/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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/popl20-queue-add-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 01:59:23,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 01:59:23,472 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 01:59:23,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 01:59:23,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 01:59:23,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 01:59:23,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 01:59:23,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 01:59:23,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 01:59:23,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 01:59:23,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 01:59:23,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 01:59:23,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 01:59:23,506 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 01:59:23,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 01:59:23,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 01:59:23,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 01:59:23,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 01:59:23,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 01:59:23,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 01:59:23,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 01:59:23,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 01:59:23,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 01:59:23,509 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 01:59:23,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 01:59:23,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:59:23,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 01:59:23,510 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 01:59:23,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 01:59:23,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 01:59:23,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 01:59:23,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 01:59:23,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 01:59:23,737 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 01:59:23,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-01-26 01:59:24,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 01:59:24,876 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 01:59:24,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2024-01-26 01:59:24,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1627da6d/817f2f64bacf4ff2a435e61f3de17aca/FLAGb20f0f26a [2024-01-26 01:59:24,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f1627da6d/817f2f64bacf4ff2a435e61f3de17aca [2024-01-26 01:59:24,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 01:59:24,901 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 01:59:24,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 01:59:24,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 01:59:24,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 01:59:24,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:59:24" (1/1) ... [2024-01-26 01:59:24,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a45011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:24, skipping insertion in model container [2024-01-26 01:59:24,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:59:24" (1/1) ... [2024-01-26 01:59:24,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 01:59:25,065 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2024-01-26 01:59:25,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:59:25,080 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 01:59:25,098 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c[2722,2735] [2024-01-26 01:59:25,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:59:25,114 INFO L206 MainTranslator]: Completed translation [2024-01-26 01:59:25,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25 WrapperNode [2024-01-26 01:59:25,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 01:59:25,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 01:59:25,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 01:59:25,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 01:59:25,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,145 INFO L138 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 161 [2024-01-26 01:59:25,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 01:59:25,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 01:59:25,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 01:59:25,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 01:59:25,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 01:59:25,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 01:59:25,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 01:59:25,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 01:59:25,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (1/1) ... [2024-01-26 01:59:25,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:59:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:25,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-01-26 01:59:25,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-01-26 01:59:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 01:59:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 01:59:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 01:59:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 01:59:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 01:59:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 01:59:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 01:59:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 01:59:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 01:59:25,229 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 01:59:25,300 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 01:59:25,301 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 01:59:25,527 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 01:59:25,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 01:59:25,582 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-26 01:59:25,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:59:25 BoogieIcfgContainer [2024-01-26 01:59:25,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 01:59:25,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 01:59:25,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 01:59:25,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 01:59:25,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 01:59:24" (1/3) ... [2024-01-26 01:59:25,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46da589e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:59:25, skipping insertion in model container [2024-01-26 01:59:25,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:59:25" (2/3) ... [2024-01-26 01:59:25,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46da589e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:59:25, skipping insertion in model container [2024-01-26 01:59:25,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:59:25" (3/3) ... [2024-01-26 01:59:25,594 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2024-01-26 01:59:25,600 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 01:59:25,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 01:59:25,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 01:59:25,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 01:59:25,642 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-26 01:59:25,678 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:59:25,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 01:59:25,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:25,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-01-26 01:59:25,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-01-26 01:59:25,711 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 01:59:25,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 01:59:25,722 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;@4db3638, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:59:25,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 01:59:25,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:25,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2066063983, now seen corresponding path program 1 times [2024-01-26 01:59:25,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763684832] [2024-01-26 01:59:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:25,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 01:59:26,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:26,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763684832] [2024-01-26 01:59:26,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763684832] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:59:26,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:59:26,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 01:59:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303684381] [2024-01-26 01:59:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:59:26,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 01:59:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:26,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 01:59:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 01:59:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,068 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:26,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:26,069 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 [2024-01-26 01:59:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 01:59:26,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:26,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash 136678323, now seen corresponding path program 1 times [2024-01-26 01:59:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400513072] [2024-01-26 01:59:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:26,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 01:59:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:26,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400513072] [2024-01-26 01:59:26,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400513072] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:59:26,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:59:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 01:59:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695767168] [2024-01-26 01:59:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:59:26,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 01:59:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:26,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 01:59:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 01:59:26,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,426 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:26,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:26,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,427 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 [2024-01-26 01:59:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:26,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 01:59:26,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:26,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:26,476 INFO L85 PathProgramCache]: Analyzing trace with hash 621031234, now seen corresponding path program 2 times [2024-01-26 01:59:26,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:26,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217583524] [2024-01-26 01:59:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:26,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217583524] [2024-01-26 01:59:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217583524] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755037479] [2024-01-26 01:59:26,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:59:26,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:26,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:26,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:26,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-26 01:59:26,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:59:26,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:26,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-26 01:59:26,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 01:59:27,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 01:59:27,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755037479] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:27,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:27,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-01-26 01:59:27,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318195576] [2024-01-26 01:59:27,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:27,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-01-26 01:59:27,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:27,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-01-26 01:59:27,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-01-26 01:59:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:27,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:27,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.578947368421053) internal successors, (182), 19 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:27,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:27,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:27,423 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 [2024-01-26 01:59:27,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:27,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:27,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-26 01:59:27,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:27,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash 198061816, now seen corresponding path program 3 times [2024-01-26 01:59:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:27,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433642118] [2024-01-26 01:59:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:29,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:29,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433642118] [2024-01-26 01:59:29,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433642118] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:29,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880822578] [2024-01-26 01:59:29,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 01:59:29,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:29,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:29,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:29,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-26 01:59:29,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-01-26 01:59:29,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:29,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjunts are in the unsatisfiable core [2024-01-26 01:59:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-01-26 01:59:29,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:29,406 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-01-26 01:59:29,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-01-26 01:59:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-01-26 01:59:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880822578] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:29,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5] total 29 [2024-01-26 01:59:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525823691] [2024-01-26 01:59:29,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:29,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-01-26 01:59:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:29,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-01-26 01:59:29,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2024-01-26 01:59:29,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:29,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:29,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.10344827586207) internal successors, (235), 29 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:29,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:29,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:29,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:29,469 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 [2024-01-26 01:59:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:30,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:30,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:30,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:30,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:30,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash 871843080, now seen corresponding path program 1 times [2024-01-26 01:59:30,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104721513] [2024-01-26 01:59:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:32,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104721513] [2024-01-26 01:59:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104721513] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763227579] [2024-01-26 01:59:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:32,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:32,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:32,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:32,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-26 01:59:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:32,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 39 conjunts are in the unsatisfiable core [2024-01-26 01:59:32,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 1 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:33,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:33,629 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-01-26 01:59:33,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-01-26 01:59:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 1 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:34,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763227579] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:34,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 22] total 66 [2024-01-26 01:59:34,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219608200] [2024-01-26 01:59:34,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:34,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-01-26 01:59:34,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-01-26 01:59:34,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=827, Invalid=3463, Unknown=0, NotChecked=0, Total=4290 [2024-01-26 01:59:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:34,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:34,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.924242424242424) internal successors, (391), 66 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:34,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:34,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:34,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:34,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:34,912 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 [2024-01-26 01:59:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 01:59:36,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:36,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:36,473 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:36,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1984962549, now seen corresponding path program 2 times [2024-01-26 01:59:36,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:36,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239262913] [2024-01-26 01:59:36,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:36,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:39,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:39,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239262913] [2024-01-26 01:59:39,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239262913] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:39,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531509697] [2024-01-26 01:59:39,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:59:39,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:39,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:39,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-26 01:59:39,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:59:39,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:39,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 46 conjunts are in the unsatisfiable core [2024-01-26 01:59:39,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:40,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:40,864 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 01:59:40,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 01:59:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:42,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531509697] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:42,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:42,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 80 [2024-01-26 01:59:42,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547387112] [2024-01-26 01:59:42,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:42,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-01-26 01:59:42,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:42,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-01-26 01:59:42,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1038, Invalid=5282, Unknown=0, NotChecked=0, Total=6320 [2024-01-26 01:59:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:42,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:42,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 5.6625) internal successors, (453), 80 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:42,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:42,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:42,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:42,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:42,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 01:59:42,315 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 [2024-01-26 01:59:44,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 01:59:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 01:59:44,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:44,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-01-26 01:59:44,615 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:44,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1138216724, now seen corresponding path program 3 times [2024-01-26 01:59:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:44,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493555023] [2024-01-26 01:59:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:59:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 4 proven. 331 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 01:59:49,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:59:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493555023] [2024-01-26 01:59:49,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493555023] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:59:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96723938] [2024-01-26 01:59:49,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 01:59:49,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:49,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:59:49,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:59:49,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-26 01:59:49,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-01-26 01:59:49,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:59:49,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2024-01-26 01:59:49,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:59:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-01-26 01:59:49,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:59:49,824 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 01:59:49,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 01:59:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-01-26 01:59:49,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96723938] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:59:49,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:59:49,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 7, 7] total 47 [2024-01-26 01:59:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620351788] [2024-01-26 01:59:49,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:59:49,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-01-26 01:59:49,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:59:49,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-01-26 01:59:49,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=2051, Unknown=0, NotChecked=0, Total=2162 [2024-01-26 01:59:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:49,935 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:59:49,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 01:59:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 01:59:49,935 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 [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 01:59:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 01:59:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 01:59:56,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-26 01:59:57,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:59:57,032 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:59:57,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:59:57,033 INFO L85 PathProgramCache]: Analyzing trace with hash -458916700, now seen corresponding path program 4 times [2024-01-26 01:59:57,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:59:57,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877481275] [2024-01-26 01:59:57,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:59:57,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:59:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:00:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 489 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-01-26 02:00:01,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:00:01,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877481275] [2024-01-26 02:00:01,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877481275] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:00:01,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463354102] [2024-01-26 02:00:01,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-26 02:00:01,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:00:01,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:00:01,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:00:01,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-01-26 02:00:02,028 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-26 02:00:02,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:00:02,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 74 conjunts are in the unsatisfiable core [2024-01-26 02:00:02,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:00:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 1 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:03,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:00:03,884 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:00:03,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:00:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:06,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463354102] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:00:06,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:00:06,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37, 37] total 105 [2024-01-26 02:00:06,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681638555] [2024-01-26 02:00:06,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:00:06,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-01-26 02:00:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:00:06,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-01-26 02:00:06,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1615, Invalid=9305, Unknown=0, NotChecked=0, Total=10920 [2024-01-26 02:00:06,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:06,078 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:00:06,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 5.266666666666667) internal successors, (553), 105 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:06,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:06,079 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 [2024-01-26 02:00:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:00:09,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-01-26 02:00:09,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-01-26 02:00:09,900 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:00:09,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:00:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1999275436, now seen corresponding path program 5 times [2024-01-26 02:00:09,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:00:09,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833874426] [2024-01-26 02:00:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:00:09,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:00:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:00:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 5 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:17,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:00:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833874426] [2024-01-26 02:00:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833874426] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:00:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888269292] [2024-01-26 02:00:17,299 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-26 02:00:17,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:00:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:00:17,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:00:17,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-01-26 02:00:17,594 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-01-26 02:00:17,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:00:17,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 79 conjunts are in the unsatisfiable core [2024-01-26 02:00:17,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:00:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 4 proven. 735 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-26 02:00:19,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:00:19,854 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:00:19,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:00:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-01-26 02:00:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888269292] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:00:20,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:00:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 37, 10] total 89 [2024-01-26 02:00:20,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095899233] [2024-01-26 02:00:20,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:00:20,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2024-01-26 02:00:20,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:00:20,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2024-01-26 02:00:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=7605, Unknown=0, NotChecked=0, Total=7832 [2024-01-26 02:00:20,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:20,015 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:00:20,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 5.50561797752809) internal successors, (490), 89 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:00:20,016 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 [2024-01-26 02:00:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:00:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:00:29,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-01-26 02:00:30,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:00:30,045 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:00:30,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:00:30,045 INFO L85 PathProgramCache]: Analyzing trace with hash 261219370, now seen corresponding path program 6 times [2024-01-26 02:00:30,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:00:30,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747023099] [2024-01-26 02:00:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:00:30,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:00:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:00:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 9 proven. 1018 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:38,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:00:38,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747023099] [2024-01-26 02:00:38,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747023099] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:00:38,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747312432] [2024-01-26 02:00:38,815 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-01-26 02:00:38,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:00:38,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:00:38,816 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:00:38,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-01-26 02:00:39,403 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-01-26 02:00:39,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:00:39,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 29 conjunts are in the unsatisfiable core [2024-01-26 02:00:39,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:00:41,279 INFO L349 Elim1Store]: treesize reduction 86, result has 3.4 percent of original size [2024-01-26 02:00:41,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 22 [2024-01-26 02:00:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 6 proven. 166 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2024-01-26 02:00:41,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:00:42,218 INFO L349 Elim1Store]: treesize reduction 63, result has 27.6 percent of original size [2024-01-26 02:00:42,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 48 [2024-01-26 02:00:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 9 proven. 163 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2024-01-26 02:00:42,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747312432] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:00:42,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:00:42,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 15, 15] total 83 [2024-01-26 02:00:42,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988189359] [2024-01-26 02:00:42,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:00:42,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-01-26 02:00:42,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:00:42,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-01-26 02:00:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=6527, Unknown=0, NotChecked=0, Total=6806 [2024-01-26 02:00:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:42,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:00:42,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 6.27710843373494) internal successors, (521), 83 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:42,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:42,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:00:42,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:00:42,891 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 [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:00:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:00:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:00:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:00:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:00:49,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-01-26 02:00:49,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-01-26 02:00:49,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:00:49,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:00:49,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1429927368, now seen corresponding path program 7 times [2024-01-26 02:00:49,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:00:49,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104247114] [2024-01-26 02:00:49,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:00:49,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:00:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:00:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 5 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:55,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:00:55,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104247114] [2024-01-26 02:00:55,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104247114] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:00:55,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310827338] [2024-01-26 02:00:55,156 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-01-26 02:00:55,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:00:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:00:55,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:00:55,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-01-26 02:00:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:00:55,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 104 conjunts are in the unsatisfiable core [2024-01-26 02:00:55,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:00:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 1130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:00:58,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:00:59,234 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:00:59,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:01:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 1130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:01:02,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310827338] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:01:02,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:01:02,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 53, 53] total 156 [2024-01-26 02:01:02,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448611980] [2024-01-26 02:01:02,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:01:02,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 156 states [2024-01-26 02:01:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:01:02,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2024-01-26 02:01:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3499, Invalid=20681, Unknown=0, NotChecked=0, Total=24180 [2024-01-26 02:01:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:02,803 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:01:02,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 156 states, 156 states have (on average 4.935897435897436) internal successors, (770), 156 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:01:02,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:01:02,804 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 [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:01:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:01:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:01:08,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-01-26 02:01:09,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-01-26 02:01:09,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:01:09,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:01:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2039470753, now seen corresponding path program 8 times [2024-01-26 02:01:09,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:01:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625765966] [2024-01-26 02:01:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:01:09,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:01:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:01:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 18 proven. 1413 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:01:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:01:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625765966] [2024-01-26 02:01:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625765966] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:01:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109251687] [2024-01-26 02:01:15,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 02:01:15,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:01:15,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:01:15,113 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:01:15,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-01-26 02:01:15,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 02:01:15,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:01:15,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 114 conjunts are in the unsatisfiable core [2024-01-26 02:01:15,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:01:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:01:18,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:01:19,168 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:01:19,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:01:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:01:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109251687] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:01:22,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:01:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 58, 58] total 171 [2024-01-26 02:01:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023484298] [2024-01-26 02:01:22,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:01:22,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 171 states [2024-01-26 02:01:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:01:22,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2024-01-26 02:01:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5202, Invalid=23868, Unknown=0, NotChecked=0, Total=29070 [2024-01-26 02:01:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:22,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:01:22,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 171 states, 171 states have (on average 4.871345029239766) internal successors, (833), 171 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:01:22,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:01:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:01:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:01:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:01:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:01:22,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:01:22,842 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 [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:01:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:01:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:01:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:01:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:01:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:01:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:01:29,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-01-26 02:01:29,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:01:29,487 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:01:29,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:01:29,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1152472260, now seen corresponding path program 9 times [2024-01-26 02:01:29,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:01:29,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208086643] [2024-01-26 02:01:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:01:29,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:01:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 32 proven. 1737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:02:16,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:16,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208086643] [2024-01-26 02:02:16,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208086643] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:02:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958274088] [2024-01-26 02:02:16,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 02:02:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:16,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:02:16,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-01-26 02:02:17,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-01-26 02:02:17,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:02:17,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 23 conjunts are in the unsatisfiable core [2024-01-26 02:02:17,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:02:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2024-01-26 02:02:17,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:02:18,184 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:02:18,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:02:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2024-01-26 02:02:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958274088] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:02:18,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:02:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 13, 13] total 83 [2024-01-26 02:02:18,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769039673] [2024-01-26 02:02:18,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:02:18,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-01-26 02:02:18,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:18,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-01-26 02:02:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=6174, Unknown=0, NotChecked=0, Total=6806 [2024-01-26 02:02:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:18,359 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:18,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 6.108433734939759) internal successors, (507), 83 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:02:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:02:18,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:02:18,360 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 [2024-01-26 02:02:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:02:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-01-26 02:02:22,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-01-26 02:02:22,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-01-26 02:02:22,908 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:02:22,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:02:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -977453228, now seen corresponding path program 10 times [2024-01-26 02:02:22,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:02:22,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733882205] [2024-01-26 02:02:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:02:22,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:02:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:02:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2103 backedges. 5 proven. 2098 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:02:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:02:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733882205] [2024-01-26 02:02:32,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733882205] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:02:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86848735] [2024-01-26 02:02:32,798 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-26 02:02:32,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:02:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:02:32,807 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:02:32,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-01-26 02:02:33,762 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-26 02:02:33,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:02:33,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 118 conjunts are in the unsatisfiable core [2024-01-26 02:02:33,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:02:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2103 backedges. 4 proven. 2099 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:02:39,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:02:41,217 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:02:41,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:02:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2103 backedges. 5 proven. 2098 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:02:47,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86848735] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:02:47,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:02:47,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 68, 68] total 205 [2024-01-26 02:02:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921006907] [2024-01-26 02:02:47,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:02:47,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2024-01-26 02:02:47,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:02:47,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2024-01-26 02:02:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4289, Invalid=37531, Unknown=0, NotChecked=0, Total=41820 [2024-01-26 02:02:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:47,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:02:47,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 4.726829268292683) internal successors, (969), 205 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:02:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:02:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:02:47,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:02:47,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2024-01-26 02:02:47,876 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 [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-01-26 02:03:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2024-01-26 02:03:04,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-01-26 02:03:05,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-01-26 02:03:05,185 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:03:05,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:03:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 246917175, now seen corresponding path program 11 times [2024-01-26 02:03:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:03:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913464155] [2024-01-26 02:03:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:03:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:03:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 02:03:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2510 backedges. 32 proven. 2478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 02:03:30,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 02:03:30,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913464155] [2024-01-26 02:03:30,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913464155] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 02:03:30,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131600477] [2024-01-26 02:03:30,994 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-26 02:03:30,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 02:03:30,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 02:03:30,995 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 02:03:30,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-01-26 02:03:31,684 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-01-26 02:03:31,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 02:03:31,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 131 conjunts are in the unsatisfiable core [2024-01-26 02:03:31,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 02:03:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2510 backedges. 0 proven. 2498 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-01-26 02:03:34,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 02:03:35,241 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-01-26 02:03:35,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2024-01-26 02:03:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2510 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 2079 trivial. 0 not checked. [2024-01-26 02:03:35,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131600477] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 02:03:35,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 02:03:35,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 64, 15] total 145 [2024-01-26 02:03:35,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211127655] [2024-01-26 02:03:35,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 02:03:35,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-01-26 02:03:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 02:03:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-01-26 02:03:35,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=888, Invalid=19992, Unknown=0, NotChecked=0, Total=20880 [2024-01-26 02:03:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:03:35,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 02:03:35,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 5.172413793103448) internal successors, (750), 145 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2024-01-26 02:03:35,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2024-01-26 02:03:35,452 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 [2024-01-26 02:03:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-01-26 02:03:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2024-01-26 02:03:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-01-26 02:03:45,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-01-26 02:03:45,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-01-26 02:03:45,855 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 02:03:45,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 02:03:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2090855494, now seen corresponding path program 12 times [2024-01-26 02:03:45,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 02:03:45,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497075229] [2024-01-26 02:03:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 02:03:45,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 02:03:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat