/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:06:34,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:06:34,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:06:34,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:06:34,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:06:34,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:06:34,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:06:34,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:06:34,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:06:34,733 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:06:34,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:06:34,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:06:34,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:06:34,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:06:34,734 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:06:34,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:06:34,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:06:34,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:06:34,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:06:34,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:06:34,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:06:34,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:06:34,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:06:34,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:06:34,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:06:34,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:06:34,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:06:34,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:06:34,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:06:34,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:06:34,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:06:34,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:06:34,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:06:34,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:06:34,739 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:06:34,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:06:34,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:06:34,752 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:06:34,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:06:34,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:06:34,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:06:34,921 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:06:34,922 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:06:34,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2023-12-16 01:06:36,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:06:36,319 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:06:36,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2023-12-16 01:06:36,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155b19723/479ab7ca442d4c72b41f4f2f29b53968/FLAGe272f0d32 [2023-12-16 01:06:36,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155b19723/479ab7ca442d4c72b41f4f2f29b53968 [2023-12-16 01:06:36,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:06:36,351 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:06:36,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:06:36,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:06:36,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:06:36,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a31d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36, skipping insertion in model container [2023-12-16 01:06:36,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:06:36,514 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[913,926] [2023-12-16 01:06:36,542 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[5977,5990] [2023-12-16 01:06:36,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:06:36,645 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:06:36,654 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[913,926] [2023-12-16 01:06:36,671 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.07.cil-1.c[5977,5990] [2023-12-16 01:06:36,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:06:36,712 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:06:36,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36 WrapperNode [2023-12-16 01:06:36,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:06:36,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:06:36,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:06:36,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:06:36,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,777 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 783 [2023-12-16 01:06:36,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:06:36,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:06:36,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:06:36,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:06:36,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,812 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:06:36,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:06:36,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:06:36,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:06:36,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:06:36,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (1/1) ... [2023-12-16 01:06:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:06:36,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:36,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:06:36,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:06:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:06:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:06:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:06:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-16 01:06:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-16 01:06:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:06:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:06:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:06:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:06:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:06:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:06:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:06:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:06:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:06:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:06:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:06:37,052 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:06:37,054 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:06:37,623 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:06:37,662 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:06:37,663 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-16 01:06:37,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:06:37 BoogieIcfgContainer [2023-12-16 01:06:37,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:06:37,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:06:37,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:06:37,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:06:37,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:06:36" (1/3) ... [2023-12-16 01:06:37,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2ec8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:06:37, skipping insertion in model container [2023-12-16 01:06:37,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:36" (2/3) ... [2023-12-16 01:06:37,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2ec8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:06:37, skipping insertion in model container [2023-12-16 01:06:37,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:06:37" (3/3) ... [2023-12-16 01:06:37,671 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.07.cil-1.c [2023-12-16 01:06:37,683 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:06:37,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:06:37,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:06:37,740 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6d514ef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:06:37,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:06:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 296 states, 257 states have (on average 1.7042801556420233) internal successors, (438), 262 states have internal predecessors, (438), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 01:06:37,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 01:06:37,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:37,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:37,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:37,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash 357628014, now seen corresponding path program 1 times [2023-12-16 01:06:37,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:37,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409590656] [2023-12-16 01:06:37,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:37,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:38,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:38,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409590656] [2023-12-16 01:06:38,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409590656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:38,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:38,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157013178] [2023-12-16 01:06:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:38,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:38,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:38,105 INFO L87 Difference]: Start difference. First operand has 296 states, 257 states have (on average 1.7042801556420233) internal successors, (438), 262 states have internal predecessors, (438), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:38,557 INFO L93 Difference]: Finished difference Result 638 states and 1058 transitions. [2023-12-16 01:06:38,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:38,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-16 01:06:38,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:38,573 INFO L225 Difference]: With dead ends: 638 [2023-12-16 01:06:38,573 INFO L226 Difference]: Without dead ends: 354 [2023-12-16 01:06:38,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:38,583 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 601 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:38,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 531 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-16 01:06:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2023-12-16 01:06:38,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 304 states have (on average 1.555921052631579) internal successors, (473), 308 states have internal predecessors, (473), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2023-12-16 01:06:38,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 539 transitions. [2023-12-16 01:06:38,641 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 539 transitions. Word has length 37 [2023-12-16 01:06:38,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:38,641 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 539 transitions. [2023-12-16 01:06:38,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:38,641 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 539 transitions. [2023-12-16 01:06:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 01:06:38,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:38,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:38,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:06:38,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:38,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1987468010, now seen corresponding path program 1 times [2023-12-16 01:06:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:38,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273475757] [2023-12-16 01:06:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:38,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:06:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:38,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:38,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273475757] [2023-12-16 01:06:38,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273475757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:38,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:38,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419276378] [2023-12-16 01:06:38,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:38,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:38,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:38,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:38,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:38,722 INFO L87 Difference]: Start difference. First operand 348 states and 539 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:38,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:38,991 INFO L93 Difference]: Finished difference Result 582 states and 883 transitions. [2023-12-16 01:06:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:38,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-16 01:06:38,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:38,994 INFO L225 Difference]: With dead ends: 582 [2023-12-16 01:06:38,994 INFO L226 Difference]: Without dead ends: 471 [2023-12-16 01:06:38,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:38,995 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 614 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:38,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 527 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-16 01:06:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 448. [2023-12-16 01:06:39,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 391 states have (on average 1.5115089514066495) internal successors, (591), 396 states have internal predecessors, (591), 39 states have call successors, (39), 15 states have call predecessors, (39), 16 states have return successors, (49), 37 states have call predecessors, (49), 37 states have call successors, (49) [2023-12-16 01:06:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 679 transitions. [2023-12-16 01:06:39,019 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 679 transitions. Word has length 38 [2023-12-16 01:06:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:39,019 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 679 transitions. [2023-12-16 01:06:39,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 679 transitions. [2023-12-16 01:06:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 01:06:39,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:39,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:39,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:06:39,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1836337236, now seen corresponding path program 1 times [2023-12-16 01:06:39,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860344007] [2023-12-16 01:06:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 01:06:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:39,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860344007] [2023-12-16 01:06:39,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860344007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:39,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:39,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524585850] [2023-12-16 01:06:39,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:39,079 INFO L87 Difference]: Start difference. First operand 448 states and 679 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:39,399 INFO L93 Difference]: Finished difference Result 868 states and 1260 transitions. [2023-12-16 01:06:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-16 01:06:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:39,402 INFO L225 Difference]: With dead ends: 868 [2023-12-16 01:06:39,402 INFO L226 Difference]: Without dead ends: 657 [2023-12-16 01:06:39,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:39,403 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 251 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:39,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 732 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:39,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-12-16 01:06:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 553. [2023-12-16 01:06:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 484 states have (on average 1.487603305785124) internal successors, (720), 491 states have internal predecessors, (720), 45 states have call successors, (45), 21 states have call predecessors, (45), 22 states have return successors, (55), 41 states have call predecessors, (55), 43 states have call successors, (55) [2023-12-16 01:06:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 820 transitions. [2023-12-16 01:06:39,425 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 820 transitions. Word has length 39 [2023-12-16 01:06:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:39,425 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 820 transitions. [2023-12-16 01:06:39,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 820 transitions. [2023-12-16 01:06:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 01:06:39,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:39,427 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:39,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:06:39,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1734053101, now seen corresponding path program 1 times [2023-12-16 01:06:39,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766145120] [2023-12-16 01:06:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-16 01:06:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 01:06:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:06:39,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766145120] [2023-12-16 01:06:39,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766145120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:39,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:39,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306952698] [2023-12-16 01:06:39,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:39,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:39,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:39,485 INFO L87 Difference]: Start difference. First operand 553 states and 820 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:39,756 INFO L93 Difference]: Finished difference Result 1069 states and 1537 transitions. [2023-12-16 01:06:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:39,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-16 01:06:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:39,759 INFO L225 Difference]: With dead ends: 1069 [2023-12-16 01:06:39,759 INFO L226 Difference]: Without dead ends: 753 [2023-12-16 01:06:39,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:39,760 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 236 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:39,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 779 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-16 01:06:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 719. [2023-12-16 01:06:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 626 states have (on average 1.4313099041533546) internal successors, (896), 635 states have internal predecessors, (896), 59 states have call successors, (59), 29 states have call predecessors, (59), 32 states have return successors, (79), 55 states have call predecessors, (79), 57 states have call successors, (79) [2023-12-16 01:06:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1034 transitions. [2023-12-16 01:06:39,785 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1034 transitions. Word has length 54 [2023-12-16 01:06:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:39,785 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1034 transitions. [2023-12-16 01:06:39,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1034 transitions. [2023-12-16 01:06:39,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:06:39,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:39,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:39,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:06:39,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1757423978, now seen corresponding path program 1 times [2023-12-16 01:06:39,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274279627] [2023-12-16 01:06:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 01:06:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:06:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 01:06:39,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274279627] [2023-12-16 01:06:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274279627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:39,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:39,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892019969] [2023-12-16 01:06:39,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:39,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:39,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:39,828 INFO L87 Difference]: Start difference. First operand 719 states and 1034 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:40,360 INFO L93 Difference]: Finished difference Result 1298 states and 1813 transitions. [2023-12-16 01:06:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:40,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-16 01:06:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:40,364 INFO L225 Difference]: With dead ends: 1298 [2023-12-16 01:06:40,364 INFO L226 Difference]: Without dead ends: 896 [2023-12-16 01:06:40,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:40,366 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 600 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:40,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 539 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-16 01:06:40,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 847. [2023-12-16 01:06:40,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 738 states have (on average 1.397018970189702) internal successors, (1031), 749 states have internal predecessors, (1031), 67 states have call successors, (67), 35 states have call predecessors, (67), 40 states have return successors, (93), 63 states have call predecessors, (93), 65 states have call successors, (93) [2023-12-16 01:06:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1191 transitions. [2023-12-16 01:06:40,401 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1191 transitions. Word has length 59 [2023-12-16 01:06:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:40,401 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1191 transitions. [2023-12-16 01:06:40,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1191 transitions. [2023-12-16 01:06:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:06:40,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:40,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:40,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:06:40,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:40,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash 860035620, now seen corresponding path program 1 times [2023-12-16 01:06:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:40,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688603723] [2023-12-16 01:06:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:40,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:40,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688603723] [2023-12-16 01:06:40,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688603723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:40,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:40,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:06:40,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331699479] [2023-12-16 01:06:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:40,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:06:40,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:40,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:06:40,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:40,499 INFO L87 Difference]: Start difference. First operand 847 states and 1191 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:40,889 INFO L93 Difference]: Finished difference Result 1333 states and 1853 transitions. [2023-12-16 01:06:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:40,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-16 01:06:40,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:40,893 INFO L225 Difference]: With dead ends: 1333 [2023-12-16 01:06:40,893 INFO L226 Difference]: Without dead ends: 795 [2023-12-16 01:06:40,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:40,895 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 188 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:40,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 947 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-16 01:06:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 722. [2023-12-16 01:06:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 630 states have (on average 1.403174603174603) internal successors, (884), 640 states have internal predecessors, (884), 57 states have call successors, (57), 29 states have call predecessors, (57), 33 states have return successors, (75), 53 states have call predecessors, (75), 55 states have call successors, (75) [2023-12-16 01:06:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1016 transitions. [2023-12-16 01:06:40,930 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1016 transitions. Word has length 60 [2023-12-16 01:06:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:40,931 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 1016 transitions. [2023-12-16 01:06:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1016 transitions. [2023-12-16 01:06:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:06:40,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:40,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:40,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:06:40,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:40,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1637292060, now seen corresponding path program 1 times [2023-12-16 01:06:40,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:40,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411640006] [2023-12-16 01:06:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:40,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 01:06:41,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411640006] [2023-12-16 01:06:41,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411640006] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275508164] [2023-12-16 01:06:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:41,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:41,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:41,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:06:41,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:06:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 01:06:41,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:41,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:06:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:41,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275508164] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:41,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 01:06:41,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2023-12-16 01:06:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203275591] [2023-12-16 01:06:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:41,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:41,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:41,228 INFO L87 Difference]: Start difference. First operand 722 states and 1016 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:41,356 INFO L93 Difference]: Finished difference Result 771 states and 1077 transitions. [2023-12-16 01:06:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:06:41,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-16 01:06:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:41,359 INFO L225 Difference]: With dead ends: 771 [2023-12-16 01:06:41,359 INFO L226 Difference]: Without dead ends: 768 [2023-12-16 01:06:41,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:06:41,360 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 810 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:41,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 491 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:06:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-16 01:06:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 721. [2023-12-16 01:06:41,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 630 states have (on average 1.4) internal successors, (882), 639 states have internal predecessors, (882), 56 states have call successors, (56), 29 states have call predecessors, (56), 33 states have return successors, (75), 53 states have call predecessors, (75), 55 states have call successors, (75) [2023-12-16 01:06:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1013 transitions. [2023-12-16 01:06:41,384 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1013 transitions. Word has length 60 [2023-12-16 01:06:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:41,384 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 1013 transitions. [2023-12-16 01:06:41,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1013 transitions. [2023-12-16 01:06:41,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 01:06:41,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:41,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:41,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 01:06:41,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:41,592 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:41,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:41,592 INFO L85 PathProgramCache]: Analyzing trace with hash 782519725, now seen corresponding path program 1 times [2023-12-16 01:06:41,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:41,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672218774] [2023-12-16 01:06:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:41,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 01:06:41,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:41,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672218774] [2023-12-16 01:06:41,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672218774] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:41,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258318090] [2023-12-16 01:06:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:41,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:41,688 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) [2023-12-16 01:06:41,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:06:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:06:41,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:42,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:06:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:42,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258318090] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:06:42,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:06:42,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2023-12-16 01:06:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821127545] [2023-12-16 01:06:42,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:06:42,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:06:42,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:42,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:06:42,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:06:42,082 INFO L87 Difference]: Start difference. First operand 721 states and 1013 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-16 01:06:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:43,035 INFO L93 Difference]: Finished difference Result 1957 states and 2665 transitions. [2023-12-16 01:06:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 01:06:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 61 [2023-12-16 01:06:43,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:43,041 INFO L225 Difference]: With dead ends: 1957 [2023-12-16 01:06:43,041 INFO L226 Difference]: Without dead ends: 1559 [2023-12-16 01:06:43,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2023-12-16 01:06:43,046 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1166 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:43,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 2063 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:06:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2023-12-16 01:06:43,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1050. [2023-12-16 01:06:43,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 922 states have (on average 1.3622559652928417) internal successors, (1256), 938 states have internal predecessors, (1256), 75 states have call successors, (75), 42 states have call predecessors, (75), 51 states have return successors, (106), 70 states have call predecessors, (106), 74 states have call successors, (106) [2023-12-16 01:06:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1437 transitions. [2023-12-16 01:06:43,088 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1437 transitions. Word has length 61 [2023-12-16 01:06:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:43,088 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1437 transitions. [2023-12-16 01:06:43,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-16 01:06:43,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1437 transitions. [2023-12-16 01:06:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 01:06:43,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:43,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:43,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 01:06:43,295 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,SelfDestructingSolverStorable7 [2023-12-16 01:06:43,296 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:43,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 853708754, now seen corresponding path program 1 times [2023-12-16 01:06:43,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:43,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620785690] [2023-12-16 01:06:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:43,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 01:06:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 01:06:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 01:06:43,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620785690] [2023-12-16 01:06:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620785690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:43,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:43,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:43,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041839195] [2023-12-16 01:06:43,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:43,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:43,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:43,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:43,376 INFO L87 Difference]: Start difference. First operand 1050 states and 1437 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 01:06:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:43,688 INFO L93 Difference]: Finished difference Result 1684 states and 2260 transitions. [2023-12-16 01:06:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:43,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-16 01:06:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:43,691 INFO L225 Difference]: With dead ends: 1684 [2023-12-16 01:06:43,691 INFO L226 Difference]: Without dead ends: 1019 [2023-12-16 01:06:43,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:43,693 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 613 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:43,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2023-12-16 01:06:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 942. [2023-12-16 01:06:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 827 states have (on average 1.3639661426844014) internal successors, (1128), 843 states have internal predecessors, (1128), 68 states have call successors, (68), 37 states have call predecessors, (68), 45 states have return successors, (95), 62 states have call predecessors, (95), 67 states have call successors, (95) [2023-12-16 01:06:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1291 transitions. [2023-12-16 01:06:43,721 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1291 transitions. Word has length 78 [2023-12-16 01:06:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:43,722 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1291 transitions. [2023-12-16 01:06:43,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 01:06:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1291 transitions. [2023-12-16 01:06:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 01:06:43,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:43,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:43,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:06:43,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:43,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1703888058, now seen corresponding path program 1 times [2023-12-16 01:06:43,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:43,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585156884] [2023-12-16 01:06:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 01:06:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 01:06:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 01:06:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 01:06:43,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585156884] [2023-12-16 01:06:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585156884] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417836384] [2023-12-16 01:06:43,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:43,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:43,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:43,806 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) [2023-12-16 01:06:43,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 01:06:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:06:43,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 01:06:43,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:06:43,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417836384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:43,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:06:43,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 01:06:43,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343226434] [2023-12-16 01:06:43,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:43,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:06:43,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:43,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:06:43,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:43,953 INFO L87 Difference]: Start difference. First operand 942 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 01:06:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:44,033 INFO L93 Difference]: Finished difference Result 1227 states and 1649 transitions. [2023-12-16 01:06:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:06:44,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 92 [2023-12-16 01:06:44,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:44,034 INFO L225 Difference]: With dead ends: 1227 [2023-12-16 01:06:44,034 INFO L226 Difference]: Without dead ends: 232 [2023-12-16 01:06:44,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:44,036 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 55 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:44,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 848 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:06:44,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-16 01:06:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-12-16 01:06:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 204 states have (on average 1.607843137254902) internal successors, (328), 205 states have internal predecessors, (328), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 01:06:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 370 transitions. [2023-12-16 01:06:44,044 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 370 transitions. Word has length 92 [2023-12-16 01:06:44,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:44,044 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 370 transitions. [2023-12-16 01:06:44,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 01:06:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 370 transitions. [2023-12-16 01:06:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:44,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:44,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:44,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 01:06:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:44,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:44,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1910470248, now seen corresponding path program 1 times [2023-12-16 01:06:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341877485] [2023-12-16 01:06:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:44,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:44,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:44,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341877485] [2023-12-16 01:06:44,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341877485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:44,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:44,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:06:44,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081807152] [2023-12-16 01:06:44,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:44,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:06:44,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:44,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:06:44,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:44,333 INFO L87 Difference]: Start difference. First operand 232 states and 370 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:45,089 INFO L93 Difference]: Finished difference Result 534 states and 866 transitions. [2023-12-16 01:06:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 01:06:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:45,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:45,091 INFO L225 Difference]: With dead ends: 534 [2023-12-16 01:06:45,091 INFO L226 Difference]: Without dead ends: 312 [2023-12-16 01:06:45,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:06:45,093 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 617 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:45,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 417 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:06:45,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-16 01:06:45,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 232. [2023-12-16 01:06:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 204 states have (on average 1.6029411764705883) internal successors, (327), 205 states have internal predecessors, (327), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 01:06:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 369 transitions. [2023-12-16 01:06:45,103 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 369 transitions. Word has length 111 [2023-12-16 01:06:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:45,103 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 369 transitions. [2023-12-16 01:06:45,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 369 transitions. [2023-12-16 01:06:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:45,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:45,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:06:45,104 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:45,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 487000282, now seen corresponding path program 1 times [2023-12-16 01:06:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:45,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563937090] [2023-12-16 01:06:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:45,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:45,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563937090] [2023-12-16 01:06:45,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563937090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:45,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:45,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:06:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245582453] [2023-12-16 01:06:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:45,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:06:45,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:06:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:45,217 INFO L87 Difference]: Start difference. First operand 232 states and 369 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:46,473 INFO L93 Difference]: Finished difference Result 837 states and 1365 transitions. [2023-12-16 01:06:46,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:06:46,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:46,476 INFO L225 Difference]: With dead ends: 837 [2023-12-16 01:06:46,476 INFO L226 Difference]: Without dead ends: 619 [2023-12-16 01:06:46,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:46,477 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 932 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:46,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 701 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 01:06:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-16 01:06:46,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 460. [2023-12-16 01:06:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 409 states have (on average 1.6136919315403424) internal successors, (660), 411 states have internal predecessors, (660), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2023-12-16 01:06:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 737 transitions. [2023-12-16 01:06:46,498 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 737 transitions. Word has length 111 [2023-12-16 01:06:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:46,499 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 737 transitions. [2023-12-16 01:06:46,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:46,499 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 737 transitions. [2023-12-16 01:06:46,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:46,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:46,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:46,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:06:46,501 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:46,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:46,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1765998942, now seen corresponding path program 1 times [2023-12-16 01:06:46,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:46,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419313111] [2023-12-16 01:06:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:46,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419313111] [2023-12-16 01:06:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419313111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:46,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:46,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226060347] [2023-12-16 01:06:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:46,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:46,687 INFO L87 Difference]: Start difference. First operand 460 states and 737 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:48,638 INFO L93 Difference]: Finished difference Result 1382 states and 2251 transitions. [2023-12-16 01:06:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:06:48,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:48,642 INFO L225 Difference]: With dead ends: 1382 [2023-12-16 01:06:48,642 INFO L226 Difference]: Without dead ends: 936 [2023-12-16 01:06:48,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:06:48,644 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 957 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:48,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1321 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:06:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-12-16 01:06:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 671. [2023-12-16 01:06:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 597 states have (on average 1.6063651591289783) internal successors, (959), 600 states have internal predecessors, (959), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-16 01:06:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1070 transitions. [2023-12-16 01:06:48,675 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1070 transitions. Word has length 111 [2023-12-16 01:06:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:48,676 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1070 transitions. [2023-12-16 01:06:48,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1070 transitions. [2023-12-16 01:06:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:48,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:48,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:48,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:06:48,678 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:48,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash 147024028, now seen corresponding path program 1 times [2023-12-16 01:06:48,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:48,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148002311] [2023-12-16 01:06:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:48,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:48,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148002311] [2023-12-16 01:06:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148002311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:48,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332012718] [2023-12-16 01:06:48,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:48,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:48,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:48,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:48,823 INFO L87 Difference]: Start difference. First operand 671 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:49,764 INFO L93 Difference]: Finished difference Result 1601 states and 2606 transitions. [2023-12-16 01:06:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:49,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:49,768 INFO L225 Difference]: With dead ends: 1601 [2023-12-16 01:06:49,768 INFO L226 Difference]: Without dead ends: 944 [2023-12-16 01:06:49,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:49,770 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 788 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:49,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 565 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:06:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-12-16 01:06:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 671. [2023-12-16 01:06:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 597 states have (on average 1.6013400335008374) internal successors, (956), 600 states have internal predecessors, (956), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-16 01:06:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1067 transitions. [2023-12-16 01:06:49,802 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1067 transitions. Word has length 111 [2023-12-16 01:06:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:49,802 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1067 transitions. [2023-12-16 01:06:49,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1067 transitions. [2023-12-16 01:06:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:49,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:49,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:49,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:06:49,804 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:49,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash 118523738, now seen corresponding path program 1 times [2023-12-16 01:06:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:49,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309887746] [2023-12-16 01:06:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:49,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:49,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309887746] [2023-12-16 01:06:49,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309887746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:49,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:49,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740813711] [2023-12-16 01:06:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:49,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:49,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:49,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:49,982 INFO L87 Difference]: Start difference. First operand 671 states and 1067 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:50,894 INFO L93 Difference]: Finished difference Result 1597 states and 2589 transitions. [2023-12-16 01:06:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:50,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:50,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:50,899 INFO L225 Difference]: With dead ends: 1597 [2023-12-16 01:06:50,899 INFO L226 Difference]: Without dead ends: 940 [2023-12-16 01:06:50,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:50,905 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 786 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:50,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 565 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:06:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-12-16 01:06:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 671. [2023-12-16 01:06:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 597 states have (on average 1.5963149078726968) internal successors, (953), 600 states have internal predecessors, (953), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-16 01:06:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1064 transitions. [2023-12-16 01:06:50,947 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1064 transitions. Word has length 111 [2023-12-16 01:06:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1064 transitions. [2023-12-16 01:06:50,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1064 transitions. [2023-12-16 01:06:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:50,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:50,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:50,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:06:50,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:50,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:50,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1822058276, now seen corresponding path program 1 times [2023-12-16 01:06:50,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:50,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701727283] [2023-12-16 01:06:50,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:50,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:51,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:51,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:51,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701727283] [2023-12-16 01:06:51,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701727283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:51,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:51,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245753726] [2023-12-16 01:06:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:51,071 INFO L87 Difference]: Start difference. First operand 671 states and 1064 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:52,197 INFO L93 Difference]: Finished difference Result 1593 states and 2572 transitions. [2023-12-16 01:06:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:52,202 INFO L225 Difference]: With dead ends: 1593 [2023-12-16 01:06:52,202 INFO L226 Difference]: Without dead ends: 936 [2023-12-16 01:06:52,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:52,204 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 687 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:52,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 673 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:06:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-12-16 01:06:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 671. [2023-12-16 01:06:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 597 states have (on average 1.5912897822445562) internal successors, (950), 600 states have internal predecessors, (950), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-16 01:06:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1061 transitions. [2023-12-16 01:06:52,293 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1061 transitions. Word has length 111 [2023-12-16 01:06:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:52,293 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1061 transitions. [2023-12-16 01:06:52,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1061 transitions. [2023-12-16 01:06:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:52,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:52,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:52,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:06:52,295 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:52,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash 55004954, now seen corresponding path program 1 times [2023-12-16 01:06:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133919107] [2023-12-16 01:06:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:52,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:52,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133919107] [2023-12-16 01:06:52,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133919107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:52,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:52,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:52,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269806968] [2023-12-16 01:06:52,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:52,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:52,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:52,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:52,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:52,443 INFO L87 Difference]: Start difference. First operand 671 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:54,334 INFO L93 Difference]: Finished difference Result 2167 states and 3476 transitions. [2023-12-16 01:06:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:06:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:54,340 INFO L225 Difference]: With dead ends: 2167 [2023-12-16 01:06:54,340 INFO L226 Difference]: Without dead ends: 1510 [2023-12-16 01:06:54,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:06:54,343 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 930 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:54,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 1319 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:06:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2023-12-16 01:06:54,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1106. [2023-12-16 01:06:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 986 states have (on average 1.5831643002028397) internal successors, (1561), 991 states have internal predecessors, (1561), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-16 01:06:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1744 transitions. [2023-12-16 01:06:54,391 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1744 transitions. Word has length 111 [2023-12-16 01:06:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:54,391 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1744 transitions. [2023-12-16 01:06:54,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1744 transitions. [2023-12-16 01:06:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:54,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:54,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:54,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:06:54,393 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:54,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -715728612, now seen corresponding path program 1 times [2023-12-16 01:06:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172086215] [2023-12-16 01:06:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:54,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:54,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:54,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172086215] [2023-12-16 01:06:54,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172086215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:54,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:54,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:54,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112022056] [2023-12-16 01:06:54,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:54,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:54,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:54,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:54,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:54,509 INFO L87 Difference]: Start difference. First operand 1106 states and 1744 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:55,368 INFO L93 Difference]: Finished difference Result 2589 states and 4147 transitions. [2023-12-16 01:06:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:55,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:55,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:55,390 INFO L225 Difference]: With dead ends: 2589 [2023-12-16 01:06:55,390 INFO L226 Difference]: Without dead ends: 1497 [2023-12-16 01:06:55,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:55,393 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 720 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:55,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 672 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:06:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2023-12-16 01:06:55,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1106. [2023-12-16 01:06:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 986 states have (on average 1.5780933062880325) internal successors, (1556), 991 states have internal predecessors, (1556), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-16 01:06:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1739 transitions. [2023-12-16 01:06:55,439 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1739 transitions. Word has length 111 [2023-12-16 01:06:55,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:55,439 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1739 transitions. [2023-12-16 01:06:55,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:55,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1739 transitions. [2023-12-16 01:06:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:55,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:55,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:55,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:06:55,441 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:55,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1710422310, now seen corresponding path program 1 times [2023-12-16 01:06:55,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:55,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899334476] [2023-12-16 01:06:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:55,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:55,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899334476] [2023-12-16 01:06:55,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899334476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:55,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:55,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843621332] [2023-12-16 01:06:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:55,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:55,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:55,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:55,585 INFO L87 Difference]: Start difference. First operand 1106 states and 1739 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:57,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:57,637 INFO L93 Difference]: Finished difference Result 4068 states and 6477 transitions. [2023-12-16 01:06:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:06:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:06:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:57,648 INFO L225 Difference]: With dead ends: 4068 [2023-12-16 01:06:57,648 INFO L226 Difference]: Without dead ends: 2976 [2023-12-16 01:06:57,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:06:57,651 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1181 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:57,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1312 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2222 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:06:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2023-12-16 01:06:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1968. [2023-12-16 01:06:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1760 states have (on average 1.5704545454545455) internal successors, (2764), 1769 states have internal predecessors, (2764), 145 states have call successors, (145), 54 states have call predecessors, (145), 62 states have return successors, (180), 152 states have call predecessors, (180), 145 states have call successors, (180) [2023-12-16 01:06:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 3089 transitions. [2023-12-16 01:06:57,788 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 3089 transitions. Word has length 111 [2023-12-16 01:06:57,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:57,788 INFO L495 AbstractCegarLoop]: Abstraction has 1968 states and 3089 transitions. [2023-12-16 01:06:57,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 3089 transitions. [2023-12-16 01:06:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:06:57,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:57,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:57,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:06:57,790 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:57,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:57,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1998268764, now seen corresponding path program 1 times [2023-12-16 01:06:57,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:57,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193558648] [2023-12-16 01:06:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:57,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:06:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:06:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:06:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:06:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:57,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:57,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193558648] [2023-12-16 01:06:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193558648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:57,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783412289] [2023-12-16 01:06:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:57,921 INFO L87 Difference]: Start difference. First operand 1968 states and 3089 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:00,157 INFO L93 Difference]: Finished difference Result 7396 states and 11761 transitions. [2023-12-16 01:07:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:07:00,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:00,177 INFO L225 Difference]: With dead ends: 7396 [2023-12-16 01:07:00,177 INFO L226 Difference]: Without dead ends: 5442 [2023-12-16 01:07:00,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:07:00,184 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 982 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:00,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1308 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:07:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2023-12-16 01:07:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 3649. [2023-12-16 01:07:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 3269 states have (on average 1.5656163964515142) internal successors, (5118), 3286 states have internal predecessors, (5118), 261 states have call successors, (261), 102 states have call predecessors, (261), 118 states have return successors, (358), 276 states have call predecessors, (358), 261 states have call successors, (358) [2023-12-16 01:07:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5737 transitions. [2023-12-16 01:07:00,478 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 5737 transitions. Word has length 111 [2023-12-16 01:07:00,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:00,478 INFO L495 AbstractCegarLoop]: Abstraction has 3649 states and 5737 transitions. [2023-12-16 01:07:00,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:00,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5737 transitions. [2023-12-16 01:07:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:00,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:00,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:00,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:07:00,480 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:00,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash 39693978, now seen corresponding path program 1 times [2023-12-16 01:07:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345863016] [2023-12-16 01:07:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:00,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:00,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345863016] [2023-12-16 01:07:00,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345863016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:00,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:00,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:00,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337588256] [2023-12-16 01:07:00,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:00,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:00,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:00,632 INFO L87 Difference]: Start difference. First operand 3649 states and 5737 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:03,084 INFO L93 Difference]: Finished difference Result 13609 states and 21675 transitions. [2023-12-16 01:07:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:07:03,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:03,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:03,121 INFO L225 Difference]: With dead ends: 13609 [2023-12-16 01:07:03,121 INFO L226 Difference]: Without dead ends: 9974 [2023-12-16 01:07:03,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:07:03,130 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 960 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:03,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1312 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 01:07:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9974 states. [2023-12-16 01:07:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9974 to 7067. [2023-12-16 01:07:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7067 states, 6351 states have (on average 1.564792945992757) internal successors, (9938), 6384 states have internal predecessors, (9938), 485 states have call successors, (485), 198 states have call predecessors, (485), 230 states have return successors, (760), 516 states have call predecessors, (760), 485 states have call successors, (760) [2023-12-16 01:07:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 11183 transitions. [2023-12-16 01:07:03,563 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 11183 transitions. Word has length 111 [2023-12-16 01:07:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:03,564 INFO L495 AbstractCegarLoop]: Abstraction has 7067 states and 11183 transitions. [2023-12-16 01:07:03,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 11183 transitions. [2023-12-16 01:07:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:03,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:03,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:03,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:07:03,569 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:03,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1839436968, now seen corresponding path program 1 times [2023-12-16 01:07:03,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426216138] [2023-12-16 01:07:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:03,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:03,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:03,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426216138] [2023-12-16 01:07:03,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426216138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:03,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:03,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:03,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672762037] [2023-12-16 01:07:03,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:03,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:03,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:03,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:03,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:03,692 INFO L87 Difference]: Start difference. First operand 7067 states and 11183 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:06,013 INFO L93 Difference]: Finished difference Result 26129 states and 41843 transitions. [2023-12-16 01:07:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:07:06,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:06,091 INFO L225 Difference]: With dead ends: 26129 [2023-12-16 01:07:06,091 INFO L226 Difference]: Without dead ends: 19076 [2023-12-16 01:07:06,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:07:06,115 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1040 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:06,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1312 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:07:06,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19076 states. [2023-12-16 01:07:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19076 to 13900. [2023-12-16 01:07:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13900 states, 12528 states have (on average 1.5648148148148149) internal successors, (19604), 12593 states have internal predecessors, (19604), 917 states have call successors, (917), 390 states have call predecessors, (917), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2023-12-16 01:07:07,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13900 states to 13900 states and 22231 transitions. [2023-12-16 01:07:07,182 INFO L78 Accepts]: Start accepts. Automaton has 13900 states and 22231 transitions. Word has length 111 [2023-12-16 01:07:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:07,183 INFO L495 AbstractCegarLoop]: Abstraction has 13900 states and 22231 transitions. [2023-12-16 01:07:07,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 13900 states and 22231 transitions. [2023-12-16 01:07:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:07,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:07,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:07,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:07:07,197 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:07,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:07,197 INFO L85 PathProgramCache]: Analyzing trace with hash -514580774, now seen corresponding path program 1 times [2023-12-16 01:07:07,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:07,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752262887] [2023-12-16 01:07:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:07,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752262887] [2023-12-16 01:07:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752262887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:07,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777179774] [2023-12-16 01:07:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:07,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:07,296 INFO L87 Difference]: Start difference. First operand 13900 states and 22231 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:08,868 INFO L93 Difference]: Finished difference Result 31497 states and 51148 transitions. [2023-12-16 01:07:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:07:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:08,922 INFO L225 Difference]: With dead ends: 31497 [2023-12-16 01:07:08,922 INFO L226 Difference]: Without dead ends: 17611 [2023-12-16 01:07:08,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:07:08,949 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 690 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:08,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 672 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:07:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17611 states. [2023-12-16 01:07:09,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17611 to 13900. [2023-12-16 01:07:09,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13900 states, 12528 states have (on average 1.5596264367816093) internal successors, (19539), 12593 states have internal predecessors, (19539), 917 states have call successors, (917), 390 states have call predecessors, (917), 454 states have return successors, (1710), 980 states have call predecessors, (1710), 917 states have call successors, (1710) [2023-12-16 01:07:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13900 states to 13900 states and 22166 transitions. [2023-12-16 01:07:09,643 INFO L78 Accepts]: Start accepts. Automaton has 13900 states and 22166 transitions. Word has length 111 [2023-12-16 01:07:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:09,643 INFO L495 AbstractCegarLoop]: Abstraction has 13900 states and 22166 transitions. [2023-12-16 01:07:09,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 13900 states and 22166 transitions. [2023-12-16 01:07:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:09,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:09,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:09,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:07:09,651 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:09,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1052177176, now seen corresponding path program 1 times [2023-12-16 01:07:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:09,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140496132] [2023-12-16 01:07:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:09,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:09,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140496132] [2023-12-16 01:07:09,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140496132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:09,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:09,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:09,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974544178] [2023-12-16 01:07:09,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:09,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:09,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:09,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:09,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:09,759 INFO L87 Difference]: Start difference. First operand 13900 states and 22166 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:13,339 INFO L93 Difference]: Finished difference Result 49854 states and 80385 transitions. [2023-12-16 01:07:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:07:13,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:13,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:13,455 INFO L225 Difference]: With dead ends: 49854 [2023-12-16 01:07:13,455 INFO L226 Difference]: Without dead ends: 35968 [2023-12-16 01:07:13,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:07:13,492 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 924 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:13,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1312 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 01:07:13,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35968 states. [2023-12-16 01:07:15,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35968 to 27630. [2023-12-16 01:07:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27630 states, 24978 states have (on average 1.5587717191128192) internal successors, (38935), 25107 states have internal predecessors, (38935), 1749 states have call successors, (1749), 774 states have call predecessors, (1749), 902 states have return successors, (4064), 1876 states have call predecessors, (4064), 1749 states have call successors, (4064) [2023-12-16 01:07:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27630 states to 27630 states and 44748 transitions. [2023-12-16 01:07:15,290 INFO L78 Accepts]: Start accepts. Automaton has 27630 states and 44748 transitions. Word has length 111 [2023-12-16 01:07:15,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:15,291 INFO L495 AbstractCegarLoop]: Abstraction has 27630 states and 44748 transitions. [2023-12-16 01:07:15,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:15,291 INFO L276 IsEmpty]: Start isEmpty. Operand 27630 states and 44748 transitions. [2023-12-16 01:07:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:15,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:15,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:15,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:07:15,308 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:15,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -5660902, now seen corresponding path program 1 times [2023-12-16 01:07:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6738500] [2023-12-16 01:07:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:15,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6738500] [2023-12-16 01:07:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6738500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:15,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628209037] [2023-12-16 01:07:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:15,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:15,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:15,442 INFO L87 Difference]: Start difference. First operand 27630 states and 44748 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:19,588 INFO L93 Difference]: Finished difference Result 97246 states and 159433 transitions. [2023-12-16 01:07:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:07:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:19,954 INFO L225 Difference]: With dead ends: 97246 [2023-12-16 01:07:19,954 INFO L226 Difference]: Without dead ends: 69630 [2023-12-16 01:07:20,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:07:20,014 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 969 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:20,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 870 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:07:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69630 states. [2023-12-16 01:07:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69630 to 55087. [2023-12-16 01:07:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55087 states, 49939 states have (on average 1.5588818358397245) internal successors, (77849), 50196 states have internal predecessors, (77849), 3349 states have call successors, (3349), 1542 states have call predecessors, (3349), 1798 states have return successors, (10166), 3604 states have call predecessors, (10166), 3349 states have call successors, (10166) [2023-12-16 01:07:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55087 states to 55087 states and 91364 transitions. [2023-12-16 01:07:23,524 INFO L78 Accepts]: Start accepts. Automaton has 55087 states and 91364 transitions. Word has length 111 [2023-12-16 01:07:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:23,525 INFO L495 AbstractCegarLoop]: Abstraction has 55087 states and 91364 transitions. [2023-12-16 01:07:23,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 55087 states and 91364 transitions. [2023-12-16 01:07:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 01:07:23,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:23,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:23,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:07:23,562 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:23,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1148163368, now seen corresponding path program 1 times [2023-12-16 01:07:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:23,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525869948] [2023-12-16 01:07:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:23,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:23,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525869948] [2023-12-16 01:07:23,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525869948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:23,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:23,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:07:23,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153416421] [2023-12-16 01:07:23,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:23,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:07:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:07:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:07:23,803 INFO L87 Difference]: Start difference. First operand 55087 states and 91364 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:29,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:29,295 INFO L93 Difference]: Finished difference Result 156758 states and 258492 transitions. [2023-12-16 01:07:29,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:07:29,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-16 01:07:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:29,789 INFO L225 Difference]: With dead ends: 156758 [2023-12-16 01:07:29,789 INFO L226 Difference]: Without dead ends: 101686 [2023-12-16 01:07:29,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 01:07:29,869 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1186 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:29,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1018 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:07:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101686 states. [2023-12-16 01:07:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101686 to 82407. [2023-12-16 01:07:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82407 states, 74612 states have (on average 1.5515332654264729) internal successors, (115763), 75126 states have internal predecessors, (115763), 5094 states have call successors, (5094), 2316 states have call predecessors, (5094), 2700 states have return successors, (14099), 5220 states have call predecessors, (14099), 5094 states have call successors, (14099) [2023-12-16 01:07:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82407 states to 82407 states and 134956 transitions. [2023-12-16 01:07:34,201 INFO L78 Accepts]: Start accepts. Automaton has 82407 states and 134956 transitions. Word has length 111 [2023-12-16 01:07:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:34,202 INFO L495 AbstractCegarLoop]: Abstraction has 82407 states and 134956 transitions. [2023-12-16 01:07:34,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand 82407 states and 134956 transitions. [2023-12-16 01:07:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 01:07:34,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:34,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:34,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 01:07:34,468 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:34,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:34,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1195814750, now seen corresponding path program 1 times [2023-12-16 01:07:34,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:34,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354503248] [2023-12-16 01:07:34,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:34,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:07:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 01:07:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 01:07:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 01:07:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 01:07:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-16 01:07:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-16 01:07:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 01:07:34,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:34,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354503248] [2023-12-16 01:07:34,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354503248] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:07:34,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940316697] [2023-12-16 01:07:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:34,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:07:34,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:07:34,646 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) [2023-12-16 01:07:34,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 01:07:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:34,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:07:34,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:07:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:07:34,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:07:34,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940316697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:34,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:07:34,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-16 01:07:34,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087703612] [2023-12-16 01:07:34,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:34,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:07:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:34,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:07:34,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:34,890 INFO L87 Difference]: Start difference. First operand 82407 states and 134956 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Received shutdown request... [2023-12-16 01:07:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:07:40,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:40,210 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 249 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:40,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 485 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:07:40,211 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:07:40,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:07:40,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:07:40,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 01:07:40,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-16 01:07:40,429 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (82407states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (156715 states constructed, input type IntersectNwa). [2023-12-16 01:07:40,430 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:07:40,432 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:40,434 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:07:40,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:07:40 BoogieIcfgContainer [2023-12-16 01:07:40,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:07:40,435 INFO L158 Benchmark]: Toolchain (without parser) took 64084.79ms. Allocated memory was 274.7MB in the beginning and 5.9GB in the end (delta: 5.6GB). Free memory was 220.3MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 01:07:40,435 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:07:40,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.91ms. Allocated memory is still 274.7MB. Free memory was 220.3MB in the beginning and 197.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 01:07:40,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.27ms. Allocated memory is still 274.7MB. Free memory was 197.7MB in the beginning and 194.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:07:40,436 INFO L158 Benchmark]: Boogie Preprocessor took 73.46ms. Allocated memory is still 274.7MB. Free memory was 194.1MB in the beginning and 189.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:07:40,448 INFO L158 Benchmark]: RCFGBuilder took 811.49ms. Allocated memory is still 274.7MB. Free memory was 189.3MB in the beginning and 138.5MB in the end (delta: 50.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-16 01:07:40,450 INFO L158 Benchmark]: TraceAbstraction took 62769.08ms. Allocated memory was 274.7MB in the beginning and 5.9GB in the end (delta: 5.6GB). Free memory was 138.0MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 01:07:40,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 360.91ms. Allocated memory is still 274.7MB. Free memory was 220.3MB in the beginning and 197.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.27ms. Allocated memory is still 274.7MB. Free memory was 197.7MB in the beginning and 194.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.46ms. Allocated memory is still 274.7MB. Free memory was 194.1MB in the beginning and 189.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 811.49ms. Allocated memory is still 274.7MB. Free memory was 189.3MB in the beginning and 138.5MB in the end (delta: 50.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * TraceAbstraction took 62769.08ms. Allocated memory was 274.7MB in the beginning and 5.9GB in the end (delta: 5.6GB). Free memory was 138.0MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 390]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 390). Cancelled while NwaCegarLoop was constructing difference of abstraction (82407states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (156715 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while NwaCegarLoop was constructing difference of abstraction (82407states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (156715 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 296 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 62.7s, OverallIterations: 27, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 44.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20126 SdHoareTripleChecker+Valid, 22.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19732 mSDsluCounter, 23846 SdHoareTripleChecker+Invalid, 18.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16420 mSDsCounter, 1426 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32449 IncrementalHoareTripleChecker+Invalid, 33875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1426 mSolverCounterUnsat, 7426 mSDtfsCounter, 32449 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1080 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82407occurred in iteration=26, InterpolantAutomatonStates: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.8s AutomataMinimizationTime, 26 MinimizatonAttempts, 59783 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2925 NumberOfCodeBlocks, 2925 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3013 ConstructedInterpolants, 0 QuantifiedInterpolants, 7508 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1870 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 33 InterpolantComputations, 26 PerfectInterpolantSequences, 274/377 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