/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 05:47:59,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 05:47:59,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 05:47:59,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 05:47:59,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 05:47:59,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 05:47:59,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 05:47:59,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 05:47:59,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 05:47:59,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 05:47:59,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 05:47:59,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 05:47:59,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 05:47:59,158 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 05:47:59,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 05:47:59,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 05:47:59,159 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 05:47:59,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 05:47:59,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 05:47:59,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 05:47:59,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 05:47:59,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 05:47:59,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 05:47:59,161 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 05:47:59,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 05:47:59,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 05:47:59,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 05:47:59,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 05:47:59,162 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 05:47:59,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 05:47:59,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 05:47:59,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 05:47:59,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 05:47:59,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 05:47:59,164 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 05:47:59,164 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 05:47:59,164 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 05:47:59,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 05:47:59,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 05:47:59,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 05:47:59,374 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 05:47:59,374 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 05:47:59,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-09-07 05:48:00,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 05:48:00,476 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 05:48:00,476 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-09-07 05:48:00,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fd3a625/34ae8dcd993a4cb1af53be7c52a97ce0/FLAG52faa7169 [2023-09-07 05:48:00,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fd3a625/34ae8dcd993a4cb1af53be7c52a97ce0 [2023-09-07 05:48:00,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 05:48:00,494 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 05:48:00,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 05:48:00,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 05:48:00,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 05:48:00,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b0151d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00, skipping insertion in model container [2023-09-07 05:48:00,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 05:48:00,628 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/chl-node-subst.wvr.c[3996,4009] [2023-09-07 05:48:00,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 05:48:00,651 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 05:48:00,674 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/chl-node-subst.wvr.c[3996,4009] [2023-09-07 05:48:00,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 05:48:00,687 INFO L206 MainTranslator]: Completed translation [2023-09-07 05:48:00,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00 WrapperNode [2023-09-07 05:48:00,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 05:48:00,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 05:48:00,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 05:48:00,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 05:48:00,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,726 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 437 [2023-09-07 05:48:00,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 05:48:00,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 05:48:00,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 05:48:00,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 05:48:00,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 05:48:00,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 05:48:00,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 05:48:00,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 05:48:00,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (1/1) ... [2023-09-07 05:48:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 05:48:00,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:00,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 05:48:00,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 05:48:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 05:48:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 05:48:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 05:48:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 05:48:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 05:48:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 05:48:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 05:48:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 05:48:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 05:48:00,848 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 05:48:00,971 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 05:48:00,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 05:48:01,362 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 05:48:01,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 05:48:01,378 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-09-07 05:48:01,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:48:01 BoogieIcfgContainer [2023-09-07 05:48:01,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 05:48:01,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 05:48:01,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 05:48:01,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 05:48:01,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 05:48:00" (1/3) ... [2023-09-07 05:48:01,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6b3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:48:01, skipping insertion in model container [2023-09-07 05:48:01,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:48:00" (2/3) ... [2023-09-07 05:48:01,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6b3759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:48:01, skipping insertion in model container [2023-09-07 05:48:01,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:48:01" (3/3) ... [2023-09-07 05:48:01,387 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-09-07 05:48:01,392 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 05:48:01,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 05:48:01,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 05:48:01,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 05:48:01,479 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-07 05:48:01,519 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 05:48:01,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 05:48:01,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:01,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 05:48:01,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 05:48:01,556 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 05:48:01,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 05:48:01,565 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=LoopsAndPotentialCycles, 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;@1b8f32fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 05:48:01,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2023-09-07 05:48:01,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:01,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:01,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1517195723, now seen corresponding path program 1 times [2023-09-07 05:48:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253195786] [2023-09-07 05:48:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:02,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:02,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253195786] [2023-09-07 05:48:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253195786] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:48:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 05:48:02,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 05:48:02,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469298984] [2023-09-07 05:48:02,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:02,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 05:48:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:02,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 05:48:02,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 05:48:02,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:02,101 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:02,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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) [2023-09-07 05:48:02,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:02,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 05:48:02,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:02,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1171306929, now seen corresponding path program 1 times [2023-09-07 05:48:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102398751] [2023-09-07 05:48:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:02,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:02,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:02,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102398751] [2023-09-07 05:48:02,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102398751] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:02,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335689188] [2023-09-07 05:48:02,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:02,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:02,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:02,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:02,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 05:48:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:02,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-07 05:48:02,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:03,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:03,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335689188] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:03,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-09-07 05:48:03,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 16 [2023-09-07 05:48:03,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626335309] [2023-09-07 05:48:03,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:03,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 05:48:03,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:03,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 05:48:03,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-09-07 05:48:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:03,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:03,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 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) [2023-09-07 05:48:03,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:03,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:03,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:03,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 05:48:03,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-09-07 05:48:03,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:03,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:03,781 INFO L85 PathProgramCache]: Analyzing trace with hash -632784412, now seen corresponding path program 1 times [2023-09-07 05:48:03,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:03,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300988806] [2023-09-07 05:48:03,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:03,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:04,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:04,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300988806] [2023-09-07 05:48:04,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300988806] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:04,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180794648] [2023-09-07 05:48:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:04,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:04,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:04,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 05:48:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:04,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 12 conjunts are in the unsatisfiable core [2023-09-07 05:48:04,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:04,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180794648] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:48:04,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:48:04,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-09-07 05:48:04,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857475609] [2023-09-07 05:48:04,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:48:04,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-09-07 05:48:04,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-09-07 05:48:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2023-09-07 05:48:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:04,968 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:04,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 26 states have internal predecessors, (409), 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) [2023-09-07 05:48:04,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:04,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:05,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:05,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:05,714 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:05,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash 434168659, now seen corresponding path program 2 times [2023-09-07 05:48:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:05,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607433286] [2023-09-07 05:48:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 05:48:06,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:06,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607433286] [2023-09-07 05:48:06,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607433286] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:06,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368813957] [2023-09-07 05:48:06,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:48:06,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:06,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:06,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:06,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 05:48:06,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:48:06,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:48:06,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 05:48:06,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-09-07 05:48:06,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 05:48:06,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368813957] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:48:06,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 05:48:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 23 [2023-09-07 05:48:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528253475] [2023-09-07 05:48:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:06,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 05:48:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 05:48:06,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2023-09-07 05:48:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:06,568 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:06,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 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) [2023-09-07 05:48:06,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:06,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:06,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:06,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:06,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:07,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:07,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:07,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash -83752949, now seen corresponding path program 1 times [2023-09-07 05:48:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:07,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922334293] [2023-09-07 05:48:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 05:48:07,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922334293] [2023-09-07 05:48:07,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922334293] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368961514] [2023-09-07 05:48:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:07,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:07,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:07,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:07,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 05:48:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:07,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 16 conjunts are in the unsatisfiable core [2023-09-07 05:48:07,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 05:48:07,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 05:48:08,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368961514] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:48:08,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:48:08,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 36 [2023-09-07 05:48:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010254430] [2023-09-07 05:48:08,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:48:08,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-09-07 05:48:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-09-07 05:48:08,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1101, Unknown=0, NotChecked=0, Total=1260 [2023-09-07 05:48:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:08,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:08,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 12.63888888888889) internal successors, (455), 36 states have internal predecessors, (455), 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) [2023-09-07 05:48:08,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:08,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:08,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:08,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:08,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:09,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:09,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:09,214 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:09,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:09,215 INFO L85 PathProgramCache]: Analyzing trace with hash -188805366, now seen corresponding path program 2 times [2023-09-07 05:48:09,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:09,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255919717] [2023-09-07 05:48:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 05:48:09,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:09,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255919717] [2023-09-07 05:48:09,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255919717] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:09,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166981965] [2023-09-07 05:48:09,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:48:09,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:09,793 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:09,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 05:48:09,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:48:09,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:48:09,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 05:48:09,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-09-07 05:48:10,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 05:48:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166981965] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:48:10,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 05:48:10,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [21] total 27 [2023-09-07 05:48:10,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453633232] [2023-09-07 05:48:10,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 05:48:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:10,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 05:48:10,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2023-09-07 05:48:10,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:10,207 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:10,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 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) [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:10,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:10,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:10,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:10,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:10,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:10,700 INFO L85 PathProgramCache]: Analyzing trace with hash 700091359, now seen corresponding path program 1 times [2023-09-07 05:48:10,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:10,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702215449] [2023-09-07 05:48:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:10,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 64 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 05:48:11,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702215449] [2023-09-07 05:48:11,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702215449] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417100478] [2023-09-07 05:48:11,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:11,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:11,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:11,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:11,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-07 05:48:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:11,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 20 conjunts are in the unsatisfiable core [2023-09-07 05:48:11,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 27 proven. 49 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 05:48:11,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 52 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 05:48:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417100478] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:48:12,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:48:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 46 [2023-09-07 05:48:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400573872] [2023-09-07 05:48:12,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:48:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-09-07 05:48:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-09-07 05:48:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1830, Unknown=0, NotChecked=0, Total=2070 [2023-09-07 05:48:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:12,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:12,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.891304347826088) internal successors, (501), 46 states have internal predecessors, (501), 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) [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:13,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:13,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:13,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:13,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1787733192, now seen corresponding path program 2 times [2023-09-07 05:48:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506784259] [2023-09-07 05:48:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 30 proven. 101 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 05:48:14,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506784259] [2023-09-07 05:48:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506784259] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677364333] [2023-09-07 05:48:14,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:48:14,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:14,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:14,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:14,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-07 05:48:14,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:48:14,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:48:14,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 05:48:14,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-09-07 05:48:14,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 05:48:14,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677364333] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:48:14,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 05:48:14,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [25] total 31 [2023-09-07 05:48:14,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063004780] [2023-09-07 05:48:14,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:14,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 05:48:14,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 05:48:14,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2023-09-07 05:48:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:14,648 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:14,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 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) [2023-09-07 05:48:14,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:14,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:14,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:14,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:14,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:14,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:14,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:14,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:14,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-09-07 05:48:15,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:15,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1029528350, now seen corresponding path program 1 times [2023-09-07 05:48:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:15,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177040138] [2023-09-07 05:48:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 30 proven. 101 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 05:48:15,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:15,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177040138] [2023-09-07 05:48:15,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177040138] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:15,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783830809] [2023-09-07 05:48:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:15,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:15,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:15,804 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:15,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-09-07 05:48:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:15,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 24 conjunts are in the unsatisfiable core [2023-09-07 05:48:15,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 52 proven. 79 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 05:48:16,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 85 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 05:48:17,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783830809] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:48:17,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:48:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 56 [2023-09-07 05:48:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727439717] [2023-09-07 05:48:17,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:48:17,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-09-07 05:48:17,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-09-07 05:48:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=2741, Unknown=0, NotChecked=0, Total=3080 [2023-09-07 05:48:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:17,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:17,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 9.75) internal successors, (546), 56 states have internal predecessors, (546), 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) [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:17,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 05:48:18,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-09-07 05:48:18,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:18,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:18,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1710359427, now seen corresponding path program 2 times [2023-09-07 05:48:18,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:18,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604374359] [2023-09-07 05:48:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:18,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 56 proven. 145 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 05:48:19,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:19,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604374359] [2023-09-07 05:48:19,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604374359] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:19,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929293189] [2023-09-07 05:48:19,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:48:19,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:19,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:19,257 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:19,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-09-07 05:48:19,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:48:19,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:48:19,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 05:48:19,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-09-07 05:48:19,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 05:48:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929293189] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 05:48:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 05:48:19,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29] total 35 [2023-09-07 05:48:19,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621968448] [2023-09-07 05:48:19,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 05:48:19,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 05:48:19,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 05:48:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1071, Unknown=0, NotChecked=0, Total=1190 [2023-09-07 05:48:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:19,823 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:19,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 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) [2023-09-07 05:48:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:19,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:19,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:19,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:19,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 05:48:19,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 05:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 05:48:20,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:20,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-09-07 05:48:20,317 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:20,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:20,317 INFO L85 PathProgramCache]: Analyzing trace with hash -248725900, now seen corresponding path program 1 times [2023-09-07 05:48:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:20,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628132405] [2023-09-07 05:48:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:20,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 56 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 05:48:21,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:21,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628132405] [2023-09-07 05:48:21,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628132405] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:21,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405110689] [2023-09-07 05:48:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:21,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:21,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:21,094 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:21,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-09-07 05:48:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:21,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 28 conjunts are in the unsatisfiable core [2023-09-07 05:48:21,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 85 proven. 116 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 05:48:22,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 05:48:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 126 proven. 75 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 05:48:22,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405110689] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 05:48:22,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 05:48:22,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 66 [2023-09-07 05:48:22,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534858562] [2023-09-07 05:48:22,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 05:48:22,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-09-07 05:48:22,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 05:48:22,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-09-07 05:48:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=3834, Unknown=0, NotChecked=0, Total=4290 [2023-09-07 05:48:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:22,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 05:48:22,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 8.954545454545455) internal successors, (591), 66 states have internal predecessors, (591), 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) [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 05:48:22,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 05:48:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 05:48:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-07 05:48:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 05:48:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 05:48:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-09-07 05:48:23,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-09-07 05:48:24,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-09-07 05:48:24,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 05:48:24,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 05:48:24,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2071906991, now seen corresponding path program 2 times [2023-09-07 05:48:24,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 05:48:24,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392575593] [2023-09-07 05:48:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 05:48:24,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 05:48:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 05:48:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 90 proven. 196 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 05:48:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 05:48:25,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392575593] [2023-09-07 05:48:25,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392575593] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 05:48:25,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594842814] [2023-09-07 05:48:25,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 05:48:25,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 05:48:25,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 05:48:25,069 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 05:48:25,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-09-07 05:48:25,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-07 05:48:25,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 05:48:25,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 46 conjunts are in the unsatisfiable core [2023-09-07 05:48:25,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 05:48:33,806 WARN L234 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 1142 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-09-07 05:48:33,807 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 05:48:33,809 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 537 treesize of output 3589 Received shutdown request... [2023-09-07 06:02:11,967 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 06:02:11,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 06:02:11,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-09-07 06:02:11,992 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 06:02:11,992 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2023-09-07 06:02:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-09-07 06:02:12,181 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 463 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-182-3-2-3-4-1 context. [2023-09-07 06:02:12,184 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1] [2023-09-07 06:02:12,185 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2023-09-07 06:02:12,186 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 06:02:12,186 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 06:02:12,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 06:02:12 BasicIcfg [2023-09-07 06:02:12,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 06:02:12,188 INFO L158 Benchmark]: Toolchain (without parser) took 851693.71ms. Allocated memory was 290.5MB in the beginning and 924.8MB in the end (delta: 634.4MB). Free memory was 253.5MB in the beginning and 593.1MB in the end (delta: -339.6MB). Peak memory consumption was 596.5MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,188 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 06:02:12,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.24ms. Allocated memory is still 290.5MB. Free memory was 253.0MB in the beginning and 240.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.94ms. Allocated memory is still 290.5MB. Free memory was 240.4MB in the beginning and 236.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,189 INFO L158 Benchmark]: Boogie Preprocessor took 47.16ms. Allocated memory is still 290.5MB. Free memory was 236.8MB in the beginning and 234.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,189 INFO L158 Benchmark]: RCFGBuilder took 605.30ms. Allocated memory is still 290.5MB. Free memory was 234.2MB in the beginning and 200.1MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,189 INFO L158 Benchmark]: TraceAbstraction took 850805.82ms. Allocated memory was 290.5MB in the beginning and 924.8MB in the end (delta: 634.4MB). Free memory was 199.0MB in the beginning and 593.1MB in the end (delta: -394.1MB). Peak memory consumption was 542.0MB. Max. memory is 7.0GB. [2023-09-07 06:02:12,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 193.24ms. Allocated memory is still 290.5MB. Free memory was 253.0MB in the beginning and 240.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 37.94ms. Allocated memory is still 290.5MB. Free memory was 240.4MB in the beginning and 236.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 7.0GB. * Boogie Preprocessor took 47.16ms. Allocated memory is still 290.5MB. Free memory was 236.8MB in the beginning and 234.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 605.30ms. Allocated memory is still 290.5MB. Free memory was 234.2MB in the beginning and 200.1MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 7.0GB. * TraceAbstraction took 850805.82ms. Allocated memory was 290.5MB in the beginning and 924.8MB in the end (delta: 634.4MB). Free memory was 199.0MB in the beginning and 593.1MB in the end (delta: -394.1MB). Peak memory consumption was 542.0MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 259, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 259, dependent conditional: 259, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 259 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 42, RedundantProofs: 7, ProvenStates: 187 - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 463 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-182-3-2-3-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 605 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 850.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 6.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 258, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 8309 NumberOfCodeBlocks, 8020 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 10636 ConstructedInterpolants, 0 QuantifiedInterpolants, 23348 SizeOfPredicates, 126 NumberOfNonLiveVariables, 7668 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 1162/2298 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown