/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --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/unroll-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 17:07:00,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 17:07:00,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 17:07:00,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 17:07:00,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 17:07:00,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 17:07:00,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 17:07:00,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 17:07:00,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 17:07:00,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 17:07:00,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 17:07:00,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 17:07:00,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 17:07:00,104 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 17:07:00,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 17:07:00,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 17:07:00,105 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 17:07:00,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 17:07:00,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 17:07:00,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 17:07:00,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 17:07:00,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 17:07:00,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 17:07:00,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 17:07:00,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 17:07:00,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 17:07:00,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 17:07:00,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 17:07:00,114 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 17:07:00,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 17:07:00,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 17:07:00,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 17:07:00,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 17:07:00,115 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 17:07:00,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 17:07:00,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 17:07:00,116 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 17:07:00,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 17:07:00,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 17:07:00,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 17:07:00,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 17:07:00,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 17:07:00,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 17:07:00,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 17:07:00,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 17:07:00,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 17:07:00,317 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 17:07:00,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-05-30 17:07:01,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 17:07:01,555 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 17:07:01,555 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-05-30 17:07:01,565 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0263234f0/5199f8a0361e4eb08701611c83f61121/FLAG9238deeb2 [2024-05-30 17:07:01,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0263234f0/5199f8a0361e4eb08701611c83f61121 [2024-05-30 17:07:01,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 17:07:01,584 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 17:07:01,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 17:07:01,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 17:07:01,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 17:07:01,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30aa0277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01, skipping insertion in model container [2024-05-30 17:07:01,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 17:07:01,801 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/unroll-4.wvr.c[2572,2585] [2024-05-30 17:07:01,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 17:07:01,816 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 17:07:01,832 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/unroll-4.wvr.c[2572,2585] [2024-05-30 17:07:01,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 17:07:01,846 INFO L206 MainTranslator]: Completed translation [2024-05-30 17:07:01,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01 WrapperNode [2024-05-30 17:07:01,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 17:07:01,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 17:07:01,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 17:07:01,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 17:07:01,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,884 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 157 [2024-05-30 17:07:01,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 17:07:01,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 17:07:01,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 17:07:01,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 17:07:01,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 17:07:01,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 17:07:01,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 17:07:01,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 17:07:01,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (1/1) ... [2024-05-30 17:07:01,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 17:07:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:01,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-30 17:07:02,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-30 17:07:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 17:07:02,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-30 17:07:02,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-30 17:07:02,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 17:07:02,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 17:07:02,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 17:07:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 17:07:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 17:07:02,051 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 17:07:02,144 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 17:07:02,146 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 17:07:02,351 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 17:07:02,362 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 17:07:02,362 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2024-05-30 17:07:02,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 05:07:02 BoogieIcfgContainer [2024-05-30 17:07:02,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 17:07:02,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 17:07:02,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 17:07:02,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 17:07:02,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 05:07:01" (1/3) ... [2024-05-30 17:07:02,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f7827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 05:07:02, skipping insertion in model container [2024-05-30 17:07:02,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 05:07:01" (2/3) ... [2024-05-30 17:07:02,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f7827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 05:07:02, skipping insertion in model container [2024-05-30 17:07:02,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 05:07:02" (3/3) ... [2024-05-30 17:07:02,369 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2024-05-30 17:07:02,376 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 17:07:02,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 17:07:02,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 17:07:02,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 17:07:02,454 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-30 17:07:02,498 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 17:07:02,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 17:07:02,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:02,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-30 17:07:02,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-30 17:07:02,542 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 17:07:02,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-05-30 17:07:02,553 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;@39720981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 17:07:02,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 17:07:02,559 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:02,714 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:02,714 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:02,714 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:02,803 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:02,803 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:02,803 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:02,880 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:02,881 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:02,881 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:02,938 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:02,938 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:02,939 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:02,993 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:02,993 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:02,993 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,042 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,043 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,043 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,079 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,079 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,079 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,124 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,124 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,124 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,166 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,167 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,167 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,226 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,227 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,227 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,268 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,268 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,268 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,291 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,291 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,291 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,442 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,442 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,442 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,447 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 919 states. [2024-05-30 17:07:03,447 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:07:03,450 INFO L78 Accepts]: Start accepts. Automaton has currently 975 states, but on-demand construction may add more states Word has length 100 [2024-05-30 17:07:03,453 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:03,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:03,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:03,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1024753970, now seen corresponding path program 1 times [2024-05-30 17:07:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:03,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450077146] [2024-05-30 17:07:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450077146] [2024-05-30 17:07:03,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450077146] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:07:03,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:07:03,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-30 17:07:03,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399239367] [2024-05-30 17:07:03,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:07:03,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-05-30 17:07:03,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-05-30 17:07:03,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-05-30 17:07:03,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:03,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:03,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:03,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:03,774 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:03,820 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,821 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,821 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,838 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,839 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,839 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,860 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,860 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,861 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,881 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,881 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,881 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,897 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,898 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,898 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,917 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,917 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,918 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,942 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,942 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,942 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,957 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,957 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,957 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:03,974 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:03,975 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:03,975 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,002 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,003 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,003 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,023 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,023 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,023 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,039 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,039 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,039 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,119 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,119 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,119 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,134 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 997 states. [2024-05-30 17:07:04,134 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:07:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:04,135 INFO L78 Accepts]: Start accepts. Automaton has currently 1104 states, but on-demand construction may add more states Word has length 95 [2024-05-30 17:07:04,136 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:04,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 17:07:04,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:04,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:04,142 INFO L85 PathProgramCache]: Analyzing trace with hash 166445285, now seen corresponding path program 1 times [2024-05-30 17:07:04,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:04,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347371883] [2024-05-30 17:07:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:04,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:04,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:04,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:04,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347371883] [2024-05-30 17:07:04,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347371883] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:07:04,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:07:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-05-30 17:07:04,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135520435] [2024-05-30 17:07:04,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:07:04,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 17:07:04,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 17:07:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-05-30 17:07:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:04,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:04,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:04,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:04,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:04,536 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:04,667 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,667 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,667 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,682 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,682 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,682 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,702 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,702 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,702 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,720 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,721 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,721 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,737 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,739 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,740 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,758 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,759 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,759 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,781 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,781 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,781 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,796 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,797 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,797 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,813 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,814 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,814 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,846 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,846 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,847 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,865 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,866 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,866 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,883 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,883 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,884 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,954 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:04,955 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:04,955 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:04,965 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1005 states. [2024-05-30 17:07:04,966 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:07:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:04,967 INFO L78 Accepts]: Start accepts. Automaton has currently 1112 states, but on-demand construction may add more states Word has length 103 [2024-05-30 17:07:04,969 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:04,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 17:07:04,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:04,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash 537585650, now seen corresponding path program 1 times [2024-05-30 17:07:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:04,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011485168] [2024-05-30 17:07:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 17:07:05,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011485168] [2024-05-30 17:07:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011485168] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 17:07:05,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 17:07:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-05-30 17:07:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539554087] [2024-05-30 17:07:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:07:05,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-30 17:07:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-30 17:07:05,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-30 17:07:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:05,175 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:05,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:05,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:05,175 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:05,258 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,258 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,258 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,275 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,275 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,275 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,291 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,292 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,292 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,311 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,312 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,312 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,324 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,324 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,324 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,336 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,336 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,336 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,406 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,406 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,406 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,421 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,422 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,422 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,434 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,434 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,435 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,494 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:05,495 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:05,495 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:05,510 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 854 states. [2024-05-30 17:07:05,512 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 17:07:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:05,512 INFO L78 Accepts]: Start accepts. Automaton has currently 961 states, but on-demand construction may add more states Word has length 116 [2024-05-30 17:07:05,514 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:05,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-30 17:07:05,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:05,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash 110986923, now seen corresponding path program 1 times [2024-05-30 17:07:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816341266] [2024-05-30 17:07:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 17:07:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:05,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816341266] [2024-05-30 17:07:05,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816341266] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:07:05,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908826635] [2024-05-30 17:07:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:05,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:05,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:05,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:07:05,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 17:07:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:05,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-30 17:07:05,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:07:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 17:07:05,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:07:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-05-30 17:07:06,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908826635] provided 1 perfect and 1 imperfect interpolant sequences [2024-05-30 17:07:06,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-05-30 17:07:06,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 9 [2024-05-30 17:07:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321986993] [2024-05-30 17:07:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 17:07:06,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-30 17:07:06,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-30 17:07:06,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-05-30 17:07:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:06,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:06,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 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) [2024-05-30 17:07:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:06,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:06,022 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:06,064 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,065 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:06,065 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 17:07:06,082 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,082 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:06,082 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,093 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,095 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,095 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,111 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,112 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:06,113 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,129 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,129 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,129 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,150 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,151 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,151 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,162 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,162 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,162 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,174 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,174 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,174 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,195 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,195 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,195 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,210 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,210 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,210 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,223 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,223 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,223 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,344 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:06,344 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,344 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:06,350 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 982 states. [2024-05-30 17:07:06,350 INFO L212 cStratifiedReduction]: Copied states 110 times. [2024-05-30 17:07:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:06,351 INFO L78 Accepts]: Start accepts. Automaton has currently 980 states, but on-demand construction may add more states Word has length 165 [2024-05-30 17:07:06,351 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:06,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-05-30 17:07:06,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:06,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:06,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:06,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2107349627, now seen corresponding path program 1 times [2024-05-30 17:07:06,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:06,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687886635] [2024-05-30 17:07:06,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:06,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-05-30 17:07:06,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:06,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687886635] [2024-05-30 17:07:06,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687886635] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:07:06,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655952965] [2024-05-30 17:07:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:06,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:06,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:06,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:07:06,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 17:07:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:06,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 33 conjunts are in the unsatisfiable core [2024-05-30 17:07:06,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:07:07,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-05-30 17:07:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:07,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:07:08,097 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-05-30 17:07:08,098 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 19 treesize of output 7 [2024-05-30 17:07:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:08,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655952965] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:07:08,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:07:08,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 18, 18] total 33 [2024-05-30 17:07:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146843020] [2024-05-30 17:07:08,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:07:08,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-05-30 17:07:08,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-05-30 17:07:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2024-05-30 17:07:08,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:08,794 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:08,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.333333333333334) internal successors, (440), 33 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:08,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:08,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:08,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:08,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:08,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:08,795 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:09,579 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,579 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:09,580 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,592 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,593 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,593 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,721 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,721 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:09,721 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,734 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,735 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,735 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,769 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,770 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:09,770 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,783 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,783 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,783 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,808 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,809 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:09,809 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,829 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,830 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,830 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,851 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,852 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,852 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,869 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,869 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,869 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,896 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,897 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,897 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,930 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,931 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,931 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,947 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,948 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,948 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,964 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,965 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,965 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,993 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:09,993 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:09,993 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,017 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:10,017 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,017 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,035 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:10,035 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,035 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,114 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:10,114 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,114 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:10,151 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1379 states. [2024-05-30 17:07:10,152 INFO L212 cStratifiedReduction]: Copied states 220 times. [2024-05-30 17:07:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:10,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:07:10,152 INFO L78 Accepts]: Start accepts. Automaton has currently 1271 states, but on-demand construction may add more states Word has length 186 [2024-05-30 17:07:10,153 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:10,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-30 17:07:10,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:10,360 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:10,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 232623943, now seen corresponding path program 2 times [2024-05-30 17:07:10,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:10,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079254032] [2024-05-30 17:07:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:10,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-05-30 17:07:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079254032] [2024-05-30 17:07:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079254032] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:07:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723146550] [2024-05-30 17:07:10,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 17:07:10,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:10,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:10,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:07:10,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 17:07:10,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 17:07:10,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:07:10,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 82 conjunts are in the unsatisfiable core [2024-05-30 17:07:10,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:07:11,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-05-30 17:07:11,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-30 17:07:11,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-05-30 17:07:13,318 INFO L349 Elim1Store]: treesize reduction 34, result has 30.6 percent of original size [2024-05-30 17:07:13,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 48 [2024-05-30 17:07:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:13,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:07:17,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:07:17,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 496 treesize of output 292 [2024-05-30 17:07:17,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:07:17,755 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 10 new quantified variables, introduced 15 case distinctions, treesize of input 780 treesize of output 820 [2024-05-30 17:07:17,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:07:17,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 636 treesize of output 604 [2024-05-30 17:07:18,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:07:18,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 261 treesize of output 337 [2024-05-30 17:07:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:07:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723146550] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:07:31,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:07:31,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 44, 40] total 85 [2024-05-30 17:07:31,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995968016] [2024-05-30 17:07:31,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:07:31,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-05-30 17:07:31,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-05-30 17:07:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=6533, Unknown=52, NotChecked=0, Total=7140 [2024-05-30 17:07:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:31,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:31,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 6.188235294117647) internal successors, (526), 85 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:07:31,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:31,257 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:35,182 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:35,183 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:35,183 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:35,190 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:35,190 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:35,190 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:35,866 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:35,866 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:35,866 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:35,874 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:35,874 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:35,874 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,144 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,144 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:36,144 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,150 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,150 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,151 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,231 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,231 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:36,231 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,237 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,237 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,237 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,251 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,251 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:36,252 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,261 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,261 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,261 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,273 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,273 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,273 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,283 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,283 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,283 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,314 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,315 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,315 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,350 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,350 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,350 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,358 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,358 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,358 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,366 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,366 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,366 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,379 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,379 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,380 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,389 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,389 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,389 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,398 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,398 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,398 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,511 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:36,512 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,512 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:36,632 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1529 states. [2024-05-30 17:07:36,632 INFO L212 cStratifiedReduction]: Copied states 275 times. [2024-05-30 17:07:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:07:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:07:36,633 INFO L78 Accepts]: Start accepts. Automaton has currently 1366 states, but on-demand construction may add more states Word has length 207 [2024-05-30 17:07:36,634 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:36,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 17:07:36,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:36,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:36,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1809649611, now seen corresponding path program 3 times [2024-05-30 17:07:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:36,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641897228] [2024-05-30 17:07:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:36,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:07:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-05-30 17:07:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:07:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641897228] [2024-05-30 17:07:37,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641897228] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:07:37,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091562079] [2024-05-30 17:07:37,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-30 17:07:37,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:07:37,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:07:37,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:07:37,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 17:07:37,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-05-30 17:07:37,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:07:37,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 16 conjunts are in the unsatisfiable core [2024-05-30 17:07:37,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:07:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 42 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-05-30 17:07:37,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:07:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 42 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-05-30 17:07:37,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091562079] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:07:37,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:07:37,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2024-05-30 17:07:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984794669] [2024-05-30 17:07:37,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:07:37,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-05-30 17:07:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:07:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-05-30 17:07:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-05-30 17:07:37,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:37,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:07:37,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.625) internal successors, (279), 24 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:07:37,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:37,812 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:07:37,879 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:37,879 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:37,879 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:37,886 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:37,886 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:37,886 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:37,941 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:37,941 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:37,941 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:37,947 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:37,947 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:37,948 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,010 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,010 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:38,010 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,017 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,017 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,017 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,094 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,094 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:38,094 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,101 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,101 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,101 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,127 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,127 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:38,127 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,133 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,133 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,133 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,146 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,146 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:07:38,146 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,155 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,155 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,155 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,165 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,165 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,165 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,172 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,172 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,172 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,181 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,182 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,182 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,193 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,193 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,193 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,201 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,201 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,201 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,209 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,209 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,209 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,222 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,223 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,223 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,233 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,233 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,233 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,241 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,241 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,241 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,279 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:07:38,279 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,279 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:07:38,296 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1670 states. [2024-05-30 17:07:38,296 INFO L212 cStratifiedReduction]: Copied states 330 times. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:07:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:07:38,297 INFO L78 Accepts]: Start accepts. Automaton has currently 1452 states, but on-demand construction may add more states Word has length 220 [2024-05-30 17:07:38,298 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:07:38,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 17:07:38,503 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,SelfDestructingSolverStorable6 [2024-05-30 17:07:38,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:07:38,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:07:38,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1561095174, now seen corresponding path program 4 times [2024-05-30 17:07:38,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:07:38,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572410788] [2024-05-30 17:07:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:07:38,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:07:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:09,821 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:09,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:09,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572410788] [2024-05-30 17:08:09,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572410788] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:09,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009907742] [2024-05-30 17:08:09,822 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-30 17:08:09,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:09,823 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:08:09,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-30 17:08:09,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-30 17:08:09,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:08:09,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 91 conjunts are in the unsatisfiable core [2024-05-30 17:08:09,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:14,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-30 17:08:14,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 94 [2024-05-30 17:08:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:15,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:21,144 INFO L349 Elim1Store]: treesize reduction 20, result has 92.7 percent of original size [2024-05-30 17:08:21,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 284 treesize of output 344 [2024-05-30 17:08:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-30 17:08:24,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009907742] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:24,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:24,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 46, 46] total 138 [2024-05-30 17:08:24,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898272661] [2024-05-30 17:08:24,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:24,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-05-30 17:08:24,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:24,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-05-30 17:08:24,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1136, Invalid=17770, Unknown=0, NotChecked=0, Total=18906 [2024-05-30 17:08:24,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:24,601 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:24,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 4.463768115942029) internal successors, (616), 138 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:08:24,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:24,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:08:24,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:24,602 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:30,213 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,213 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:30,213 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:30,221 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:30,222 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:30,222 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:31,614 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,615 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:31,615 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:31,621 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:31,621 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:31,621 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:32,710 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,710 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:32,710 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:32,715 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:32,715 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:32,715 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:33,716 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,716 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:33,716 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:33,723 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:33,723 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:33,723 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,210 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,210 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:36,210 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,218 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,218 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,218 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,600 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,601 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:36,601 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,612 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,612 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,612 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,659 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,660 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,660 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,672 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,672 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,672 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,683 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,684 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,684 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,701 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,701 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,702 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,716 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,716 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,716 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,728 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,729 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,729 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,790 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:36,790 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,790 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:36,922 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1618 states. [2024-05-30 17:08:36,923 INFO L212 cStratifiedReduction]: Copied states 330 times. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-05-30 17:08:36,924 INFO L78 Accepts]: Start accepts. Automaton has currently 1443 states, but on-demand construction may add more states Word has length 241 [2024-05-30 17:08:36,925 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:36,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-05-30 17:08:37,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:37,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:37,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1112693982, now seen corresponding path program 5 times [2024-05-30 17:08:37,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:37,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418350340] [2024-05-30 17:08:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:37,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-30 17:08:37,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:37,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418350340] [2024-05-30 17:08:37,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418350340] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:37,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411671391] [2024-05-30 17:08:37,860 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-30 17:08:37,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:37,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:37,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:08:37,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-30 17:08:38,225 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-05-30 17:08:38,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:08:38,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 40 conjunts are in the unsatisfiable core [2024-05-30 17:08:38,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-30 17:08:38,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-30 17:08:39,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411671391] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:39,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:39,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 21] total 52 [2024-05-30 17:08:39,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424243979] [2024-05-30 17:08:39,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:39,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-05-30 17:08:39,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:39,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-05-30 17:08:39,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=2419, Unknown=0, NotChecked=0, Total=2652 [2024-05-30 17:08:39,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:39,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:39,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.634615384615385) internal successors, (397), 52 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-05-30 17:08:39,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:39,325 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:39,469 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,470 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:39,470 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,476 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,476 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,476 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,622 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,622 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:39,622 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,628 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,628 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,628 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,779 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,779 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:39,779 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,785 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,785 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,785 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,928 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,928 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:39,928 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,934 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:39,934 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:39,934 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:40,397 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:40,397 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:40,397 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:40,404 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:40,404 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:40,404 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:41,237 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,237 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:41,237 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,245 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:41,245 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:41,246 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,769 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,769 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:42,769 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,777 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,777 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,777 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,857 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,857 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,857 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,878 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,878 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,878 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,898 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,898 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,898 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,921 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,922 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,922 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,938 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,938 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,938 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,954 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,954 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,954 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,982 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:42,982 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:42,983 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,007 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:43,007 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,007 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,025 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:43,025 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,025 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,099 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:43,099 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,099 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:43,956 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 2771 states. [2024-05-30 17:08:43,956 INFO L212 cStratifiedReduction]: Copied states 385 times. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-05-30 17:08:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-05-30 17:08:43,957 INFO L78 Accepts]: Start accepts. Automaton has currently 2680 states, but on-demand construction may add more states Word has length 290 [2024-05-30 17:08:43,958 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:08:43,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-30 17:08:44,159 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,SelfDestructingSolverStorable8 [2024-05-30 17:08:44,159 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:08:44,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:08:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash -325896476, now seen corresponding path program 6 times [2024-05-30 17:08:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:08:44,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579968671] [2024-05-30 17:08:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:08:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:08:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 17:08:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 47 proven. 139 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-05-30 17:08:44,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 17:08:44,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579968671] [2024-05-30 17:08:44,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579968671] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-30 17:08:44,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012917632] [2024-05-30 17:08:44,974 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-05-30 17:08:44,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:08:44,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 17:08:44,976 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-30 17:08:44,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-30 17:08:45,335 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-05-30 17:08:45,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 17:08:45,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 24 conjunts are in the unsatisfiable core [2024-05-30 17:08:45,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 17:08:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-05-30 17:08:45,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 17:08:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-05-30 17:08:46,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012917632] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 17:08:46,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-30 17:08:46,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 14, 14] total 42 [2024-05-30 17:08:46,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171368606] [2024-05-30 17:08:46,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-30 17:08:46,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-05-30 17:08:46,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 17:08:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-05-30 17:08:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1562, Unknown=0, NotChecked=0, Total=1722 [2024-05-30 17:08:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:46,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 17:08:46,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.80952380952381) internal successors, (370), 42 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 17:08:46,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2024-05-30 17:08:46,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:08:46,113 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 17:08:46,269 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,269 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,269 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,274 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,275 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,275 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,411 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,411 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,411 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,417 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,417 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,417 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,558 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,558 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,558 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,564 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,564 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,564 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,684 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,684 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,684 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,690 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,690 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,690 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,838 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,838 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,838 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,844 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,845 INFO L394 cStratifiedReduction]: Guessed abstraction level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,845 INFO L395 cStratifiedReduction]: Actual level: [~n~0, thread2Thread1of1ForFork1_~i~1#1] [2024-05-30 17:08:46,960 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,960 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:08:46,960 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,967 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:08:46,967 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:08:46,967 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:00,192 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 65 DAG size of output: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-30 17:09:02,429 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:02,429 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:09:02,429 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:02,436 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:02,436 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:02,436 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:18,255 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:18,256 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:09:18,256 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:18,263 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:18,263 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:18,263 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:23,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-30 17:09:26,458 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:26,458 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:09:26,458 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:26,466 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:26,466 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:26,466 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:36,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-30 17:09:48,363 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 65 DAG size of output: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-05-30 17:09:53,577 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:53,577 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:09:53,577 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:53,585 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:09:53,585 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:09:53,585 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,839 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,839 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 17:10:18,839 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,850 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,850 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,850 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,869 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,869 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,869 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,888 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,888 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,888 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,911 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,911 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,911 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,937 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,937 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,937 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,957 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,957 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,957 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,977 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:18,978 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:18,978 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,008 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:19,008 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,008 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,033 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:19,033 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,033 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,056 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:19,056 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,056 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,135 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:19,135 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,135 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,393 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:19,393 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:19,393 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:23,592 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:23,592 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:23,592 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:26,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-05-30 17:10:29,445 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,445 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,445 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,470 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,470 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,470 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,497 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,497 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,497 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,527 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,527 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,527 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,561 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,561 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,561 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,588 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,588 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,588 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,690 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,691 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,691 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,716 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,716 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,717 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,736 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,736 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,736 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,753 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,753 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,753 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,821 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 17:10:29,821 INFO L394 cStratifiedReduction]: Guessed abstraction level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:29,821 INFO L395 cStratifiedReduction]: Actual level: [thread2Thread1of1ForFork1_#t~post4#1, thread2Thread1of1ForFork1_#t~post6#1, thread2Thread1of1ForFork1_#t~post8#1, thread1Thread1of1ForFork0_#t~post2#1, ~n~0, thread2Thread1of1ForFork1_#t~post10#1, thread2Thread1of1ForFork1_~i~1#1, thread1Thread1of1ForFork0_~i~0#1] [2024-05-30 17:10:30,181 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 5205 states. [2024-05-30 17:10:30,181 INFO L212 cStratifiedReduction]: Copied states 605 times. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-05-30 17:10:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-05-30 17:10:30,182 INFO L78 Accepts]: Start accepts. Automaton has currently 5193 states, but on-demand construction may add more states Word has length 329 [2024-05-30 17:10:30,184 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 17:10:30,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-05-30 17:10:30,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 17:10:30,393 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-30 17:10:30,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 17:10:30,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1575294233, now seen corresponding path program 7 times [2024-05-30 17:10:30,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 17:10:30,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266851224] [2024-05-30 17:10:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 17:10:30,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 17:10:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2024-05-30 17:20:00,231 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-30 17:20:00,231 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-30 17:20:00,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-05-30 17:20:00,238 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Termination requested (timeout or resource limit) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1451) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$MixedLAInterpolator.convert(Interpolator.java:1314) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:158) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:86) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:319) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.mixedPivotLA(Interpolator.java:1496) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.combine(Interpolator.java:450) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$CombineInterpolants.walk(Interpolator.java:175) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:869) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:793) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-05-30 17:20:00,241 INFO L158 Benchmark]: Toolchain (without parser) took 778657.02ms. Allocated memory was 325.1MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 250.8MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2024-05-30 17:20:00,241 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 17:20:00,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.22ms. Allocated memory is still 325.1MB. Free memory was 250.6MB in the beginning and 288.9MB in the end (delta: -38.2MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2024-05-30 17:20:00,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.06ms. Allocated memory is still 325.1MB. Free memory was 288.9MB in the beginning and 286.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 17:20:00,242 INFO L158 Benchmark]: Boogie Preprocessor took 20.16ms. Allocated memory is still 325.1MB. Free memory was 286.9MB in the beginning and 285.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-05-30 17:20:00,242 INFO L158 Benchmark]: RCFGBuilder took 456.41ms. Allocated memory is still 325.1MB. Free memory was 285.3MB in the beginning and 265.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-05-30 17:20:00,242 INFO L158 Benchmark]: TraceAbstraction took 777876.52ms. Allocated memory was 325.1MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 264.9MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. [2024-05-30 17:20:00,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.22ms. Allocated memory is still 325.1MB. Free memory was 250.6MB in the beginning and 288.9MB in the end (delta: -38.2MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.06ms. Allocated memory is still 325.1MB. Free memory was 288.9MB in the beginning and 286.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.16ms. Allocated memory is still 325.1MB. Free memory was 286.9MB in the beginning and 285.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 456.41ms. Allocated memory is still 325.1MB. Free memory was 285.3MB in the beginning and 265.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 777876.52ms. Allocated memory was 325.1MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 264.9MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 4.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Termination requested (timeout or resource limit) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Termination requested (timeout or resource limit): de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1451) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown