/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 07:48:17,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 07:48:17,884 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 07:48:17,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 07:48:17,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 07:48:17,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 07:48:17,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 07:48:17,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 07:48:17,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 07:48:17,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 07:48:17,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 07:48:17,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 07:48:17,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 07:48:17,915 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 07:48:17,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 07:48:17,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 07:48:17,915 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 07:48:17,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 07:48:17,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 07:48:17,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 07:48:17,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 07:48:17,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 07:48:17,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 07:48:17,917 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 07:48:17,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 07:48:17,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 07:48:17,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 07:48:17,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 07:48:17,918 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 07:48:17,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:48:17,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 07:48:17,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 07:48:17,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 07:48:17,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 07:48:17,920 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 07:48:17,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 07:48:18,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 07:48:18,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 07:48:18,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 07:48:18,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 07:48:18,132 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 07:48:18,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2023-09-07 07:48:19,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 07:48:19,270 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 07:48:19,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2023-09-07 07:48:19,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a0f5b61/084a022d4a5f4f2e9392466e3d7ab955/FLAGde498deb1 [2023-09-07 07:48:19,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a0f5b61/084a022d4a5f4f2e9392466e3d7ab955 [2023-09-07 07:48:19,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 07:48:19,294 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 07:48:19,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 07:48:19,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 07:48:19,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 07:48:19,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620370ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19, skipping insertion in model container [2023-09-07 07:48:19,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 07:48:19,446 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2023-09-07 07:48:19,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:48:19,457 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 07:48:19,471 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2023-09-07 07:48:19,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 07:48:19,488 INFO L206 MainTranslator]: Completed translation [2023-09-07 07:48:19,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19 WrapperNode [2023-09-07 07:48:19,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 07:48:19,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 07:48:19,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 07:48:19,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 07:48:19,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,523 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 166 [2023-09-07 07:48:19,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 07:48:19,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 07:48:19,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 07:48:19,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 07:48:19,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 07:48:19,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 07:48:19,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 07:48:19,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 07:48:19,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (1/1) ... [2023-09-07 07:48:19,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 07:48:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:19,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 07:48:19,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 07:48:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 07:48:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 07:48:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 07:48:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 07:48:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 07:48:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 07:48:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 07:48:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 07:48:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 07:48:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 07:48:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 07:48:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 07:48:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 07:48:19,626 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 07:48:19,702 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 07:48:19,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 07:48:19,944 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 07:48:19,952 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 07:48:19,952 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-07 07:48:19,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:48:19 BoogieIcfgContainer [2023-09-07 07:48:19,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 07:48:19,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 07:48:19,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 07:48:19,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 07:48:19,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 07:48:19" (1/3) ... [2023-09-07 07:48:19,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5588337f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:48:19, skipping insertion in model container [2023-09-07 07:48:19,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 07:48:19" (2/3) ... [2023-09-07 07:48:19,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5588337f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 07:48:19, skipping insertion in model container [2023-09-07 07:48:19,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 07:48:19" (3/3) ... [2023-09-07 07:48:19,959 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2023-09-07 07:48:19,964 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 07:48:19,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 07:48:19,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 07:48:19,973 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 07:48:20,064 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-07 07:48:20,098 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:48:20,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 07:48:20,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:20,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 07:48:20,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 07:48:20,132 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 07:48:20,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 07:48:20,142 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;@26625b20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 07:48:20,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2023-09-07 07:48:20,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:20,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:20,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1705293171, now seen corresponding path program 1 times [2023-09-07 07:48:20,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:20,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412688170] [2023-09-07 07:48:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:48:20,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:20,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412688170] [2023-09-07 07:48:20,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412688170] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 07:48:20,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 07:48:20,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 07:48:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411106016] [2023-09-07 07:48:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 07:48:20,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 07:48:20,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:20,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 07:48:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 07:48:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:20,910 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:20,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:20,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:21,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 07:48:21,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:21,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1593897303, now seen corresponding path program 1 times [2023-09-07 07:48:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:21,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151086115] [2023-09-07 07:48:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 07:48:21,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:21,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151086115] [2023-09-07 07:48:21,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151086115] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 07:48:21,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 07:48:21,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-07 07:48:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84065254] [2023-09-07 07:48:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 07:48:21,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 07:48:21,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 07:48:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-07 07:48:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:21,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:21,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:21,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:21,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:22,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 07:48:22,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:22,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1455621855, now seen corresponding path program 1 times [2023-09-07 07:48:22,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:22,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657650009] [2023-09-07 07:48:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 07:48:22,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657650009] [2023-09-07 07:48:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657650009] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:48:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665476289] [2023-09-07 07:48:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:22,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:22,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:22,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:48:22,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 07:48:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:22,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-07 07:48:22,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:48:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 07:48:22,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:48:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 07:48:23,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665476289] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:48:23,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:48:23,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2023-09-07 07:48:23,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149239933] [2023-09-07 07:48:23,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:48:23,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-07 07:48:23,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-07 07:48:23,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-09-07 07:48:23,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:23,012 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:23,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.4) internal successors, (156), 15 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:23,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:23,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:23,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:23,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 07:48:23,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-07 07:48:23,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:23,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1107927531, now seen corresponding path program 2 times [2023-09-07 07:48:23,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:23,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689885651] [2023-09-07 07:48:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:48:25,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:25,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689885651] [2023-09-07 07:48:25,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689885651] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:48:25,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815838980] [2023-09-07 07:48:25,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 07:48:25,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:25,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:25,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:48:25,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 07:48:25,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 07:48:25,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:48:25,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 47 conjunts are in the unsatisfiable core [2023-09-07 07:48:25,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:48:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:48:26,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:48:26,914 INFO L322 Elim1Store]: treesize reduction 10, result has 84.6 percent of original size [2023-09-07 07:48:26,915 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 82 [2023-09-07 07:48:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:48:27,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815838980] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:48:27,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:48:27,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 22] total 54 [2023-09-07 07:48:27,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790536921] [2023-09-07 07:48:27,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:48:27,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-09-07 07:48:27,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-09-07 07:48:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2478, Unknown=0, NotChecked=0, Total=2862 [2023-09-07 07:48:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:27,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:27,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.703703703703703) internal successors, (308), 54 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:27,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:27,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:27,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:27,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:48:29,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 07:48:29,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:29,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:29,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash -477443791, now seen corresponding path program 3 times [2023-09-07 07:48:29,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:29,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062056186] [2023-09-07 07:48:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:29,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:29,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062056186] [2023-09-07 07:48:29,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062056186] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:48:29,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658953668] [2023-09-07 07:48:29,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 07:48:29,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:29,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:29,955 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:48:29,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 07:48:30,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-07 07:48:30,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:48:30,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 15 conjunts are in the unsatisfiable core [2023-09-07 07:48:30,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:48:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:30,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:48:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:30,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658953668] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:48:30,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:48:30,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2023-09-07 07:48:30,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16004899] [2023-09-07 07:48:30,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:48:30,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-09-07 07:48:30,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:30,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-09-07 07:48:30,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-09-07 07:48:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:30,391 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:30,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.045454545454545) internal successors, (221), 22 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:30,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:30,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:30,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:30,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:48:30,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:48:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 07:48:31,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 07:48:31,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:31,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:31,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1837188107, now seen corresponding path program 1 times [2023-09-07 07:48:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:31,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718016747] [2023-09-07 07:48:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:32,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:48:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718016747] [2023-09-07 07:48:32,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718016747] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:48:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711074607] [2023-09-07 07:48:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:32,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:48:32,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:48:32,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 07:48:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:48:32,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 38 conjunts are in the unsatisfiable core [2023-09-07 07:48:32,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:48:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:32,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:48:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:48:33,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711074607] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:48:33,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:48:33,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 39 [2023-09-07 07:48:33,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111874841] [2023-09-07 07:48:33,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:48:33,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-09-07 07:48:33,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:48:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-09-07 07:48:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1354, Unknown=0, NotChecked=0, Total=1482 [2023-09-07 07:48:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:33,080 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:48:33,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.589743589743589) internal successors, (296), 39 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 07:48:33,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:48:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:48:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:48:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:48:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:48:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:48:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:48:36,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-09-07 07:48:36,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:48:36,417 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:48:36,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:48:36,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1052116161, now seen corresponding path program 2 times [2023-09-07 07:48:36,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:48:36,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445808384] [2023-09-07 07:48:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:48:36,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:48:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:49:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 07:49:05,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:49:05,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445808384] [2023-09-07 07:49:05,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445808384] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:49:05,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037576209] [2023-09-07 07:49:05,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 07:49:05,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:49:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:49:05,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:49:05,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 07:49:05,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 07:49:05,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:49:05,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 69 conjunts are in the unsatisfiable core [2023-09-07 07:49:05,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:49:08,202 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 07:49:08,203 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 107 [2023-09-07 07:49:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 07:49:08,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:49:10,836 INFO L322 Elim1Store]: treesize reduction 25, result has 94.1 percent of original size [2023-09-07 07:49:10,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 83 treesize of output 467 [2023-09-07 07:49:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 07:49:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037576209] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:49:12,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:49:12,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 35, 25] total 113 [2023-09-07 07:49:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459928475] [2023-09-07 07:49:12,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:49:12,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-09-07 07:49:12,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:49:12,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-09-07 07:49:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=12212, Unknown=0, NotChecked=0, Total=12656 [2023-09-07 07:49:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:12,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:49:12,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 5.327433628318584) internal successors, (602), 113 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-09-07 07:49:23,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-09-07 07:49:23,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:49:23,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:49:23,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:49:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash 772576261, now seen corresponding path program 3 times [2023-09-07 07:49:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:49:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078076391] [2023-09-07 07:49:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:49:23,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:49:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:49:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 2 proven. 185 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:23,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:49:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078076391] [2023-09-07 07:49:23,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078076391] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:49:23,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750302899] [2023-09-07 07:49:23,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 07:49:23,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:49:23,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:49:23,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:49:23,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-07 07:49:24,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-09-07 07:49:24,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:49:24,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 49 conjunts are in the unsatisfiable core [2023-09-07 07:49:24,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:49:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:25,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:49:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:27,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750302899] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:49:27,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:49:27,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 28] total 65 [2023-09-07 07:49:27,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681467432] [2023-09-07 07:49:27,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:49:27,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-09-07 07:49:27,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:49:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-09-07 07:49:27,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=3653, Unknown=0, NotChecked=0, Total=4160 [2023-09-07 07:49:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:27,026 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:49:27,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 6.553846153846154) internal successors, (426), 65 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-09-07 07:49:27,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-09-07 07:49:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-09-07 07:49:41,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-09-07 07:49:41,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:49:41,404 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:49:41,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:49:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1576650825, now seen corresponding path program 4 times [2023-09-07 07:49:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:49:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261758760] [2023-09-07 07:49:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:49:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:49:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 07:49:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:42,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 07:49:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261758760] [2023-09-07 07:49:42,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261758760] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 07:49:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191520189] [2023-09-07 07:49:42,296 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-07 07:49:42,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 07:49:42,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 07:49:42,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 07:49:42,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-07 07:49:42,545 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-07 07:49:42,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 07:49:42,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 62 conjunts are in the unsatisfiable core [2023-09-07 07:49:42,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 07:49:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:43,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 07:49:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-09-07 07:49:44,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191520189] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 07:49:44,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 07:49:44,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2023-09-07 07:49:44,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343027552] [2023-09-07 07:49:44,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 07:49:44,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-09-07 07:49:44,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 07:49:44,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-09-07 07:49:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3658, Unknown=0, NotChecked=0, Total=3906 [2023-09-07 07:49:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:44,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 07:49:44,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 6.920634920634921) internal successors, (436), 63 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2023-09-07 07:49:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-09-07 07:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-09-07 07:49:54,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-07 07:49:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-09-07 07:49:54,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 07:49:54,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 07:49:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1561051629, now seen corresponding path program 5 times [2023-09-07 07:49:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 07:49:54,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235043481] [2023-09-07 07:49:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 07:49:54,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 07:49:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat