/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/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:23:47,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:23:48,047 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 06:23:48,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:23:48,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:23:48,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:23:48,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:23:48,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:23:48,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:23:48,076 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:23:48,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:23:48,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:23:48,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:23:48,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:23:48,078 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:23:48,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:23:48,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:23:48,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:23:48,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:23:48,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:23:48,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:23:48,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:23:48,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:23:48,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:23:48,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:23:48,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:23:48,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:23:48,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:23:48,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:23:48,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:23:48,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:23:48,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:23:48,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:23:48,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:23:48,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:23:48,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:23:48,297 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:23:48,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-16 06:23:49,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:23:49,802 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:23:49,803 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-16 06:23:49,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961906019/e26469fa9dff49389ac084e334a65106/FLAGa7819723d [2023-12-16 06:23:49,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961906019/e26469fa9dff49389ac084e334a65106 [2023-12-16 06:23:49,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:23:49,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:23:49,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:23:49,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:23:49,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:23:49,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:23:49" (1/1) ... [2023-12-16 06:23:49,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351e75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:49, skipping insertion in model container [2023-12-16 06:23:49,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:23:49" (1/1) ... [2023-12-16 06:23:49,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:23:50,150 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2023-12-16 06:23:50,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:23:50,217 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:23:50,274 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2023-12-16 06:23:50,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:23:50,397 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:23:50,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50 WrapperNode [2023-12-16 06:23:50,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:23:50,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:23:50,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:23:50,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:23:50,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,516 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 676 [2023-12-16 06:23:50,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:23:50,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:23:50,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:23:50,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:23:50,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,550 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 06:23:50,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:23:50,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:23:50,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:23:50,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:23:50,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (1/1) ... [2023-12-16 06:23:50,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:23:50,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:23:50,589 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 06:23:50,652 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 06:23:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:23:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:23:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:23:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:23:50,854 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:23:50,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:23:51,302 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:23:51,347 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:23:51,347 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:23:51,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:23:51 BoogieIcfgContainer [2023-12-16 06:23:51,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:23:51,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:23:51,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:23:51,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:23:51,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:23:49" (1/3) ... [2023-12-16 06:23:51,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f356345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:23:51, skipping insertion in model container [2023-12-16 06:23:51,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:50" (2/3) ... [2023-12-16 06:23:51,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f356345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:23:51, skipping insertion in model container [2023-12-16 06:23:51,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:23:51" (3/3) ... [2023-12-16 06:23:51,356 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-16 06:23:51,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:23:51,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:23:51,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:23:51,429 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;@15705c8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:23:51,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:23:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 159 states have (on average 1.7169811320754718) internal successors, (273), 160 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 06:23:51,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:51,470 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] [2023-12-16 06:23:51,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:51,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash -334794023, now seen corresponding path program 1 times [2023-12-16 06:23:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:51,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675222226] [2023-12-16 06:23:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,009 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 06:23:52,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675222226] [2023-12-16 06:23:52,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675222226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938169237] [2023-12-16 06:23:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,045 INFO L87 Difference]: Start difference. First operand has 161 states, 159 states have (on average 1.7169811320754718) internal successors, (273), 160 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:52,120 INFO L93 Difference]: Finished difference Result 381 states and 623 transitions. [2023-12-16 06:23:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-16 06:23:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:52,136 INFO L225 Difference]: With dead ends: 381 [2023-12-16 06:23:52,136 INFO L226 Difference]: Without dead ends: 259 [2023-12-16 06:23:52,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,142 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 211 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:52,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 601 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-16 06:23:52,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2023-12-16 06:23:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.50390625) internal successors, (385), 256 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 385 transitions. [2023-12-16 06:23:52,188 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 385 transitions. Word has length 72 [2023-12-16 06:23:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:52,188 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 385 transitions. [2023-12-16 06:23:52,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 385 transitions. [2023-12-16 06:23:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 06:23:52,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:52,190 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] [2023-12-16 06:23:52,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:23:52,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:52,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash 848511110, now seen corresponding path program 1 times [2023-12-16 06:23:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025646056] [2023-12-16 06:23:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,307 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 06:23:52,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025646056] [2023-12-16 06:23:52,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025646056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628294209] [2023-12-16 06:23:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,309 INFO L87 Difference]: Start difference. First operand 257 states and 385 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:52,330 INFO L93 Difference]: Finished difference Result 653 states and 1017 transitions. [2023-12-16 06:23:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-16 06:23:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:52,332 INFO L225 Difference]: With dead ends: 653 [2023-12-16 06:23:52,332 INFO L226 Difference]: Without dead ends: 439 [2023-12-16 06:23:52,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,334 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 168 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:52,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 537 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-16 06:23:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 437. [2023-12-16 06:23:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.5412844036697249) internal successors, (672), 436 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 672 transitions. [2023-12-16 06:23:52,351 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 672 transitions. Word has length 73 [2023-12-16 06:23:52,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:52,351 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 672 transitions. [2023-12-16 06:23:52,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 672 transitions. [2023-12-16 06:23:52,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 06:23:52,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:52,353 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] [2023-12-16 06:23:52,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:23:52,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:52,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1828009384, now seen corresponding path program 1 times [2023-12-16 06:23:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:52,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873010801] [2023-12-16 06:23:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:52,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,423 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 06:23:52,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873010801] [2023-12-16 06:23:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873010801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488653254] [2023-12-16 06:23:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,430 INFO L87 Difference]: Start difference. First operand 437 states and 672 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:52,451 INFO L93 Difference]: Finished difference Result 1161 states and 1826 transitions. [2023-12-16 06:23:52,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:52,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-16 06:23:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:52,455 INFO L225 Difference]: With dead ends: 1161 [2023-12-16 06:23:52,456 INFO L226 Difference]: Without dead ends: 767 [2023-12-16 06:23:52,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,461 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 163 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:52,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 522 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-12-16 06:23:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2023-12-16 06:23:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 764 states have (on average 1.5602094240837696) internal successors, (1192), 764 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1192 transitions. [2023-12-16 06:23:52,495 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1192 transitions. Word has length 74 [2023-12-16 06:23:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:52,499 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1192 transitions. [2023-12-16 06:23:52,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,503 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1192 transitions. [2023-12-16 06:23:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 06:23:52,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:52,506 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] [2023-12-16 06:23:52,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:23:52,506 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:52,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 158292751, now seen corresponding path program 1 times [2023-12-16 06:23:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:52,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245817988] [2023-12-16 06:23:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,633 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 06:23:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245817988] [2023-12-16 06:23:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245817988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551681023] [2023-12-16 06:23:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,635 INFO L87 Difference]: Start difference. First operand 765 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:52,693 INFO L93 Difference]: Finished difference Result 2081 states and 3282 transitions. [2023-12-16 06:23:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-16 06:23:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:52,700 INFO L225 Difference]: With dead ends: 2081 [2023-12-16 06:23:52,700 INFO L226 Difference]: Without dead ends: 1359 [2023-12-16 06:23:52,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,710 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 158 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:52,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 507 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-12-16 06:23:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1357. [2023-12-16 06:23:52,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.5663716814159292) internal successors, (2124), 1356 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2124 transitions. [2023-12-16 06:23:52,734 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2124 transitions. Word has length 75 [2023-12-16 06:23:52,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:52,734 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 2124 transitions. [2023-12-16 06:23:52,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2124 transitions. [2023-12-16 06:23:52,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 06:23:52,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:52,736 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] [2023-12-16 06:23:52,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:23:52,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:52,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2027632149, now seen corresponding path program 1 times [2023-12-16 06:23:52,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:52,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426737115] [2023-12-16 06:23:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,828 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 06:23:52,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426737115] [2023-12-16 06:23:52,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426737115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651547459] [2023-12-16 06:23:52,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,831 INFO L87 Difference]: Start difference. First operand 1357 states and 2124 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:52,855 INFO L93 Difference]: Finished difference Result 3729 states and 5870 transitions. [2023-12-16 06:23:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-16 06:23:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:52,863 INFO L225 Difference]: With dead ends: 3729 [2023-12-16 06:23:52,863 INFO L226 Difference]: Without dead ends: 2415 [2023-12-16 06:23:52,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,865 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 153 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:52,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 492 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:52,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2023-12-16 06:23:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2413. [2023-12-16 06:23:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2412 states have (on average 1.5638474295190714) internal successors, (3772), 2412 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3772 transitions. [2023-12-16 06:23:52,900 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3772 transitions. Word has length 76 [2023-12-16 06:23:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:52,901 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3772 transitions. [2023-12-16 06:23:52,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3772 transitions. [2023-12-16 06:23:52,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:23:52,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:52,903 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] [2023-12-16 06:23:52,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:23:52,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:52,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash -113675860, now seen corresponding path program 1 times [2023-12-16 06:23:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625459973] [2023-12-16 06:23:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:52,995 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 06:23:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:52,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625459973] [2023-12-16 06:23:52,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625459973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:52,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:52,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:52,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831506160] [2023-12-16 06:23:52,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:52,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:52,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:52,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:52,997 INFO L87 Difference]: Start difference. First operand 2413 states and 3772 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:53,028 INFO L93 Difference]: Finished difference Result 6641 states and 10398 transitions. [2023-12-16 06:23:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:53,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-16 06:23:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:53,040 INFO L225 Difference]: With dead ends: 6641 [2023-12-16 06:23:53,040 INFO L226 Difference]: Without dead ends: 4271 [2023-12-16 06:23:53,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:53,046 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 148 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:53,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 477 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2023-12-16 06:23:53,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 4269. [2023-12-16 06:23:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4269 states, 4268 states have (on average 1.5548266166822868) internal successors, (6636), 4268 states have internal predecessors, (6636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 6636 transitions. [2023-12-16 06:23:53,123 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 6636 transitions. Word has length 77 [2023-12-16 06:23:53,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:53,123 INFO L495 AbstractCegarLoop]: Abstraction has 4269 states and 6636 transitions. [2023-12-16 06:23:53,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 6636 transitions. [2023-12-16 06:23:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 06:23:53,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:53,124 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] [2023-12-16 06:23:53,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:23:53,124 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:53,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash 530651538, now seen corresponding path program 1 times [2023-12-16 06:23:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:53,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280479156] [2023-12-16 06:23:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:53,278 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 06:23:53,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:53,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280479156] [2023-12-16 06:23:53,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280479156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:53,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:53,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:23:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951679078] [2023-12-16 06:23:53,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:53,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:23:53,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:23:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:23:53,280 INFO L87 Difference]: Start difference. First operand 4269 states and 6636 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:53,534 INFO L93 Difference]: Finished difference Result 33851 states and 52787 transitions. [2023-12-16 06:23:53,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:23:53,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-16 06:23:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:53,621 INFO L225 Difference]: With dead ends: 33851 [2023-12-16 06:23:53,621 INFO L226 Difference]: Without dead ends: 29625 [2023-12-16 06:23:53,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:23:53,640 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 2559 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2559 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:53,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2559 Valid, 2472 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:53,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29625 states. [2023-12-16 06:23:53,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29625 to 8493. [2023-12-16 06:23:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8493 states, 8492 states have (on average 1.5426283560998586) internal successors, (13100), 8492 states have internal predecessors, (13100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8493 states to 8493 states and 13100 transitions. [2023-12-16 06:23:54,011 INFO L78 Accepts]: Start accepts. Automaton has 8493 states and 13100 transitions. Word has length 78 [2023-12-16 06:23:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:54,011 INFO L495 AbstractCegarLoop]: Abstraction has 8493 states and 13100 transitions. [2023-12-16 06:23:54,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 8493 states and 13100 transitions. [2023-12-16 06:23:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 06:23:54,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:54,012 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] [2023-12-16 06:23:54,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:23:54,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:54,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash -749127703, now seen corresponding path program 1 times [2023-12-16 06:23:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:54,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043195755] [2023-12-16 06:23:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:54,326 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 06:23:54,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:54,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043195755] [2023-12-16 06:23:54,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043195755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:54,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:54,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:23:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271525864] [2023-12-16 06:23:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:54,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:23:54,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:54,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:23:54,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:23:54,328 INFO L87 Difference]: Start difference. First operand 8493 states and 13100 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:54,589 INFO L93 Difference]: Finished difference Result 51513 states and 78770 transitions. [2023-12-16 06:23:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:23:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-16 06:23:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:54,659 INFO L225 Difference]: With dead ends: 51513 [2023-12-16 06:23:54,659 INFO L226 Difference]: Without dead ends: 43063 [2023-12-16 06:23:54,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:23:54,682 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 877 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:54,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 2373 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:54,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43063 states. [2023-12-16 06:23:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43063 to 43053. [2023-12-16 06:23:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43053 states, 43052 states have (on average 1.5232741800613212) internal successors, (65580), 43052 states have internal predecessors, (65580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43053 states to 43053 states and 65580 transitions. [2023-12-16 06:23:55,411 INFO L78 Accepts]: Start accepts. Automaton has 43053 states and 65580 transitions. Word has length 79 [2023-12-16 06:23:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:55,411 INFO L495 AbstractCegarLoop]: Abstraction has 43053 states and 65580 transitions. [2023-12-16 06:23:55,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 43053 states and 65580 transitions. [2023-12-16 06:23:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:55,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:55,412 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] [2023-12-16 06:23:55,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:23:55,413 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:55,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1290801728, now seen corresponding path program 1 times [2023-12-16 06:23:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521563358] [2023-12-16 06:23:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:55,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:55,493 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 06:23:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521563358] [2023-12-16 06:23:55,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521563358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:55,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:55,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:55,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360627625] [2023-12-16 06:23:55,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:55,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:55,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:55,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:55,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:55,495 INFO L87 Difference]: Start difference. First operand 43053 states and 65580 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:56,365 INFO L93 Difference]: Finished difference Result 129073 states and 196654 transitions. [2023-12-16 06:23:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:56,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-16 06:23:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:56,631 INFO L225 Difference]: With dead ends: 129073 [2023-12-16 06:23:56,631 INFO L226 Difference]: Without dead ends: 86063 [2023-12-16 06:23:56,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:56,685 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 991 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:56,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 252 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86063 states. [2023-12-16 06:23:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86063 to 86061. [2023-12-16 06:23:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86061 states, 86060 states have (on average 1.5153613757843365) internal successors, (130412), 86060 states have internal predecessors, (130412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86061 states to 86061 states and 130412 transitions. [2023-12-16 06:23:58,367 INFO L78 Accepts]: Start accepts. Automaton has 86061 states and 130412 transitions. Word has length 81 [2023-12-16 06:23:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:58,367 INFO L495 AbstractCegarLoop]: Abstraction has 86061 states and 130412 transitions. [2023-12-16 06:23:58,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 86061 states and 130412 transitions. [2023-12-16 06:23:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:58,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:58,368 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] [2023-12-16 06:23:58,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:23:58,369 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:58,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1861218309, now seen corresponding path program 1 times [2023-12-16 06:23:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:58,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929343909] [2023-12-16 06:23:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:58,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:58,764 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 06:23:58,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929343909] [2023-12-16 06:23:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929343909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:23:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069202653] [2023-12-16 06:23:58,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:58,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:58,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:58,765 INFO L87 Difference]: Start difference. First operand 86061 states and 130412 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:59,329 INFO L93 Difference]: Finished difference Result 175151 states and 263853 transitions. [2023-12-16 06:23:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:23:59,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-16 06:23:59,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:59,630 INFO L225 Difference]: With dead ends: 175151 [2023-12-16 06:23:59,630 INFO L226 Difference]: Without dead ends: 175149 [2023-12-16 06:23:59,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:23:59,858 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 358 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:59,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1124 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175149 states. [2023-12-16 06:24:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175149 to 89133. [2023-12-16 06:24:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89133 states, 89132 states have (on average 1.4975990665529777) internal successors, (133484), 89132 states have internal predecessors, (133484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89133 states to 89133 states and 133484 transitions. [2023-12-16 06:24:01,844 INFO L78 Accepts]: Start accepts. Automaton has 89133 states and 133484 transitions. Word has length 81 [2023-12-16 06:24:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:24:01,845 INFO L495 AbstractCegarLoop]: Abstraction has 89133 states and 133484 transitions. [2023-12-16 06:24:01,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:01,845 INFO L276 IsEmpty]: Start isEmpty. Operand 89133 states and 133484 transitions. [2023-12-16 06:24:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:24:01,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:24:01,846 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] [2023-12-16 06:24:01,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:24:01,847 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:24:01,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:24:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1852619600, now seen corresponding path program 1 times [2023-12-16 06:24:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:24:01,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262770685] [2023-12-16 06:24:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:01,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:24:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:01,893 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 06:24:01,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:24:01,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262770685] [2023-12-16 06:24:01,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262770685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:24:01,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:24:01,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:24:01,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395881940] [2023-12-16 06:24:01,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:24:01,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:24:01,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:24:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:24:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:01,894 INFO L87 Difference]: Start difference. First operand 89133 states and 133484 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:02,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:24:02,917 INFO L93 Difference]: Finished difference Result 199123 states and 297728 transitions. [2023-12-16 06:24:02,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:24:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-16 06:24:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:24:03,098 INFO L225 Difference]: With dead ends: 199123 [2023-12-16 06:24:03,098 INFO L226 Difference]: Without dead ends: 110033 [2023-12-16 06:24:03,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:03,178 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 136 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:03,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 460 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:24:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110033 states. [2023-12-16 06:24:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110033 to 110031. [2023-12-16 06:24:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110031 states, 110030 states have (on average 1.4899027537944196) internal successors, (163934), 110030 states have internal predecessors, (163934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110031 states to 110031 states and 163934 transitions. [2023-12-16 06:24:05,349 INFO L78 Accepts]: Start accepts. Automaton has 110031 states and 163934 transitions. Word has length 82 [2023-12-16 06:24:05,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:24:05,349 INFO L495 AbstractCegarLoop]: Abstraction has 110031 states and 163934 transitions. [2023-12-16 06:24:05,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:05,350 INFO L276 IsEmpty]: Start isEmpty. Operand 110031 states and 163934 transitions. [2023-12-16 06:24:05,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 06:24:05,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:24:05,388 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:05,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:24:05,389 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:24:05,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:24:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1688420547, now seen corresponding path program 1 times [2023-12-16 06:24:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:24:05,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719517306] [2023-12-16 06:24:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:05,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:24:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:24:05,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:24:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719517306] [2023-12-16 06:24:05,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719517306] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:24:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107632422] [2023-12-16 06:24:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:05,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:24:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:24:05,568 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 06:24:05,569 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 06:24:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:05,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 06:24:05,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:24:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:24:05,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:24:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:24:06,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107632422] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:24:06,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:24:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2023-12-16 06:24:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226420990] [2023-12-16 06:24:06,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:24:06,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:24:06,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:24:06,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:24:06,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:24:06,303 INFO L87 Difference]: Start difference. First operand 110031 states and 163934 transitions. Second operand has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 9 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:08,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:24:08,156 INFO L93 Difference]: Finished difference Result 459906 states and 687750 transitions. [2023-12-16 06:24:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:24:08,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 9 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-16 06:24:08,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:24:08,953 INFO L225 Difference]: With dead ends: 459906 [2023-12-16 06:24:08,953 INFO L226 Difference]: Without dead ends: 370816 [2023-12-16 06:24:09,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:24:09,141 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1893 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:09,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 1939 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:24:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370816 states. [2023-12-16 06:24:14,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370816 to 361711. [2023-12-16 06:24:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361711 states, 361710 states have (on average 1.4826407895828149) internal successors, (536286), 361710 states have internal predecessors, (536286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:15,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361711 states to 361711 states and 536286 transitions. [2023-12-16 06:24:15,706 INFO L78 Accepts]: Start accepts. Automaton has 361711 states and 536286 transitions. Word has length 111 [2023-12-16 06:24:15,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:24:15,707 INFO L495 AbstractCegarLoop]: Abstraction has 361711 states and 536286 transitions. [2023-12-16 06:24:15,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 9 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:15,707 INFO L276 IsEmpty]: Start isEmpty. Operand 361711 states and 536286 transitions. [2023-12-16 06:24:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 06:24:15,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:24:15,785 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:15,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:24:16,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 06:24:16,012 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:24:16,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:24:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1587790688, now seen corresponding path program 1 times [2023-12-16 06:24:16,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:24:16,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693470593] [2023-12-16 06:24:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:24:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:24:16,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:24:16,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693470593] [2023-12-16 06:24:16,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693470593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:24:16,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:24:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:24:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131495437] [2023-12-16 06:24:16,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:24:16,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:24:16,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:24:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:24:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:16,126 INFO L87 Difference]: Start difference. First operand 361711 states and 536286 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:24:20,286 INFO L93 Difference]: Finished difference Result 931180 states and 1379340 transitions. [2023-12-16 06:24:20,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:24:20,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-16 06:24:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:24:22,020 INFO L225 Difference]: With dead ends: 931180 [2023-12-16 06:24:22,020 INFO L226 Difference]: Without dead ends: 617418 [2023-12-16 06:24:22,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:22,699 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 138 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:22,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 459 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:24:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617418 states. [2023-12-16 06:24:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617418 to 600648. [2023-12-16 06:24:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600648 states, 600647 states have (on average 1.4708173020093334) internal successors, (883442), 600647 states have internal predecessors, (883442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600648 states to 600648 states and 883442 transitions. [2023-12-16 06:24:36,457 INFO L78 Accepts]: Start accepts. Automaton has 600648 states and 883442 transitions. Word has length 112 [2023-12-16 06:24:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:24:36,458 INFO L495 AbstractCegarLoop]: Abstraction has 600648 states and 883442 transitions. [2023-12-16 06:24:36,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 600648 states and 883442 transitions. [2023-12-16 06:24:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 06:24:36,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:24:36,674 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:36,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:24:36,674 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:24:36,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:24:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1811453927, now seen corresponding path program 1 times [2023-12-16 06:24:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:24:36,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769442994] [2023-12-16 06:24:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:24:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:24:36,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:24:36,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769442994] [2023-12-16 06:24:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769442994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:24:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:24:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:24:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553981524] [2023-12-16 06:24:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:24:36,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:24:36,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:24:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:24:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:36,801 INFO L87 Difference]: Start difference. First operand 600648 states and 883442 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:24:42,066 INFO L93 Difference]: Finished difference Result 1047390 states and 1541740 transitions. [2023-12-16 06:24:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:24:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-16 06:24:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:24:43,657 INFO L225 Difference]: With dead ends: 1047390 [2023-12-16 06:24:43,657 INFO L226 Difference]: Without dead ends: 788764 [2023-12-16 06:24:44,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:24:44,017 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 141 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:44,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 516 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:24:45,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788764 states. Received shutdown request... [2023-12-16 06:24:50,852 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 06:24:52,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 06:24:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788764 to 736074. Cannot interrupt operation gracefully because timeout expired. Forcing shutdown [2023-12-16 06:24:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736074 states, 736073 states have (on average 1.4582602540780603) internal successors, (1073386), 736073 states have internal predecessors, (1073386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:55,992 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:24:55,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:24:55,993 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 06:24:55,997 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:56,025 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:24:56,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:24:56 BoogieIcfgContainer [2023-12-16 06:24:56,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:24:56,028 INFO L158 Benchmark]: Toolchain (without parser) took 66189.23ms. Allocated memory was 269.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 225.7MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 4.6GB. Max. memory is 8.0GB. [2023-12-16 06:24:56,028 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:24:56,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.82ms. Allocated memory is still 269.5MB. Free memory was 225.4MB in the beginning and 204.6MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 06:24:56,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.56ms. Allocated memory is still 269.5MB. Free memory was 204.3MB in the beginning and 201.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:24:56,029 INFO L158 Benchmark]: Boogie Preprocessor took 48.21ms. Allocated memory is still 269.5MB. Free memory was 200.8MB in the beginning and 197.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 06:24:56,032 INFO L158 Benchmark]: RCFGBuilder took 784.42ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 206.9MB in the end (delta: -9.9MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. [2023-12-16 06:24:56,032 INFO L158 Benchmark]: TraceAbstraction took 64675.50ms. Allocated memory was 269.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 206.4MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 4.6GB. Max. memory is 8.0GB. [2023-12-16 06:24:56,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 558.82ms. Allocated memory is still 269.5MB. Free memory was 225.4MB in the beginning and 204.6MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 117.56ms. Allocated memory is still 269.5MB. Free memory was 204.3MB in the beginning and 201.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.21ms. Allocated memory is still 269.5MB. Free memory was 200.8MB in the beginning and 197.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 784.42ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 206.9MB in the end (delta: -9.9MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. * TraceAbstraction took 64675.50ms. Allocated memory was 269.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 206.4MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 4.6GB. 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: 368]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 368). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 161 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.6s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8094 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8094 mSDsluCounter, 12731 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7906 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 583 IncrementalHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 4825 mSDtfsCounter, 583 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600648occurred in iteration=13, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 39.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 133049 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1294 NumberOfCodeBlocks, 1294 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1389 ConstructedInterpolants, 0 QuantifiedInterpolants, 8525 SizeOfPredicates, 7 NumberOfNonLiveVariables, 441 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 44/83 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 !ENTRY org.eclipse.osgi 4 0 2023-12-16 06:24:56.056 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961906019/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961906019/.metadata/.log.