/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 BOTH --traceabstraction.criterion.for.conditional.commutativity.checking LOOP --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -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 [2024-05-08 07:31:25,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-08 07:31:25,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-08 07:31:25,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-08 07:31:25,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-08 07:31:25,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-08 07:31:25,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-08 07:31:25,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-08 07:31:25,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-08 07:31:25,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-08 07:31:25,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-08 07:31:25,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-08 07:31:25,691 INFO L153 SettingsManager]: * Use SBE=true [2024-05-08 07:31:25,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-08 07:31:25,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-08 07:31:25,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-08 07:31:25,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-08 07:31:25,695 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-08 07:31:25,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-08 07:31:25,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-08 07:31:25,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-08 07:31:25,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-08 07:31:25,696 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-08 07:31:25,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-08 07:31:25,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-08 07:31:25,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-08 07:31:25,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-08 07:31:25,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-08 07:31:25,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-08 07:31:25,697 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-08 07:31:25,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-08 07:31:25,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-08 07:31:25,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-08 07:31:25,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-08 07:31:25,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> BOTH Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-05-08 07:31:25,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-08 07:31:25,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-08 07:31:25,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-08 07:31:25,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-08 07:31:25,984 INFO L274 PluginConnector]: CDTParser initialized [2024-05-08 07:31:25,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-08 07:31:27,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-08 07:31:27,269 INFO L384 CDTParser]: Found 1 translation units. [2024-05-08 07:31:27,270 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-05-08 07:31:27,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9170adc19/5ddbf51aa5144dd5a3c21fce9afa4980/FLAG081cd2b1a [2024-05-08 07:31:27,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9170adc19/5ddbf51aa5144dd5a3c21fce9afa4980 [2024-05-08 07:31:27,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-08 07:31:27,288 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-08 07:31:27,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-08 07:31:27,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-08 07:31:27,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-08 07:31:27,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7086d0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27, skipping insertion in model container [2024-05-08 07:31:27,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-08 07:31:27,449 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] [2024-05-08 07:31:27,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-08 07:31:27,463 INFO L202 MainTranslator]: Completed pre-run [2024-05-08 07:31:27,481 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] [2024-05-08 07:31:27,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-08 07:31:27,494 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-05-08 07:31:27,494 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-05-08 07:31:27,500 INFO L206 MainTranslator]: Completed translation [2024-05-08 07:31:27,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27 WrapperNode [2024-05-08 07:31:27,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-08 07:31:27,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-08 07:31:27,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-08 07:31:27,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-08 07:31:27,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,537 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 201 [2024-05-08 07:31:27,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-08 07:31:27,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-08 07:31:27,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-08 07:31:27,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-08 07:31:27,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-08 07:31:27,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-08 07:31:27,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-08 07:31:27,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-08 07:31:27,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (1/1) ... [2024-05-08 07:31:27,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-08 07:31:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:31:27,612 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) [2024-05-08 07:31:27,620 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 [2024-05-08 07:31:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-08 07:31:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-08 07:31:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-08 07:31:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-08 07:31:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-08 07:31:27,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-08 07:31:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-08 07:31:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-08 07:31:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-08 07:31:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-08 07:31:27,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-08 07:31:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-08 07:31:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-08 07:31:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-08 07:31:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-08 07:31:27,675 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-08 07:31:27,786 INFO L241 CfgBuilder]: Building ICFG [2024-05-08 07:31:27,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-08 07:31:28,130 INFO L282 CfgBuilder]: Performing block encoding [2024-05-08 07:31:28,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-08 07:31:28,257 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-05-08 07:31:28,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.05 07:31:28 BoogieIcfgContainer [2024-05-08 07:31:28,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-08 07:31:28,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-08 07:31:28,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-08 07:31:28,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-08 07:31:28,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.05 07:31:27" (1/3) ... [2024-05-08 07:31:28,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4bb16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.05 07:31:28, skipping insertion in model container [2024-05-08 07:31:28,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.05 07:31:27" (2/3) ... [2024-05-08 07:31:28,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4bb16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.05 07:31:28, skipping insertion in model container [2024-05-08 07:31:28,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.05 07:31:28" (3/3) ... [2024-05-08 07:31:28,266 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-05-08 07:31:28,274 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-08 07:31:28,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-08 07:31:28,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-08 07:31:28,283 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-08 07:31:28,337 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-08 07:31:28,373 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-08 07:31:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-08 07:31:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:31:28,379 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) [2024-05-08 07:31:28,380 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 [2024-05-08 07:31:28,409 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-08 07:31:28,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:31:28,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-08 07:31:28,433 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;@7e77fa17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=BOTH, mConComCheckerCriterion=LOOP, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-05-08 07:31:28,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-08 07:31:28,901 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:28,902 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 [2024-05-08 07:31:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1506279985, now seen corresponding path program 1 times [2024-05-08 07:31:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:31,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-08 07:31:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-08 07:31:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-08 07:31:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-08 07:31:32,297 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:32,297 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 [2024-05-08 07:31:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -546165230, now seen corresponding path program 1 times [2024-05-08 07:31:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-08 07:31:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:35,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-08 07:31:35,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-05-08 07:31:35,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-05-08 07:31:35,705 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:35,705 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 [2024-05-08 07:31:38,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1870937576, now seen corresponding path program 1 times [2024-05-08 07:31:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:38,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-08 07:31:38,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:38,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-08 07:31:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-08 07:31:38,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-05-08 07:31:38,714 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:38,714 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 [2024-05-08 07:31:41,241 INFO L85 PathProgramCache]: Analyzing trace with hash -295808147, now seen corresponding path program 1 times [2024-05-08 07:31:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:41,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-08 07:31:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:41,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-08 07:31:41,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:31:41,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:31:41,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1523536138, now seen corresponding path program 1 times [2024-05-08 07:31:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:31:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529630112] [2024-05-08 07:31:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-08 07:31:42,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:31:42,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529630112] [2024-05-08 07:31:42,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529630112] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:31:42,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887689786] [2024-05-08 07:31:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:42,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:31:42,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:31:42,226 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) [2024-05-08 07:31:42,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-08 07:31:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:42,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-08 07:31:42,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:31:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-08 07:31:42,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:31:42,566 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 [2024-05-08 07:31:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-08 07:31:42,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887689786] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:31:42,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:31:42,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 20 [2024-05-08 07:31:42,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302863819] [2024-05-08 07:31:42,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:31:42,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-08 07:31:42,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:31:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-08 07:31:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-05-08 07:31:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:42,791 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:31:42,792 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) [2024-05-08 07:31:42,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:43,267 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2024-05-08 07:31:43,268 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 [2024-05-08 07:31:43,448 INFO L85 PathProgramCache]: Analyzing trace with hash -920053313, now seen corresponding path program 2 times [2024-05-08 07:31:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:43,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:43,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-08 07:31:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:43,675 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:43,676 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 [2024-05-08 07:31:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1464304803, now seen corresponding path program 3 times [2024-05-08 07:31:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:46,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:46,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-08 07:31:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:31:46,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-08 07:31:46,473 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 [2024-05-08 07:31:46,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:31:46,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:31:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1961042676, now seen corresponding path program 2 times [2024-05-08 07:31:46,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:31:46,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566965681] [2024-05-08 07:31:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:46,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-08 07:31:46,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:31:46,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566965681] [2024-05-08 07:31:46,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566965681] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:31:46,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108478627] [2024-05-08 07:31:46,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-08 07:31:46,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:31:46,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:31:46,729 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) [2024-05-08 07:31:46,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-08 07:31:46,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-08 07:31:46,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:31:46,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 12 conjunts are in the unsatisfiable core [2024-05-08 07:31:46,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:31:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-08 07:31:47,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:31:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-05-08 07:31:47,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108478627] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:31:47,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:31:47,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 8] total 23 [2024-05-08 07:31:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124023326] [2024-05-08 07:31:47,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:31:47,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-05-08 07:31:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:31:47,388 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:47,389 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 113 treesize of output 116 [2024-05-08 07:31:50,160 INFO L85 PathProgramCache]: Analyzing trace with hash -920053313, now seen corresponding path program 4 times [2024-05-08 07:31:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:50,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:50,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-08 07:31:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:50,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-05-08 07:31:50,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-05-08 07:31:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:50,237 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:31:50,237 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) [2024-05-08 07:31:50,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:31:50,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:51,099 INFO L349 Elim1Store]: treesize reduction 9, result has 87.7 percent of original size [2024-05-08 07:31:51,100 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 79 treesize of output 102 [2024-05-08 07:31:51,258 INFO L85 PathProgramCache]: Analyzing trace with hash -234392552, now seen corresponding path program 5 times [2024-05-08 07:31:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:51,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-08 07:31:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:51,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:51,544 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-08 07:31:51,815 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:51,815 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 [2024-05-08 07:31:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 555068779, now seen corresponding path program 6 times [2024-05-08 07:31:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:54,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:54,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-08 07:31:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:54,997 INFO L349 Elim1Store]: treesize reduction 9, result has 88.3 percent of original size [2024-05-08 07:31:54,997 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 [2024-05-08 07:31:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1394102917, now seen corresponding path program 7 times [2024-05-08 07:31:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:57,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-08 07:31:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-08 07:31:57,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:31:57,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:31:57,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-08 07:31:57,852 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 [2024-05-08 07:31:57,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:31:57,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:31:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1954960646, now seen corresponding path program 3 times [2024-05-08 07:31:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:31:57,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461445319] [2024-05-08 07:31:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:31:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-05-08 07:31:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:31:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461445319] [2024-05-08 07:31:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461445319] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:31:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31875737] [2024-05-08 07:31:58,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-08 07:31:58,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:31:58,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:31:58,398 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) [2024-05-08 07:31:58,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-08 07:31:58,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-05-08 07:31:58,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:31:58,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-08 07:31:58,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:31:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-05-08 07:31:58,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:31:58,753 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 [2024-05-08 07:31:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-05-08 07:31:58,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31875737] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:31:58,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:31:58,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 20 [2024-05-08 07:31:58,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522272698] [2024-05-08 07:31:58,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:31:58,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-05-08 07:31:58,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:31:58,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-05-08 07:31:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-05-08 07:31:58,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:58,991 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:31:58,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.85) internal successors, (197), 20 states have internal predecessors, (197), 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) [2024-05-08 07:31:58,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:31:58,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:31:58,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:31:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:31:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:31:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:31:59,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-08 07:31:59,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-05-08 07:31:59,492 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:31:59,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:31:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1962152293, now seen corresponding path program 4 times [2024-05-08 07:31:59,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:31:59,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594130795] [2024-05-08 07:31:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:31:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:31:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:32:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 5 proven. 235 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-05-08 07:32:16,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:32:16,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594130795] [2024-05-08 07:32:16,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594130795] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:32:16,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312546066] [2024-05-08 07:32:16,738 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-08 07:32:16,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:32:16,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:32:16,742 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) [2024-05-08 07:32:16,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-08 07:32:16,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-08 07:32:16,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:32:16,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 106 conjunts are in the unsatisfiable core [2024-05-08 07:32:16,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:32:19,756 INFO L349 Elim1Store]: treesize reduction 238, result has 16.5 percent of original size [2024-05-08 07:32:19,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 442 treesize of output 129 [2024-05-08 07:32:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 87 proven. 124 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-05-08 07:32:19,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:32:31,767 INFO L349 Elim1Store]: treesize reduction 908, result has 33.7 percent of original size [2024-05-08 07:32:31,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 33 new quantified variables, introduced 136 case distinctions, treesize of input 2331 treesize of output 695 [2024-05-08 07:32:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 22 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-08 07:32:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312546066] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:32:38,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:32:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 29, 35] total 103 [2024-05-08 07:32:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713372134] [2024-05-08 07:32:38,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:32:38,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-05-08 07:32:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:32:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-05-08 07:32:38,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1119, Invalid=9387, Unknown=0, NotChecked=0, Total=10506 [2024-05-08 07:32:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:32:38,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:32:38,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 5.524271844660194) internal successors, (569), 103 states have internal predecessors, (569), 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) [2024-05-08 07:32:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:32:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:32:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:32:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:32:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:32:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:32:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:32:54,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:32:54,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-08 07:32:55,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:32:55,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:32:55,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:32:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1927482370, now seen corresponding path program 5 times [2024-05-08 07:32:55,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:32:55,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680881121] [2024-05-08 07:32:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:32:55,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:32:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:33:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-08 07:33:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:33:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680881121] [2024-05-08 07:33:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680881121] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:33:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81420866] [2024-05-08 07:33:26,941 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-08 07:33:26,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:33:26,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:33:26,942 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) [2024-05-08 07:33:26,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-08 07:33:27,145 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-05-08 07:33:27,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:33:27,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 80 conjunts are in the unsatisfiable core [2024-05-08 07:33:27,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:33:29,317 INFO L349 Elim1Store]: treesize reduction 358, result has 21.0 percent of original size [2024-05-08 07:33:29,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 216 treesize of output 145 [2024-05-08 07:33:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 38 proven. 194 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-05-08 07:33:29,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:33:31,721 INFO L349 Elim1Store]: treesize reduction 835, result has 21.6 percent of original size [2024-05-08 07:33:31,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 728 treesize of output 365 [2024-05-08 07:33:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 30 proven. 194 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-05-08 07:33:32,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81420866] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:33:32,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:33:32,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 32, 19] total 93 [2024-05-08 07:33:32,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388448231] [2024-05-08 07:33:32,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:33:32,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2024-05-08 07:33:32,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:33:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2024-05-08 07:33:32,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=521, Invalid=8035, Unknown=0, NotChecked=0, Total=8556 [2024-05-08 07:33:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:32,481 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:33:32,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.967741935483871) internal successors, (555), 93 states have internal predecessors, (555), 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) [2024-05-08 07:33:32,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:32,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:33:32,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:32,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:32,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:33:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-05-08 07:33:37,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-08 07:33:37,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:33:37,344 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:33:37,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:33:37,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1449850924, now seen corresponding path program 6 times [2024-05-08 07:33:37,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:33:37,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734480143] [2024-05-08 07:33:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:33:37,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:33:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:33:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 171 proven. 299 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-05-08 07:33:38,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:33:38,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734480143] [2024-05-08 07:33:38,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734480143] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:33:38,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717866659] [2024-05-08 07:33:38,071 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-08 07:33:38,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:33:38,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:33:38,072 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) [2024-05-08 07:33:38,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-08 07:33:38,919 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-05-08 07:33:38,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:33:38,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 48 conjunts are in the unsatisfiable core [2024-05-08 07:33:38,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:33:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 72 proven. 566 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-05-08 07:33:39,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:33:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 88 proven. 360 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-05-08 07:33:40,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717866659] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:33:40,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:33:40,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 49, 15] total 73 [2024-05-08 07:33:40,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092454018] [2024-05-08 07:33:40,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:33:40,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-05-08 07:33:40,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:33:40,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-05-08 07:33:40,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=4793, Unknown=0, NotChecked=0, Total=5256 [2024-05-08 07:33:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:40,231 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:33:40,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 4.726027397260274) internal successors, (345), 73 states have internal predecessors, (345), 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) [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2024-05-08 07:33:40,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:33:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-05-08 07:33:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-05-08 07:33:44,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-08 07:33:44,971 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,SelfDestructingSolverStorable20 [2024-05-08 07:33:44,972 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:33:44,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:33:44,972 INFO L85 PathProgramCache]: Analyzing trace with hash -537824671, now seen corresponding path program 7 times [2024-05-08 07:33:44,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:33:44,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728278209] [2024-05-08 07:33:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:33:44,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:33:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:33:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 235 proven. 134 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2024-05-08 07:33:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:33:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728278209] [2024-05-08 07:33:46,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728278209] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:33:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472800523] [2024-05-08 07:33:46,253 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-05-08 07:33:46,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:33:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:33:46,254 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) [2024-05-08 07:33:46,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-08 07:33:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:33:46,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 60 conjunts are in the unsatisfiable core [2024-05-08 07:33:46,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:33:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 215 proven. 936 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-05-08 07:33:47,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:33:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1245 backedges. 237 proven. 16 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-05-08 07:33:48,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472800523] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-08 07:33:48,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-08 07:33:48,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 61, 8] total 71 [2024-05-08 07:33:48,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474970443] [2024-05-08 07:33:48,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-08 07:33:48,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-05-08 07:33:48,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-08 07:33:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-05-08 07:33:48,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=4714, Unknown=0, NotChecked=0, Total=4970 [2024-05-08 07:33:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:48,260 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-08 07:33:48,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 4.577464788732394) internal successors, (325), 71 states have internal predecessors, (325), 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) [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2024-05-08 07:33:48,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-05-08 07:33:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2024-05-08 07:33:55,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-08 07:33:55,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:33:55,360 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-08 07:33:55,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-08 07:33:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1449782942, now seen corresponding path program 8 times [2024-05-08 07:33:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-08 07:33:55,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527067398] [2024-05-08 07:33:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-08 07:33:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-08 07:33:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-08 07:36:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 190 proven. 2262 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-05-08 07:36:15,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-08 07:36:15,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527067398] [2024-05-08 07:36:15,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527067398] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-08 07:36:15,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912320586] [2024-05-08 07:36:15,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-08 07:36:15,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-08 07:36:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-08 07:36:15,854 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) [2024-05-08 07:36:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-05-08 07:36:17,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-08 07:36:17,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-08 07:36:17,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 384 conjunts are in the unsatisfiable core [2024-05-08 07:36:17,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-08 07:36:17,703 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 [2024-05-08 07:36:18,051 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 [2024-05-08 07:36:18,343 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 [2024-05-08 07:36:18,638 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 [2024-05-08 07:36:19,053 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 [2024-05-08 07:36:20,098 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-05-08 07:36:20,099 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 [2024-05-08 07:36:20,522 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 [2024-05-08 07:36:20,899 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 [2024-05-08 07:36:21,278 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 [2024-05-08 07:36:22,219 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 [2024-05-08 07:36:22,528 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 [2024-05-08 07:36:35,597 INFO L349 Elim1Store]: treesize reduction 167, result has 32.9 percent of original size [2024-05-08 07:36:35,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 20 new quantified variables, introduced 31 case distinctions, treesize of input 546 treesize of output 173 [2024-05-08 07:36:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 237 proven. 2131 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-05-08 07:36:35,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-08 07:39:06,032 INFO L349 Elim1Store]: treesize reduction 648, result has 26.7 percent of original size [2024-05-08 07:39:06,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 8269 treesize of output 1366 Received shutdown request... [2024-05-08 07:45:17,249 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 [2024-05-08 07:45:17,289 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 [2024-05-08 07:45:17,294 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 [2024-05-08 07:45:18,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-05-08 07:45:18,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-08 07:45:18,497 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 [2024-05-08 07:45:18,549 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-05-08 07:45:18,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-05-08 07:45:18,550 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 [2024-05-08 07:45:18,553 INFO L158 Benchmark]: Toolchain (without parser) took 831264.86ms. Allocated memory was 265.3MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 196.8MB in the beginning and 962.1MB in the end (delta: -765.3MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2024-05-08 07:45:18,553 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 265.3MB. Free memory is still 233.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-08 07:45:18,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.46ms. Allocated memory is still 265.3MB. Free memory was 196.6MB in the beginning and 184.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-08 07:45:18,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.26ms. Allocated memory is still 265.3MB. Free memory was 184.6MB in the beginning and 182.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-08 07:45:18,554 INFO L158 Benchmark]: Boogie Preprocessor took 29.92ms. Allocated memory is still 265.3MB. Free memory was 182.4MB in the beginning and 180.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-08 07:45:18,554 INFO L158 Benchmark]: RCFGBuilder took 680.15ms. Allocated memory is still 265.3MB. Free memory was 180.5MB in the beginning and 220.7MB in the end (delta: -40.2MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. [2024-05-08 07:45:18,554 INFO L158 Benchmark]: TraceAbstraction took 830291.77ms. Allocated memory was 265.3MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 219.7MB in the beginning and 962.1MB in the end (delta: -742.4MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2024-05-08 07:45:18,555 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2024-05-08 07:45:18,556 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 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 265.3MB. Free memory is still 233.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 211.46ms. Allocated memory is still 265.3MB. Free memory was 196.6MB in the beginning and 184.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.26ms. Allocated memory is still 265.3MB. Free memory was 184.6MB in the beginning and 182.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.92ms. Allocated memory is still 265.3MB. Free memory was 182.4MB in the beginning and 180.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 680.15ms. Allocated memory is still 265.3MB. Free memory was 180.5MB in the beginning and 220.7MB in the end (delta: -40.2MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. * TraceAbstraction took 830291.77ms. Allocated memory was 265.3MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 219.7MB in the beginning and 962.1MB in the end (delta: -742.4MB). Peak memory consumption was 1.8GB. 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