121 [2024-05-06 03:49:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 121151056, now seen corresponding path program 10 times [2024-05-06 03:49:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:49:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:49:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:57,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:49:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:49:57,990 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:49:57,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 121 [2024-05-06 03:50:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1398680562, now seen corresponding path program 11 times [2024-05-06 03:50:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:00,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:00,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:50:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:50:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:50:00,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-06 03:50:00,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-05-06 03:50:00,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:50:00,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:50:00,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1962152293, now seen corresponding path program 4 times [2024-05-06 03:50:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:50:00,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113500278] [2024-05-06 03:50:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:00,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:50:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 239 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-06 03:50:14,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:50:14,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113500278] [2024-05-06 03:50:14,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113500278] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:50:14,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958193091] [2024-05-06 03:50:14,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-06 03:50:14,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:50:14,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:50:14,685 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) [2024-05-06 03:50:14,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-06 03:50:14,898 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-06 03:50:14,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:50:14,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 129 conjunts are in the unsatisfiable core [2024-05-06 03:50:14,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:50:17,752 INFO L349 Elim1Store]: treesize reduction 113, result has 28.0 percent of original size [2024-05-06 03:50:17,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 285 treesize of output 115 [2024-05-06 03:50:17,780 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 87 proven. 124 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-05-06 03:50:17,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:50:24,210 INFO L349 Elim1Store]: treesize reduction 459, result has 32.6 percent of original size [2024-05-06 03:50:24,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 1159 treesize of output 396 [2024-05-06 03:50:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 43 proven. 181 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-06 03:50:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958193091] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:50:26,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:50:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 27, 32] total 100 [2024-05-06 03:50:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301661652] [2024-05-06 03:50:26,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:50:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-05-06 03:50:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:50:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-05-06 03:50:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1515, Invalid=8385, Unknown=0, NotChecked=0, Total=9900 [2024-05-06 03:50:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:50:26,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:50:26,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.51) internal successors, (551), 100 states have internal predecessors, (551), 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) [2024-05-06 03:50:26,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:50:26,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:50:26,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:50:26,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:50:30,693 INFO L349 Elim1Store]: treesize reduction 9, result has 87.7 percent of original size [2024-05-06 03:50:30,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 102 [2024-05-06 03:50:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash 972312913, now seen corresponding path program 12 times [2024-05-06 03:50:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:30,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:31,726 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:50:31,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 451 treesize of output 464 [2024-05-06 03:50:38,971 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-05-06 03:50:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 953779835, now seen corresponding path program 13 times [2024-05-06 03:50:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:43,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:43,807 INFO L349 Elim1Store]: treesize reduction 32, result has 86.9 percent of original size [2024-05-06 03:50:43,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 267 treesize of output 303 [2024-05-06 03:50:49,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1448241390, now seen corresponding path program 14 times [2024-05-06 03:50:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:49,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:49,387 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:50:49,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 113 [2024-05-06 03:50:52,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1191401790, now seen corresponding path program 15 times [2024-05-06 03:50:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:52,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:52,424 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-06 03:50:52,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 92 [2024-05-06 03:50:52,576 INFO L85 PathProgramCache]: Analyzing trace with hash -148605116, now seen corresponding path program 16 times [2024-05-06 03:50:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:52,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:50:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:50:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:50:52,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-06 03:50:52,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-06 03:50:52,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27 [2024-05-06 03:50:52,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:50:52,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:50:52,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1179727480, now seen corresponding path program 5 times [2024-05-06 03:50:52,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:50:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837748121] [2024-05-06 03:50:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:50:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 236 proven. 90 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-05-06 03:50:53,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:50:53,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837748121] [2024-05-06 03:50:53,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837748121] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:50:53,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945684026] [2024-05-06 03:50:53,526 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-06 03:50:53,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:50:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:50:53,527 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) [2024-05-06 03:50:53,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-06 03:50:53,761 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-05-06 03:50:53,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:50:53,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 40 conjunts are in the unsatisfiable core [2024-05-06 03:50:53,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:50:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 61 proven. 373 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-05-06 03:50:54,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:50:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 225 proven. 69 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-05-06 03:50:54,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945684026] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:50:54,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:50:54,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 41, 13] total 64 [2024-05-06 03:50:54,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453853687] [2024-05-06 03:50:54,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:50:54,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-05-06 03:50:54,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:50:54,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-05-06 03:50:54,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=3691, Unknown=0, NotChecked=0, Total=4032 [2024-05-06 03:50:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:50:54,888 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:50:54,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 5.109375) internal successors, (327), 64 states have internal predecessors, (327), 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) [2024-05-06 03:50:54,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:50:54,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:50:54,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:50:54,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-06 03:50:54,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:50:57,153 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-06 03:50:57,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 92 [2024-05-06 03:50:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1179238019, now seen corresponding path program 17 times [2024-05-06 03:50:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:50:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:50:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:57,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:50:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:50:58,243 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:50:58,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 454 treesize of output 467 [2024-05-06 03:51:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1042950437, now seen corresponding path program 18 times [2024-05-06 03:51:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:51:16,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:51:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:16,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:51:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:17,645 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:51:17,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 456 treesize of output 469 [2024-05-06 03:51:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash -536056294, now seen corresponding path program 19 times [2024-05-06 03:51:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:51:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:51:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:33,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:51:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:51:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:51:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:51:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-05-06 03:51:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-05-06 03:51:33,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-06 03:51:33,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-05-06 03:51:33,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:51:33,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:51:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2035599971, now seen corresponding path program 6 times [2024-05-06 03:51:33,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:51:33,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188862612] [2024-05-06 03:51:33,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:51:33,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:51:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:51:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 109 proven. 88 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-05-06 03:51:33,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:51:33,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188862612] [2024-05-06 03:51:33,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188862612] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:51:33,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374803043] [2024-05-06 03:51:33,962 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-06 03:51:33,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:51:33,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:51:33,963 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) [2024-05-06 03:51:33,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-06 03:51:34,576 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-05-06 03:51:34,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:51:34,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 40 conjunts are in the unsatisfiable core [2024-05-06 03:51:34,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:51:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 54 proven. 380 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-05-06 03:51:35,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:51:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 71 proven. 66 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-05-06 03:51:35,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374803043] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:51:35,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:51:35,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 41, 10] total 59 [2024-05-06 03:51:35,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732218000] [2024-05-06 03:51:35,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:51:35,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-05-06 03:51:35,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:51:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-05-06 03:51:35,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=3091, Unknown=0, NotChecked=0, Total=3422 [2024-05-06 03:51:35,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:51:35,531 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:51:35,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 5.169491525423729) internal successors, (305), 59 states have internal predecessors, (305), 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) [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2024-05-06 03:51:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:51:38,944 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-06 03:51:38,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 92 [2024-05-06 03:51:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1074005929, now seen corresponding path program 20 times [2024-05-06 03:51:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:51:39,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:51:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:39,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:51:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:40,036 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:51:40,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 419 treesize of output 464 [2024-05-06 03:51:58,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1256834425, now seen corresponding path program 21 times [2024-05-06 03:51:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:51:58,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:51:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:58,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:51:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:51:59,845 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:51:59,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 456 treesize of output 469 [2024-05-06 03:52:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2113687186, now seen corresponding path program 22 times [2024-05-06 03:52:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:52:10,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:52:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:10,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:52:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:52:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:52:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:52:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-06 03:52:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-05-06 03:52:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2024-05-06 03:52:10,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-05-06 03:52:10,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35 [2024-05-06 03:52:10,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:52:10,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:52:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1572965655, now seen corresponding path program 7 times [2024-05-06 03:52:10,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:52:10,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064289216] [2024-05-06 03:52:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:52:10,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:52:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:52:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 25 proven. 219 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-05-06 03:52:11,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:52:11,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064289216] [2024-05-06 03:52:11,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064289216] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:52:11,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130904721] [2024-05-06 03:52:11,737 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-06 03:52:11,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:52:11,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:52:11,738 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) [2024-05-06 03:52:11,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-06 03:52:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:52:11,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 52 conjunts are in the unsatisfiable core [2024-05-06 03:52:11,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:52:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 14 proven. 731 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-05-06 03:52:13,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:52:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 26 proven. 124 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2024-05-06 03:52:13,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130904721] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-06 03:52:13,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-06 03:52:13,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 53, 10] total 65 [2024-05-06 03:52:13,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898459490] [2024-05-06 03:52:13,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-06 03:52:13,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-05-06 03:52:13,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-06 03:52:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-05-06 03:52:13,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3893, Unknown=0, NotChecked=0, Total=4160 [2024-05-06 03:52:13,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:52:13,466 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-06 03:52:13,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 4.707692307692308) internal successors, (306), 65 states have internal predecessors, (306), 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) [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2024-05-06 03:52:13,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2024-05-06 03:52:13,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-06 03:52:17,884 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-06 03:52:17,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 92 [2024-05-06 03:52:18,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1425089046, now seen corresponding path program 23 times [2024-05-06 03:52:18,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:52:18,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:52:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:18,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:52:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:19,000 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:52:19,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 451 treesize of output 464 [2024-05-06 03:52:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1612809496, now seen corresponding path program 24 times [2024-05-06 03:52:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:52:31,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:52:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:31,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:52:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:32,436 INFO L349 Elim1Store]: treesize reduction 63, result has 84.4 percent of original size [2024-05-06 03:52:32,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 454 treesize of output 467 [2024-05-06 03:52:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash -639388083, now seen corresponding path program 25 times [2024-05-06 03:52:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:52:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:52:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:46,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:52:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:52:48,267 INFO L349 Elim1Store]: treesize reduction 94, result has 84.4 percent of original size [2024-05-06 03:52:48,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 609 treesize of output 661 [2024-05-06 03:53:31,054 INFO L85 PathProgramCache]: Analyzing trace with hash -881782355, now seen corresponding path program 26 times [2024-05-06 03:53:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:31,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:31,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:31,474 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:31,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 121 [2024-05-06 03:53:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash -410741962, now seen corresponding path program 27 times [2024-05-06 03:53:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:34,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:34,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:34,477 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:34,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 116 [2024-05-06 03:53:37,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2120723558, now seen corresponding path program 28 times [2024-05-06 03:53:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:37,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:37,641 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:37,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 118 [2024-05-06 03:53:40,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1160247656, now seen corresponding path program 29 times [2024-05-06 03:53:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:40,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:40,811 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:40,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 113 [2024-05-06 03:53:43,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1797861539, now seen corresponding path program 30 times [2024-05-06 03:53:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:43,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:44,047 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:44,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 113 [2024-05-06 03:53:46,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1284882310, now seen corresponding path program 31 times [2024-05-06 03:53:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:46,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:46,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:47,207 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:47,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 118 [2024-05-06 03:53:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1021729098, now seen corresponding path program 32 times [2024-05-06 03:53:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:49,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:50,135 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:50,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 113 [2024-05-06 03:53:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1313350216, now seen corresponding path program 33 times [2024-05-06 03:53:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:52,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:53,261 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:53,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 121 [2024-05-06 03:53:55,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1125719309, now seen corresponding path program 34 times [2024-05-06 03:53:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:55,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:56,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:56,392 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-06 03:53:56,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 116 [2024-05-06 03:53:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash 102259670, now seen corresponding path program 35 times [2024-05-06 03:53:59,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:59,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:53:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:59,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-06 03:53:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-06 03:53:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-06 03:53:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-06 03:53:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-06 03:53:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-06 03:53:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-05-06 03:53:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2024-05-06 03:53:59,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2024-05-06 03:53:59,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-06 03:53:59,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable42,SelfDestructingSolverStorable43,SelfDestructingSolverStorable44,SelfDestructingSolverStorable45,SelfDestructingSolverStorable46,SelfDestructingSolverStorable36,SelfDestructingSolverStorable47,SelfDestructingSolverStorable37,SelfDestructingSolverStorable48,SelfDestructingSolverStorable38,SelfDestructingSolverStorable49,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-05-06 03:53:59,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-06 03:53:59,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-06 03:53:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash 939045127, now seen corresponding path program 8 times [2024-05-06 03:53:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-06 03:53:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23740614] [2024-05-06 03:53:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-06 03:53:59,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-06 03:54:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-06 03:54:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3087 backedges. 164 proven. 2491 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-05-06 03:54:47,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-06 03:54:47,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23740614] [2024-05-06 03:54:47,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23740614] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-06 03:54:47,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330942025] [2024-05-06 03:54:47,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-06 03:54:47,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-06 03:54:47,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-06 03:54:47,604 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) [2024-05-06 03:54:47,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-06 03:54:48,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-06 03:54:48,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-06 03:54:48,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 314 conjunts are in the unsatisfiable core [2024-05-06 03:54:48,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-06 03:54:48,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-05-06 03:54:48,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-05-06 03:54:49,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-05-06 03:54:49,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-05-06 03:54:50,142 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-05-06 03:54:50,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-05-06 03:54:50,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-05-06 03:54:50,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-05-06 03:54:51,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-06 03:54:51,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-06 03:54:58,881 INFO L349 Elim1Store]: treesize reduction 76, result has 27.6 percent of original size [2024-05-06 03:54:58,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 13 case distinctions, treesize of input 176 treesize of output 81 [2024-05-06 03:54:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3087 backedges. 1082 proven. 1364 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2024-05-06 03:54:58,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-06 03:56:34,995 INFO L349 Elim1Store]: treesize reduction 278, result has 32.9 percent of original size [2024-05-06 03:56:34,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 5351 treesize of output 1066 Received shutdown request... [2024-05-06 04:03:10,379 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-06 04:03:10,379 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-06 04:03:10,379 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-06 04:03:11,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-05-06 04:03:11,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-06 04:03:11,579 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-05-06 04:03:11,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2024-05-06 04:03:11,639 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-06 04:03:11,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-05-06 04:03:11,640 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:346) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 55 more [2024-05-06 04:03:11,643 INFO L158 Benchmark]: Toolchain (without parser) took 832686.54ms. Allocated memory was 286.3MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 217.3MB in the beginning and 564.1MB in the end (delta: -346.8MB). Peak memory consumption was 779.1MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 286.3MB. Free memory was 252.1MB in the beginning and 251.9MB in the end (delta: 216.7kB). There was no memory consumed. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.32ms. Allocated memory is still 286.3MB. Free memory was 217.1MB in the beginning and 205.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.17ms. Allocated memory is still 286.3MB. Free memory was 205.1MB in the beginning and 203.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 286.3MB. Free memory was 203.0MB in the beginning and 201.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: RCFGBuilder took 602.64ms. Allocated memory is still 286.3MB. Free memory was 201.1MB in the beginning and 231.8MB in the end (delta: -30.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,644 INFO L158 Benchmark]: TraceAbstraction took 831848.44ms. Allocated memory was 286.3MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 230.8MB in the beginning and 564.1MB in the end (delta: -333.3MB). Peak memory consumption was 793.3MB. Max. memory is 8.0GB. [2024-05-06 04:03:11,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 286.3MB. Free memory was 252.1MB in the beginning and 251.9MB in the end (delta: 216.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.32ms. Allocated memory is still 286.3MB. Free memory was 217.1MB in the beginning and 205.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.17ms. Allocated memory is still 286.3MB. Free memory was 205.1MB in the beginning and 203.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 286.3MB. Free memory was 203.0MB in the beginning and 201.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 602.64ms. Allocated memory is still 286.3MB. Free memory was 201.1MB in the beginning and 231.8MB in the end (delta: -30.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 831848.44ms. Allocated memory was 286.3MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 230.8MB in the beginning and 564.1MB in the end (delta: -333.3MB). Peak memory consumption was 793.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown