/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:01:26,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:01:26,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 18:01:26,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:01:26,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:01:26,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:01:26,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:01:26,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:01:26,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:01:26,351 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:01:26,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:01:26,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:01:26,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:01:26,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:01:26,353 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:01:26,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:01:26,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:01:26,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:01:26,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:01:26,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:01:26,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:01:26,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:01:26,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:01:26,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:01:26,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:01:26,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:01:26,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:01:26,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:01:26,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:01:26,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:26,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:01:26,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:01:26,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:01:26,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:01:26,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:01:26,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:01:26,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:01:26,564 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:01:26,564 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:01:26,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-15 18:01:27,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:01:27,987 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:01:27,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-15 18:01:28,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3b091f6/71a502ca294e4e4aa93b7c0978cd71db/FLAG34c64b994 [2023-12-15 18:01:28,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3b091f6/71a502ca294e4e4aa93b7c0978cd71db [2023-12-15 18:01:28,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:01:28,028 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:01:28,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:28,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:01:28,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:01:28,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:28" (1/1) ... [2023-12-15 18:01:28,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f99d1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:28, skipping insertion in model container [2023-12-15 18:01:28,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:28" (1/1) ... [2023-12-15 18:01:28,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:01:28,514 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c[26925,26938] [2023-12-15 18:01:28,561 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c[32480,32493] [2023-12-15 18:01:29,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:29,129 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:01:29,172 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c[26925,26938] [2023-12-15 18:01:29,181 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c[32480,32493] [2023-12-15 18:01:29,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:29,507 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:01:29,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29 WrapperNode [2023-12-15 18:01:29,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:29,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:29,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:01:29,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:01:29,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:29,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:29,822 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5284 [2023-12-15 18:01:29,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:29,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:01:29,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:01:29,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:01:29,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:29,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:29,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,032 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]. [2023-12-15 18:01:30,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:01:30,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:01:30,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:01:30,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:01:30,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (1/1) ... [2023-12-15 18:01:30,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:30,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:01:30,382 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) [2023-12-15 18:01:30,389 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 [2023-12-15 18:01:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:01:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:01:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:01:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:01:30,543 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:01:30,545 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:01:33,568 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:01:33,609 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:01:33,609 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 18:01:33,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:33 BoogieIcfgContainer [2023-12-15 18:01:33,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:01:33,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:01:33,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:01:33,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:01:33,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:01:28" (1/3) ... [2023-12-15 18:01:33,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49218ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:33, skipping insertion in model container [2023-12-15 18:01:33,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:29" (2/3) ... [2023-12-15 18:01:33,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49218ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:33, skipping insertion in model container [2023-12-15 18:01:33,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:33" (3/3) ... [2023-12-15 18:01:33,615 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-15 18:01:33,626 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:01:33,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 18:01:33,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:01:33,671 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;@33df5c7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:01:33,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 18:01:33,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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) [2023-12-15 18:01:33,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:33,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:33,683 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] [2023-12-15 18:01:33,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:33,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1384355979, now seen corresponding path program 1 times [2023-12-15 18:01:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:33,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207001485] [2023-12-15 18:01:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:33,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:33,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207001485] [2023-12-15 18:01:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207001485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:33,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380766680] [2023-12-15 18:01:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:33,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:01:33,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:01:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:33,890 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-15 18:01:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:33,962 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-15 18:01:33,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:01:33,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:33,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:33,975 INFO L225 Difference]: With dead ends: 1702 [2023-12-15 18:01:33,975 INFO L226 Difference]: Without dead ends: 880 [2023-12-15 18:01:33,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:33,982 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:33,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-15 18:01:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-15 18:01:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 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) [2023-12-15 18:01:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-15 18:01:34,035 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 27 [2023-12-15 18:01:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:34,035 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-15 18:01:34,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-15 18:01:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-15 18:01:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:34,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:34,036 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] [2023-12-15 18:01:34,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:01:34,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:34,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:34,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1105172983, now seen corresponding path program 1 times [2023-12-15 18:01:34,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:34,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199368455] [2023-12-15 18:01:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:34,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:34,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:34,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199368455] [2023-12-15 18:01:34,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199368455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:34,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:34,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:34,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422301671] [2023-12-15 18:01:34,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:34,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:34,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:34,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:34,173 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-15 18:01:34,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:34,251 INFO L93 Difference]: Finished difference Result 944 states and 1766 transitions. [2023-12-15 18:01:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:34,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:34,254 INFO L225 Difference]: With dead ends: 944 [2023-12-15 18:01:34,254 INFO L226 Difference]: Without dead ends: 880 [2023-12-15 18:01:34,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:34,256 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-15 18:01:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-15 18:01:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.825740318906606) internal successors, (1603), 879 states have internal predecessors, (1603), 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) [2023-12-15 18:01:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1603 transitions. [2023-12-15 18:01:34,270 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1603 transitions. Word has length 27 [2023-12-15 18:01:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:34,270 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1603 transitions. [2023-12-15 18:01:34,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-15 18:01:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1603 transitions. [2023-12-15 18:01:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-15 18:01:34,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:34,271 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] [2023-12-15 18:01:34,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:01:34,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:34,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:34,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1758120397, now seen corresponding path program 1 times [2023-12-15 18:01:34,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:34,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010849397] [2023-12-15 18:01:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:34,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:34,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010849397] [2023-12-15 18:01:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010849397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:34,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042299520] [2023-12-15 18:01:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:34,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:34,346 INFO L87 Difference]: Start difference. First operand 880 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2023-12-15 18:01:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:37,041 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2023-12-15 18:01:37,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:37,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2023-12-15 18:01:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:37,053 INFO L225 Difference]: With dead ends: 2384 [2023-12-15 18:01:37,054 INFO L226 Difference]: Without dead ends: 1631 [2023-12-15 18:01:37,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:37,056 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 935 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:37,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 589 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 18:01:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-15 18:01:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-15 18:01:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.614487415592388) internal successors, (2630), 1630 states have internal predecessors, (2630), 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) [2023-12-15 18:01:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2630 transitions. [2023-12-15 18:01:37,098 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2630 transitions. Word has length 47 [2023-12-15 18:01:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:37,098 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2630 transitions. [2023-12-15 18:01:37,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2023-12-15 18:01:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2630 transitions. [2023-12-15 18:01:37,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 18:01:37,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:37,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:37,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:01:37,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:37,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 131157287, now seen corresponding path program 1 times [2023-12-15 18:01:37,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:37,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455602904] [2023-12-15 18:01:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:37,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:37,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:37,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455602904] [2023-12-15 18:01:37,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455602904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:37,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:37,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310032906] [2023-12-15 18:01:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:37,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:37,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:37,365 INFO L87 Difference]: Start difference. First operand 1631 states and 2630 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-15 18:01:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:37,771 INFO L93 Difference]: Finished difference Result 2607 states and 4214 transitions. [2023-12-15 18:01:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 18:01:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2023-12-15 18:01:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:37,780 INFO L225 Difference]: With dead ends: 2607 [2023-12-15 18:01:37,780 INFO L226 Difference]: Without dead ends: 2546 [2023-12-15 18:01:37,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-15 18:01:37,782 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 13544 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:37,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 5483 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 18:01:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2023-12-15 18:01:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1690. [2023-12-15 18:01:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1688 states have (on average 1.6149289099526067) internal successors, (2726), 1689 states have internal predecessors, (2726), 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) [2023-12-15 18:01:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2726 transitions. [2023-12-15 18:01:37,818 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2726 transitions. Word has length 87 [2023-12-15 18:01:37,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:37,819 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2726 transitions. [2023-12-15 18:01:37,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-15 18:01:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2726 transitions. [2023-12-15 18:01:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:37,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:37,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 18:01:37,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:37,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1346972695, now seen corresponding path program 1 times [2023-12-15 18:01:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:37,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049814022] [2023-12-15 18:01:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:37,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049814022] [2023-12-15 18:01:37,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049814022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:37,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:37,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:37,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451852100] [2023-12-15 18:01:37,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:37,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:37,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:37,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:37,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:37,906 INFO L87 Difference]: Start difference. First operand 1690 states and 2726 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-15 18:01:37,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:37,942 INFO L93 Difference]: Finished difference Result 1919 states and 3097 transitions. [2023-12-15 18:01:37,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:37,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:37,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:37,948 INFO L225 Difference]: With dead ends: 1919 [2023-12-15 18:01:37,948 INFO L226 Difference]: Without dead ends: 1799 [2023-12-15 18:01:37,948 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 [2023-12-15 18:01:37,949 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:37,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-15 18:01:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1795. [2023-12-15 18:01:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.6140546569994423) internal successors, (2894), 1794 states have internal predecessors, (2894), 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) [2023-12-15 18:01:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2894 transitions. [2023-12-15 18:01:37,975 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2894 transitions. Word has length 89 [2023-12-15 18:01:37,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:37,975 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2894 transitions. [2023-12-15 18:01:37,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-15 18:01:37,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2894 transitions. [2023-12-15 18:01:37,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:37,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:37,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:37,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:01:37,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:37,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:37,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1349117647, now seen corresponding path program 1 times [2023-12-15 18:01:37,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:37,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576434292] [2023-12-15 18:01:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:37,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:38,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:38,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576434292] [2023-12-15 18:01:38,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576434292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:38,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:38,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:38,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143151866] [2023-12-15 18:01:38,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:38,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:38,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:38,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:38,291 INFO L87 Difference]: Start difference. First operand 1795 states and 2894 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-15 18:01:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:38,689 INFO L93 Difference]: Finished difference Result 2022 states and 3258 transitions. [2023-12-15 18:01:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:38,694 INFO L225 Difference]: With dead ends: 2022 [2023-12-15 18:01:38,694 INFO L226 Difference]: Without dead ends: 1797 [2023-12-15 18:01:38,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-15 18:01:38,696 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 7619 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7619 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:38,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7619 Valid, 2264 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-12-15 18:01:38,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1795. [2023-12-15 18:01:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.6129392080312326) internal successors, (2892), 1794 states have internal predecessors, (2892), 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) [2023-12-15 18:01:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2892 transitions. [2023-12-15 18:01:38,725 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2892 transitions. Word has length 89 [2023-12-15 18:01:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:38,725 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2892 transitions. [2023-12-15 18:01:38,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-15 18:01:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2892 transitions. [2023-12-15 18:01:38,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 18:01:38,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:38,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:38,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:01:38,727 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:38,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1255956927, now seen corresponding path program 1 times [2023-12-15 18:01:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:38,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677315787] [2023-12-15 18:01:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:38,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677315787] [2023-12-15 18:01:38,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677315787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:38,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:38,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:38,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805592428] [2023-12-15 18:01:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:38,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:38,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:38,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:38,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:38,906 INFO L87 Difference]: Start difference. First operand 1795 states and 2892 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-15 18:01:38,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:38,945 INFO L93 Difference]: Finished difference Result 1803 states and 2901 transitions. [2023-12-15 18:01:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-15 18:01:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:38,951 INFO L225 Difference]: With dead ends: 1803 [2023-12-15 18:01:38,951 INFO L226 Difference]: Without dead ends: 1801 [2023-12-15 18:01:38,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:38,953 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:38,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:38,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-15 18:01:38,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2023-12-15 18:01:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.6110183639398998) internal successors, (2895), 1798 states have internal predecessors, (2895), 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) [2023-12-15 18:01:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2895 transitions. [2023-12-15 18:01:38,989 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2895 transitions. Word has length 90 [2023-12-15 18:01:38,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:38,989 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2895 transitions. [2023-12-15 18:01:38,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-15 18:01:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2895 transitions. [2023-12-15 18:01:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:38,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:38,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:38,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:01:38,991 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:38,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1698293969, now seen corresponding path program 1 times [2023-12-15 18:01:38,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:38,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606965670] [2023-12-15 18:01:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:38,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:39,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606965670] [2023-12-15 18:01:39,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606965670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117217079] [2023-12-15 18:01:39,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:39,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:39,054 INFO L87 Difference]: Start difference. First operand 1799 states and 2895 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,086 INFO L93 Difference]: Finished difference Result 2241 states and 3595 transitions. [2023-12-15 18:01:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:39,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:39,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,092 INFO L225 Difference]: With dead ends: 2241 [2023-12-15 18:01:39,093 INFO L226 Difference]: Without dead ends: 2012 [2023-12-15 18:01:39,093 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 [2023-12-15 18:01:39,094 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 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 [2023-12-15 18:01:39,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2023-12-15 18:01:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2010. [2023-12-15 18:01:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 2008 states have (on average 1.6065737051792828) internal successors, (3226), 2009 states have internal predecessors, (3226), 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) [2023-12-15 18:01:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3226 transitions. [2023-12-15 18:01:39,131 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3226 transitions. Word has length 91 [2023-12-15 18:01:39,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,131 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3226 transitions. [2023-12-15 18:01:39,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3226 transitions. [2023-12-15 18:01:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:39,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:39,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:01:39,133 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash -942909905, now seen corresponding path program 1 times [2023-12-15 18:01:39,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617736197] [2023-12-15 18:01:39,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:39,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617736197] [2023-12-15 18:01:39,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617736197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233536456] [2023-12-15 18:01:39,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:39,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:39,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:39,209 INFO L87 Difference]: Start difference. First operand 2010 states and 3226 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,248 INFO L93 Difference]: Finished difference Result 2858 states and 4560 transitions. [2023-12-15 18:01:39,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:39,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:39,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,256 INFO L225 Difference]: With dead ends: 2858 [2023-12-15 18:01:39,257 INFO L226 Difference]: Without dead ends: 2418 [2023-12-15 18:01:39,259 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 [2023-12-15 18:01:39,261 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 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 [2023-12-15 18:01:39,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2023-12-15 18:01:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2416. [2023-12-15 18:01:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2414 states have (on average 1.5973487986743993) internal successors, (3856), 2415 states have internal predecessors, (3856), 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) [2023-12-15 18:01:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3856 transitions. [2023-12-15 18:01:39,312 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3856 transitions. Word has length 91 [2023-12-15 18:01:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,312 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3856 transitions. [2023-12-15 18:01:39,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3856 transitions. [2023-12-15 18:01:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:39,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:39,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:01:39,314 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1621879761, now seen corresponding path program 1 times [2023-12-15 18:01:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157587923] [2023-12-15 18:01:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:39,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157587923] [2023-12-15 18:01:39,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157587923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952939889] [2023-12-15 18:01:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:39,380 INFO L87 Difference]: Start difference. First operand 2416 states and 3856 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,455 INFO L93 Difference]: Finished difference Result 4044 states and 6394 transitions. [2023-12-15 18:01:39,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,513 INFO L225 Difference]: With dead ends: 4044 [2023-12-15 18:01:39,513 INFO L226 Difference]: Without dead ends: 3198 [2023-12-15 18:01:39,514 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 [2023-12-15 18:01:39,515 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 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 [2023-12-15 18:01:39,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:39,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2023-12-15 18:01:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3196. [2023-12-15 18:01:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3194 states have (on average 1.5817157169693175) internal successors, (5052), 3195 states have internal predecessors, (5052), 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) [2023-12-15 18:01:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 5052 transitions. [2023-12-15 18:01:39,572 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 5052 transitions. Word has length 91 [2023-12-15 18:01:39,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,572 INFO L495 AbstractCegarLoop]: Abstraction has 3196 states and 5052 transitions. [2023-12-15 18:01:39,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 5052 transitions. [2023-12-15 18:01:39,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:39,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:39,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 18:01:39,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1581935825, now seen corresponding path program 1 times [2023-12-15 18:01:39,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089890933] [2023-12-15 18:01:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:39,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089890933] [2023-12-15 18:01:39,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089890933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190223143] [2023-12-15 18:01:39,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:39,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:39,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:39,628 INFO L87 Difference]: Start difference. First operand 3196 states and 5052 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,701 INFO L93 Difference]: Finished difference Result 6320 states and 9870 transitions. [2023-12-15 18:01:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:39,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,717 INFO L225 Difference]: With dead ends: 6320 [2023-12-15 18:01:39,717 INFO L226 Difference]: Without dead ends: 4694 [2023-12-15 18:01:39,721 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 [2023-12-15 18:01:39,721 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 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 [2023-12-15 18:01:39,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:39,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2023-12-15 18:01:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4692. [2023-12-15 18:01:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 1.5599147121535182) internal successors, (7316), 4691 states have internal predecessors, (7316), 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) [2023-12-15 18:01:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 7316 transitions. [2023-12-15 18:01:39,824 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 7316 transitions. Word has length 91 [2023-12-15 18:01:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:39,824 INFO L495 AbstractCegarLoop]: Abstraction has 4692 states and 7316 transitions. [2023-12-15 18:01:39,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 7316 transitions. [2023-12-15 18:01:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:39,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:39,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:39,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 18:01:39,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:39,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:39,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1318858449, now seen corresponding path program 1 times [2023-12-15 18:01:39,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:39,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399936010] [2023-12-15 18:01:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:39,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:39,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:39,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399936010] [2023-12-15 18:01:39,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399936010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:39,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:39,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438171394] [2023-12-15 18:01:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:39,882 INFO L87 Difference]: Start difference. First operand 4692 states and 7316 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:39,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:39,979 INFO L93 Difference]: Finished difference Result 10680 states and 16438 transitions. [2023-12-15 18:01:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:39,997 INFO L225 Difference]: With dead ends: 10680 [2023-12-15 18:01:39,997 INFO L226 Difference]: Without dead ends: 7558 [2023-12-15 18:01:40,003 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 [2023-12-15 18:01:40,004 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 1513 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1774 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 [2023-12-15 18:01:40,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1774 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7558 states. [2023-12-15 18:01:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 7556. [2023-12-15 18:01:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 7554 states have (on average 1.5340217103521314) internal successors, (11588), 7555 states have internal predecessors, (11588), 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) [2023-12-15 18:01:40,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 11588 transitions. [2023-12-15 18:01:40,164 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 11588 transitions. Word has length 91 [2023-12-15 18:01:40,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:40,164 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 11588 transitions. [2023-12-15 18:01:40,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 11588 transitions. [2023-12-15 18:01:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:40,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:40,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:40,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 18:01:40,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:40,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:40,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2087375407, now seen corresponding path program 1 times [2023-12-15 18:01:40,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:40,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512795552] [2023-12-15 18:01:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:40,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:40,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512795552] [2023-12-15 18:01:40,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512795552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:40,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:40,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092166601] [2023-12-15 18:01:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:40,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:40,218 INFO L87 Difference]: Start difference. First operand 7556 states and 11588 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:40,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:40,474 INFO L93 Difference]: Finished difference Result 19016 states and 28806 transitions. [2023-12-15 18:01:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:40,497 INFO L225 Difference]: With dead ends: 19016 [2023-12-15 18:01:40,498 INFO L226 Difference]: Without dead ends: 13030 [2023-12-15 18:01:40,505 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 [2023-12-15 18:01:40,506 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1515 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1780 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 [2023-12-15 18:01:40,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13030 states. [2023-12-15 18:01:40,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13030 to 13028. [2023-12-15 18:01:40,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13028 states, 13026 states have (on average 1.506218332565638) internal successors, (19620), 13027 states have internal predecessors, (19620), 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) [2023-12-15 18:01:40,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 19620 transitions. [2023-12-15 18:01:40,796 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 19620 transitions. Word has length 91 [2023-12-15 18:01:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:40,796 INFO L495 AbstractCegarLoop]: Abstraction has 13028 states and 19620 transitions. [2023-12-15 18:01:40,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 19620 transitions. [2023-12-15 18:01:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:40,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:40,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:40,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:01:40,798 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:40,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1353296593, now seen corresponding path program 1 times [2023-12-15 18:01:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365569977] [2023-12-15 18:01:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:40,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:40,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365569977] [2023-12-15 18:01:40,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365569977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:40,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:40,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:40,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110313115] [2023-12-15 18:01:40,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:40,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:40,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:40,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:40,849 INFO L87 Difference]: Start difference. First operand 13028 states and 19620 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:41,166 INFO L93 Difference]: Finished difference Result 34920 states and 52006 transitions. [2023-12-15 18:01:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:41,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:41,209 INFO L225 Difference]: With dead ends: 34920 [2023-12-15 18:01:41,209 INFO L226 Difference]: Without dead ends: 23462 [2023-12-15 18:01:41,229 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 [2023-12-15 18:01:41,230 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 1521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1782 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 [2023-12-15 18:01:41,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1782 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23462 states. [2023-12-15 18:01:41,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23462 to 23460. [2023-12-15 18:01:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23460 states, 23458 states have (on average 1.477534316651036) internal successors, (34660), 23459 states have internal predecessors, (34660), 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) [2023-12-15 18:01:41,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23460 states to 23460 states and 34660 transitions. [2023-12-15 18:01:41,848 INFO L78 Accepts]: Start accepts. Automaton has 23460 states and 34660 transitions. Word has length 91 [2023-12-15 18:01:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:41,848 INFO L495 AbstractCegarLoop]: Abstraction has 23460 states and 34660 transitions. [2023-12-15 18:01:41,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:41,848 INFO L276 IsEmpty]: Start isEmpty. Operand 23460 states and 34660 transitions. [2023-12-15 18:01:41,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-15 18:01:41,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:41,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:41,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 18:01:41,849 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:41,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1258857876, now seen corresponding path program 1 times [2023-12-15 18:01:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:41,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492304867] [2023-12-15 18:01:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:41,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:41,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:41,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492304867] [2023-12-15 18:01:41,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492304867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:41,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:41,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:41,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671309250] [2023-12-15 18:01:41,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:41,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:41,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:41,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:41,906 INFO L87 Difference]: Start difference. First operand 23460 states and 34660 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-15 18:01:42,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:42,470 INFO L93 Difference]: Finished difference Result 45995 states and 68202 transitions. [2023-12-15 18:01:42,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:42,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-12-15 18:01:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:42,523 INFO L225 Difference]: With dead ends: 45995 [2023-12-15 18:01:42,523 INFO L226 Difference]: Without dead ends: 33960 [2023-12-15 18:01:42,543 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 [2023-12-15 18:01:42,544 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1524 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1779 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 [2023-12-15 18:01:42,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33960 states. [2023-12-15 18:01:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33960 to 33958. [2023-12-15 18:01:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33958 states, 33956 states have (on average 1.4693721286370598) internal successors, (49894), 33957 states have internal predecessors, (49894), 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) [2023-12-15 18:01:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33958 states to 33958 states and 49894 transitions. [2023-12-15 18:01:43,485 INFO L78 Accepts]: Start accepts. Automaton has 33958 states and 49894 transitions. Word has length 93 [2023-12-15 18:01:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:43,485 INFO L495 AbstractCegarLoop]: Abstraction has 33958 states and 49894 transitions. [2023-12-15 18:01:43,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-15 18:01:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 33958 states and 49894 transitions. [2023-12-15 18:01:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:43,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:43,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:43,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 18:01:43,491 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:43,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1139897777, now seen corresponding path program 1 times [2023-12-15 18:01:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:43,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815351883] [2023-12-15 18:01:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-15 18:01:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:43,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815351883] [2023-12-15 18:01:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815351883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:43,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:43,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:43,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185997319] [2023-12-15 18:01:43,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:43,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:43,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:43,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:43,706 INFO L87 Difference]: Start difference. First operand 33958 states and 49894 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 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) [2023-12-15 18:01:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:47,888 INFO L93 Difference]: Finished difference Result 299448 states and 437871 transitions. [2023-12-15 18:01:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 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 115 [2023-12-15 18:01:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:48,713 INFO L225 Difference]: With dead ends: 299448 [2023-12-15 18:01:48,713 INFO L226 Difference]: Without dead ends: 267062 [2023-12-15 18:01:48,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:48,852 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 11808 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11808 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:48,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11808 Valid, 4962 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267062 states. [2023-12-15 18:01:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267062 to 66342. [2023-12-15 18:01:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66342 states, 66340 states have (on average 1.4602050045221586) internal successors, (96870), 66341 states have internal predecessors, (96870), 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) [2023-12-15 18:01:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66342 states to 66342 states and 96870 transitions. [2023-12-15 18:01:52,157 INFO L78 Accepts]: Start accepts. Automaton has 66342 states and 96870 transitions. Word has length 115 [2023-12-15 18:01:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:52,157 INFO L495 AbstractCegarLoop]: Abstraction has 66342 states and 96870 transitions. [2023-12-15 18:01:52,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 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) [2023-12-15 18:01:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 66342 states and 96870 transitions. [2023-12-15 18:01:52,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:52,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:52,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:52,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 18:01:52,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:52,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:52,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1895281841, now seen corresponding path program 1 times [2023-12-15 18:01:52,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:52,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079641313] [2023-12-15 18:01:52,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:52,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:01:52,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079641313] [2023-12-15 18:01:52,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079641313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:52,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:52,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:52,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323378838] [2023-12-15 18:01:52,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:52,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:52,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:52,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:52,534 INFO L87 Difference]: Start difference. First operand 66342 states and 96870 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2023-12-15 18:01:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:58,136 INFO L93 Difference]: Finished difference Result 331832 states and 484847 transitions. [2023-12-15 18:01:58,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 115 [2023-12-15 18:01:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:58,784 INFO L225 Difference]: With dead ends: 331832 [2023-12-15 18:01:58,784 INFO L226 Difference]: Without dead ends: 299446 [2023-12-15 18:01:58,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:58,909 INFO L413 NwaCegarLoop]: 1695 mSDtfsCounter, 11856 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11856 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:58,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11856 Valid, 4769 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:59,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299446 states. [2023-12-15 18:02:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299446 to 114982. [2023-12-15 18:02:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114982 states, 114980 states have (on average 1.4525482692642198) internal successors, (167014), 114981 states have internal predecessors, (167014), 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) [2023-12-15 18:02:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114982 states to 114982 states and 167014 transitions. [2023-12-15 18:02:04,320 INFO L78 Accepts]: Start accepts. Automaton has 114982 states and 167014 transitions. Word has length 115 [2023-12-15 18:02:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:02:04,320 INFO L495 AbstractCegarLoop]: Abstraction has 114982 states and 167014 transitions. [2023-12-15 18:02:04,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2023-12-15 18:02:04,321 INFO L276 IsEmpty]: Start isEmpty. Operand 114982 states and 167014 transitions. [2023-12-15 18:02:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:02:04,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:02:04,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:04,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 18:02:04,329 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:02:04,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:02:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1216311985, now seen corresponding path program 1 times [2023-12-15 18:02:04,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:02:04,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010009546] [2023-12-15 18:02:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:02:04,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:02:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:02:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 18:02:04,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:02:04,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010009546] [2023-12-15 18:02:04,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010009546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:02:04,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:02:04,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:02:04,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502906174] [2023-12-15 18:02:04,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:02:04,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:02:04,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:02:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:02:04,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:02:04,540 INFO L87 Difference]: Start difference. First operand 114982 states and 167014 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-12-15 18:02:11,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:02:11,366 INFO L93 Difference]: Finished difference Result 364216 states and 531823 transitions. [2023-12-15 18:02:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:02:11,366 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 115 [2023-12-15 18:02:11,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:02:12,211 INFO L225 Difference]: With dead ends: 364216 [2023-12-15 18:02:12,211 INFO L226 Difference]: Without dead ends: 331830 [2023-12-15 18:02:12,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:02:12,354 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 11927 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11927 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:02:12,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11927 Valid, 4767 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331830 states. [2023-12-15 18:02:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331830 to 147366. [2023-12-15 18:02:18,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147366 states, 147364 states have (on average 1.4521185635569067) internal successors, (213990), 147365 states have internal predecessors, (213990), 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) [2023-12-15 18:02:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147366 states to 147366 states and 213990 transitions. [2023-12-15 18:02:18,625 INFO L78 Accepts]: Start accepts. Automaton has 147366 states and 213990 transitions. Word has length 115 [2023-12-15 18:02:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:02:18,625 INFO L495 AbstractCegarLoop]: Abstraction has 147366 states and 213990 transitions. [2023-12-15 18:02:18,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-12-15 18:02:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 147366 states and 213990 transitions. [2023-12-15 18:02:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:02:18,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:02:18,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:18,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 18:02:18,653 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:02:18,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:02:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1256255921, now seen corresponding path program 1 times [2023-12-15 18:02:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:02:18,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638313112] [2023-12-15 18:02:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:02:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:02:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:02:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-15 18:02:18,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:02:18,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638313112] [2023-12-15 18:02:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638313112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:02:18,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:02:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:02:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325484002] [2023-12-15 18:02:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:02:18,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:02:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:02:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:02:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:02:18,865 INFO L87 Difference]: Start difference. First operand 147366 states and 213990 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) Received shutdown request... [2023-12-15 18:02:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:02:26,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:02:26,461 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 3425 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3425 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:02:26,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3425 Valid, 2175 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:26,462 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 18:02:26,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 18:02:26,463 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (147366states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (285682 states constructed, input type IntersectNwa). [2023-12-15 18:02:26,464 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 [2023-12-15 18:02:26,480 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 18:02:26,483 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:26,486 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:02:26,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:02:26 BoogieIcfgContainer [2023-12-15 18:02:26,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:02:26,492 INFO L158 Benchmark]: Toolchain (without parser) took 58464.33ms. Allocated memory was 245.4MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 179.3MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-15 18:02:26,492 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory was 123.9MB in the beginning and 123.8MB in the end (delta: 130.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:02:26,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1478.10ms. Allocated memory is still 245.4MB. Free memory was 179.1MB in the beginning and 128.2MB in the end (delta: 50.9MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2023-12-15 18:02:26,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 313.45ms. Allocated memory is still 245.4MB. Free memory was 128.2MB in the beginning and 120.4MB in the end (delta: 7.8MB). Peak memory consumption was 51.5MB. Max. memory is 8.0GB. [2023-12-15 18:02:26,493 INFO L158 Benchmark]: Boogie Preprocessor took 519.65ms. Allocated memory was 245.4MB in the beginning and 383.8MB in the end (delta: 138.4MB). Free memory was 120.4MB in the beginning and 255.6MB in the end (delta: -135.3MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. [2023-12-15 18:02:26,493 INFO L158 Benchmark]: RCFGBuilder took 3266.08ms. Allocated memory was 383.8MB in the beginning and 733.0MB in the end (delta: 349.2MB). Free memory was 255.1MB in the beginning and 459.5MB in the end (delta: -204.4MB). Peak memory consumption was 254.4MB. Max. memory is 8.0GB. [2023-12-15 18:02:26,493 INFO L158 Benchmark]: TraceAbstraction took 52880.38ms. Allocated memory was 733.0MB in the beginning and 7.3GB in the end (delta: 6.6GB). Free memory was 459.0MB in the beginning and 5.0GB in the end (delta: -4.5GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-15 18:02:26,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory was 123.9MB in the beginning and 123.8MB in the end (delta: 130.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1478.10ms. Allocated memory is still 245.4MB. Free memory was 179.1MB in the beginning and 128.2MB in the end (delta: 50.9MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 313.45ms. Allocated memory is still 245.4MB. Free memory was 128.2MB in the beginning and 120.4MB in the end (delta: 7.8MB). Peak memory consumption was 51.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 519.65ms. Allocated memory was 245.4MB in the beginning and 383.8MB in the end (delta: 138.4MB). Free memory was 120.4MB in the beginning and 255.6MB in the end (delta: -135.3MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3266.08ms. Allocated memory was 383.8MB in the beginning and 733.0MB in the end (delta: 349.2MB). Free memory was 255.1MB in the beginning and 459.5MB in the end (delta: -204.4MB). Peak memory consumption was 254.4MB. Max. memory is 8.0GB. * TraceAbstraction took 52880.38ms. Allocated memory was 733.0MB in the beginning and 7.3GB in the end (delta: 6.6GB). Free memory was 459.0MB in the beginning and 5.0GB in the end (delta: -4.5GB). Peak memory consumption was 2.1GB. 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: 685]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 685). Cancelled while NwaCegarLoop was constructing difference of abstraction (147366states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (285682 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 844]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 844). Cancelled while NwaCegarLoop was constructing difference of abstraction (147366states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (285682 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 884 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74778 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74778 mSDsluCounter, 52293 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23161 mSDsCounter, 722 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3862 IncrementalHoareTripleChecker+Invalid, 4584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 722 mSolverCounterUnsat, 29132 mSDtfsCounter, 3862 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147366occurred in iteration=18, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 570528 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1646 NumberOfCodeBlocks, 1646 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1627 ConstructedInterpolants, 0 QuantifiedInterpolants, 10743 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 80/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown