/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/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 11:06:31,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 11:06:31,760 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 11:06:31,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 11:06:31,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 11:06:31,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 11:06:31,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 11:06:31,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 11:06:31,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 11:06:31,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 11:06:31,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 11:06:31,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 11:06:31,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 11:06:31,790 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 11:06:31,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 11:06:31,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 11:06:31,791 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 11:06:31,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 11:06:31,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 11:06:31,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 11:06:31,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 11:06:31,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 11:06:31,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 11:06:31,796 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 11:06:31,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 11:06:31,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 11:06:31,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 11:06:31,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 11:06:31,801 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 11:06:31,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 11:06:31,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 11:06:31,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 11:06:31,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 11:06:31,803 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 11:06:31,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 11:06:31,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 11:06:31,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 11:06:32,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 11:06:32,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 11:06:32,001 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 11:06:32,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2023-09-07 11:06:33,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 11:06:33,252 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 11:06:33,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2023-09-07 11:06:33,258 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b15f6b6ab/7a8f5dc9bea8441b95d7e0f6ae7851bb/FLAG01af97ef9 [2023-09-07 11:06:33,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b15f6b6ab/7a8f5dc9bea8441b95d7e0f6ae7851bb [2023-09-07 11:06:33,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 11:06:33,270 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 11:06:33,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 11:06:33,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 11:06:33,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 11:06:33,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db2e103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33, skipping insertion in model container [2023-09-07 11:06:33,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,296 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 11:06:33,393 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-4.wvr.c[2808,2821] [2023-09-07 11:06:33,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 11:06:33,407 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 11:06:33,421 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-4.wvr.c[2808,2821] [2023-09-07 11:06:33,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 11:06:33,457 INFO L206 MainTranslator]: Completed translation [2023-09-07 11:06:33,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33 WrapperNode [2023-09-07 11:06:33,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 11:06:33,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 11:06:33,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 11:06:33,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 11:06:33,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,492 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 187 [2023-09-07 11:06:33,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 11:06:33,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 11:06:33,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 11:06:33,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 11:06:33,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 11:06:33,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 11:06:33,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 11:06:33,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 11:06:33,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (1/1) ... [2023-09-07 11:06:33,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 11:06:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:33,545 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 11:06:33,549 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 11:06:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 11:06:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 11:06:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 11:06:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 11:06:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 11:06:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 11:06:33,571 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 11:06:33,634 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 11:06:33,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 11:06:33,850 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 11:06:33,858 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 11:06:33,859 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-07 11:06:33,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:06:33 BoogieIcfgContainer [2023-09-07 11:06:33,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 11:06:33,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 11:06:33,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 11:06:33,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 11:06:33,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:06:33" (1/3) ... [2023-09-07 11:06:33,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed12b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:06:33, skipping insertion in model container [2023-09-07 11:06:33,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:06:33" (2/3) ... [2023-09-07 11:06:33,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed12b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:06:33, skipping insertion in model container [2023-09-07 11:06:33,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:06:33" (3/3) ... [2023-09-07 11:06:33,867 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2023-09-07 11:06:33,873 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 11:06:33,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 11:06:33,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 11:06:33,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 11:06:34,007 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-07 11:06:34,043 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 11:06:34,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 11:06:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:34,055 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 11:06:34,057 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 11:06:34,079 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 11:06:34,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 11:06:34,087 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;@1742e4d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 11:06:34,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 11:06:34,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:34,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1109422877, now seen corresponding path program 1 times [2023-09-07 11:06:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:34,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894839688] [2023-09-07 11:06:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:34,513 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 11:06:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894839688] [2023-09-07 11:06:34,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894839688] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 11:06:34,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 11:06:34,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 11:06:34,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961084452] [2023-09-07 11:06:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 11:06:34,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 11:06:34,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 11:06:34,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 11:06:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:34,538 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:34,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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 11:06:34,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:34,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 11:06:34,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:34,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:34,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1252701437, now seen corresponding path program 1 times [2023-09-07 11:06:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:34,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087448681] [2023-09-07 11:06:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:34,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:35,205 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 11:06:35,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:35,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087448681] [2023-09-07 11:06:35,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087448681] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 11:06:35,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 11:06:35,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-07 11:06:35,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986350192] [2023-09-07 11:06:35,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 11:06:35,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 11:06:35,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 11:06:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-09-07 11:06:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:35,210 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:35,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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 11:06:35,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:35,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:35,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 11:06:35,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:35,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:35,406 INFO L85 PathProgramCache]: Analyzing trace with hash 556230855, now seen corresponding path program 1 times [2023-09-07 11:06:35,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:35,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963632033] [2023-09-07 11:06:35,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:35,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:35,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963632033] [2023-09-07 11:06:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963632033] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:06:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501802880] [2023-09-07 11:06:35,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:35,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:06:35,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:35,753 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 11:06:35,766 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 11:06:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:35,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 11:06:35,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:06:36,087 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 11:06:36,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 11:06:36,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501802880] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 11:06:36,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 11:06:36,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-09-07 11:06:36,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525719669] [2023-09-07 11:06:36,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 11:06:36,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 11:06:36,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 11:06:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-09-07 11:06:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:36,092 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:36,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 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 11:06:36,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:36,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:36,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:36,255 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 11:06:36,437 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 11:06:36,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:36,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash -394116039, now seen corresponding path program 1 times [2023-09-07 11:06:36,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:36,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597524041] [2023-09-07 11:06:36,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:36,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:36,763 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 11:06:36,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597524041] [2023-09-07 11:06:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597524041] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:06:36,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994107787] [2023-09-07 11:06:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:36,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:06:36,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:36,766 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 11:06:36,798 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 11:06:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:36,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 33 conjunts are in the unsatisfiable core [2023-09-07 11:06:36,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:06:37,368 INFO L351 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 [2023-09-07 11:06:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:37,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:06:37,864 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-09-07 11:06:37,865 INFO L351 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 [2023-09-07 11:06:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:38,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994107787] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:06:38,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:06:38,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 18] total 38 [2023-09-07 11:06:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935986227] [2023-09-07 11:06:38,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:06:38,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-09-07 11:06:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-09-07 11:06:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1288, Unknown=0, NotChecked=0, Total=1406 [2023-09-07 11:06:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:38,449 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:38,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 9.526315789473685) internal successors, (362), 38 states have internal predecessors, (362), 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 11:06:38,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:38,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:38,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:38,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:39,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:39,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:39,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:06:39,502 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 11:06:39,699 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 11:06:39,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:39,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash -665670539, now seen corresponding path program 2 times [2023-09-07 11:06:39,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:39,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090582718] [2023-09-07 11:06:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:39,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 11:06:40,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:40,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090582718] [2023-09-07 11:06:40,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090582718] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:06:40,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52889907] [2023-09-07 11:06:40,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 11:06:40,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:06:40,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:40,017 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 11:06:40,062 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 11:06:40,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 11:06:40,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 11:06:40,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 22 conjunts are in the unsatisfiable core [2023-09-07 11:06:40,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:06:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 11:06:40,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:06:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 11:06:40,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52889907] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:06:40,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:06:40,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2023-09-07 11:06:40,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616868173] [2023-09-07 11:06:40,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:06:40,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-09-07 11:06:40,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:40,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-09-07 11:06:40,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2023-09-07 11:06:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:40,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:40,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.869565217391305) internal successors, (204), 23 states have internal predecessors, (204), 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 11:06:40,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:40,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:40,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:40,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:06:40,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:06:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:06:41,203 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 11:06:41,386 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 11:06:41,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:06:41,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:06:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1526731713, now seen corresponding path program 3 times [2023-09-07 11:06:41,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:06:41,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803688037] [2023-09-07 11:06:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:06:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:06:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:06:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:46,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:06:46,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803688037] [2023-09-07 11:06:46,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803688037] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:06:46,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090339738] [2023-09-07 11:06:46,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 11:06:46,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:06:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:06:46,872 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 11:06:46,901 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 11:06:47,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-07 11:06:47,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 11:06:47,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 73 conjunts are in the unsatisfiable core [2023-09-07 11:06:47,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:06:47,840 INFO L351 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 11 treesize of output 7 [2023-09-07 11:06:48,333 INFO L351 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 6 treesize of output 5 [2023-09-07 11:06:48,437 INFO L351 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 6 treesize of output 5 [2023-09-07 11:06:49,611 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 11:06:49,611 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 47 [2023-09-07 11:06:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:49,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:06:52,061 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-07 11:06:52,061 INFO L351 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 272 treesize of output 164 [2023-09-07 11:06:52,194 INFO L322 Elim1Store]: treesize reduction 5, result has 96.7 percent of original size [2023-09-07 11:06:52,194 INFO L351 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 816 treesize of output 835 [2023-09-07 11:06:52,394 INFO L322 Elim1Store]: treesize reduction 8, result has 94.8 percent of original size [2023-09-07 11:06:52,394 INFO L351 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 185 treesize of output 241 [2023-09-07 11:06:52,940 INFO L322 Elim1Store]: treesize reduction 8, result has 94.8 percent of original size [2023-09-07 11:06:52,941 INFO L351 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 128 treesize of output 244 [2023-09-07 11:06:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 11:06:56,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090339738] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:06:56,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:06:56,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 38, 34] total 105 [2023-09-07 11:06:56,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587987402] [2023-09-07 11:06:56,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:06:56,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-09-07 11:06:56,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:06:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-09-07 11:06:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=997, Invalid=9878, Unknown=45, NotChecked=0, Total=10920 [2023-09-07 11:06:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:56,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:06:56,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 4.228571428571429) internal successors, (444), 105 states have internal predecessors, (444), 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 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:06:56,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:07:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:07:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:07:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:07:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:07:03,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 11:07:03,628 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 11:07:03,629 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:07:03,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:07:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash 276837243, now seen corresponding path program 4 times [2023-09-07 11:07:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:07:03,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899210775] [2023-09-07 11:07:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:07:03,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:07:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:07:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:07:04,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:07:04,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899210775] [2023-09-07 11:07:04,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899210775] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:07:04,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960686857] [2023-09-07 11:07:04,112 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-07 11:07:04,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:07:04,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:07:04,113 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 11:07:04,133 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 11:07:04,280 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-07 11:07:04,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 11:07:04,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 24 conjunts are in the unsatisfiable core [2023-09-07 11:07:04,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:07:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:07:04,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:07:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:07:05,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960686857] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:07:05,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:07:05,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 14] total 37 [2023-09-07 11:07:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085113355] [2023-09-07 11:07:05,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:07:05,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-09-07 11:07:05,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:07:05,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-09-07 11:07:05,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1064, Unknown=0, NotChecked=0, Total=1332 [2023-09-07 11:07:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:05,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:07:05,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.756756756756757) internal successors, (287), 37 states have internal predecessors, (287), 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 11:07:05,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:05,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:07:05,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:07:05,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:07:05,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:07:05,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:07:05,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:07:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:07:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:07:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:07:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:07:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:07:06,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 11:07:06,823 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 11:07:06,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:07:06,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:07:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1316486101, now seen corresponding path program 1 times [2023-09-07 11:07:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:07:06,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186951604] [2023-09-07 11:07:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:07:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:07:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:07:07,752 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 11:07:07,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:07:07,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186951604] [2023-09-07 11:07:07,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186951604] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:07:07,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509817754] [2023-09-07 11:07:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:07:07,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:07:07,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:07:07,765 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 11:07:07,767 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 11:07:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:07:07,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 53 conjunts are in the unsatisfiable core [2023-09-07 11:07:07,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:07:08,739 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 11:07:08,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:07:10,683 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 11:07:10,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509817754] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:07:10,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:07:10,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 30] total 72 [2023-09-07 11:07:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695695760] [2023-09-07 11:07:10,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:07:10,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-09-07 11:07:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:07:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-09-07 11:07:10,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=4623, Unknown=0, NotChecked=0, Total=5112 [2023-09-07 11:07:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:10,690 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:07:10,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 6.388888888888889) internal successors, (460), 72 states have internal predecessors, (460), 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 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:07:10,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:07:17,733 WARN L234 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 102 DAG size of output: 96 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 11:07:30,523 WARN L234 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 104 DAG size of output: 98 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 11:08:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:08:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:08:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:08:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:08:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:08:03,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:08:03,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:08:03,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-09-07 11:08:03,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-07 11:08:03,309 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 11:08:03,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:08:03,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:08:03,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1851359129, now seen corresponding path program 2 times [2023-09-07 11:08:03,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:08:03,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362499539] [2023-09-07 11:08:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:08:03,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:08:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:08:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:08:04,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:08:04,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362499539] [2023-09-07 11:08:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362499539] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:08:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907811415] [2023-09-07 11:08:04,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 11:08:04,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:08:04,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:08:04,785 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 11:08:04,831 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 11:08:05,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 11:08:05,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 11:08:05,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 63 conjunts are in the unsatisfiable core [2023-09-07 11:08:05,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:08:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:08:05,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:08:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:08:07,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907811415] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:08:07,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:08:07,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 34] total 75 [2023-09-07 11:08:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561035928] [2023-09-07 11:08:07,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:08:07,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-09-07 11:08:07,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:08:07,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-09-07 11:08:07,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=5127, Unknown=0, NotChecked=0, Total=5550 [2023-09-07 11:08:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:08:07,719 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:08:07,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 7.173333333333333) internal successors, (538), 75 states have internal predecessors, (538), 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 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:08:07,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:08:07,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:08:07,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2023-09-07 11:08:07,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:14:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-09-07 11:14:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2023-09-07 11:14:46,019 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 11:14:46,213 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 11:14:46,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 11:14:46,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 11:14:46,213 INFO L85 PathProgramCache]: Analyzing trace with hash -596413797, now seen corresponding path program 3 times [2023-09-07 11:14:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 11:14:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193629559] [2023-09-07 11:14:46,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 11:14:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 11:14:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 11:14:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 2347 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-07 11:14:49,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 11:14:49,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193629559] [2023-09-07 11:14:49,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193629559] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 11:14:49,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859404153] [2023-09-07 11:14:49,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 11:14:49,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 11:14:49,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 11:14:49,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 11:14:49,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-09-07 11:14:56,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-09-07 11:14:56,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 11:14:56,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 100 conjunts are in the unsatisfiable core [2023-09-07 11:14:56,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 11:15:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1476 proven. 527 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-09-07 11:15:31,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 11:16:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 1728 proven. 275 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-09-07 11:16:23,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859404153] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 11:16:23,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 11:16:23,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 49, 57] total 162 [2023-09-07 11:16:23,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661688434] [2023-09-07 11:16:23,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 11:16:23,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2023-09-07 11:16:23,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 11:16:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2023-09-07 11:16:23,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2530, Invalid=23552, Unknown=0, NotChecked=0, Total=26082 [2023-09-07 11:16:23,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:16:23,494 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 11:16:23,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 6.037037037037037) internal successors, (978), 162 states have internal predecessors, (978), 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 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2023-09-07 11:16:23,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2023-09-07 11:20:58,122 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 11:20:58,122 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 11:20:58,122 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 11:20:58,397 WARN L266 SmtUtils]: Removed 4 from assertion stack [2023-09-07 11:20:58,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-09-07 11:20:58,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-09-07 11:20:58,598 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 227 for 204099ms.. [2023-09-07 11:20:58,600 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 11:20:58,602 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1] [2023-09-07 11:20:58,603 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2023-09-07 11:20:58,604 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 11:20:58,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 11:20:58,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 11:20:58 BasicIcfg [2023-09-07 11:20:58,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 11:20:58,605 INFO L158 Benchmark]: Toolchain (without parser) took 865335.15ms. Allocated memory was 176.2MB in the beginning and 709.9MB in the end (delta: 533.7MB). Free memory was 139.8MB in the beginning and 299.5MB in the end (delta: -159.7MB). Peak memory consumption was 375.3MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.47ms. Allocated memory is still 176.2MB. Free memory was 139.5MB in the beginning and 127.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.35ms. Allocated memory is still 176.2MB. Free memory was 127.5MB in the beginning and 125.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 123.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: RCFGBuilder took 337.65ms. Allocated memory is still 176.2MB. Free memory was 123.7MB in the beginning and 104.1MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,606 INFO L158 Benchmark]: TraceAbstraction took 864742.44ms. Allocated memory was 176.2MB in the beginning and 709.9MB in the end (delta: 533.7MB). Free memory was 103.5MB in the beginning and 299.5MB in the end (delta: -196.0MB). Peak memory consumption was 338.6MB. Max. memory is 7.0GB. [2023-09-07 11:20:58,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 186.47ms. Allocated memory is still 176.2MB. Free memory was 139.5MB in the beginning and 127.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 34.35ms. Allocated memory is still 176.2MB. Free memory was 127.5MB in the beginning and 125.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 123.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 337.65ms. Allocated memory is still 176.2MB. Free memory was 123.7MB in the beginning and 104.1MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. * TraceAbstraction took 864742.44ms. Allocated memory was 176.2MB in the beginning and 709.9MB in the end (delta: 533.7MB). Free memory was 103.5MB in the beginning and 299.5MB in the end (delta: -196.0MB). Peak memory consumption was 338.6MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 21916, independent: 19111, independent conditional: 19111, independent unconditional: 0, dependent: 2805, dependent conditional: 2805, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19111, independent: 19111, independent conditional: 19111, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 19111, independent: 19111, independent conditional: 19111, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19111, independent: 19111, independent conditional: 0, independent unconditional: 19111, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19111, independent: 19111, independent conditional: 0, independent unconditional: 19111, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19111, independent: 19111, independent conditional: 0, independent unconditional: 19111, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1360, independent: 1360, independent conditional: 0, independent unconditional: 1360, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1360, independent: 1360, independent conditional: 0, independent unconditional: 1360, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 19111, independent: 17751, independent conditional: 0, independent unconditional: 17751, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1360, unknown conditional: 0, unknown unconditional: 1360] , Statistics on independence cache: Total cache size (in pairs): 1360, Positive cache size: 1360, Positive conditional cache size: 0, Positive unconditional cache size: 1360, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 2805 - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 227 for 204099ms.. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 314 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 864.5s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 735.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 581, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 7.9s SatisfiabilityAnalysisTime, 118.3s InterpolantComputationTime, 3891 NumberOfCodeBlocks, 3819 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 5560 ConstructedInterpolants, 58 QuantifiedInterpolants, 59444 SizeOfPredicates, 195 NumberOfNonLiveVariables, 3268 ConjunctsInSsa, 377 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 4254/10214 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-09-07 11:20:58,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0