/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:36:31,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:36:31,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:36:31,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:36:31,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:36:31,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:36:31,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:36:31,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:36:31,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:36:31,692 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:36:31,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:36:31,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:36:31,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:36:31,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:36:31,695 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:36:31,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:36:31,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:36:31,695 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:36:31,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:36:31,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:36:31,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:36:31,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:36:31,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:36:31,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:36:31,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:36:31,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:36:31,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:36:31,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:36:31,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:36:31,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:36:31,699 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:36:31,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:36:31,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:36:31,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:36:31,895 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:36:31,895 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:36:31,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 13:36:32,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:36:33,035 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:36:33,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 13:36:33,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef1d56ca/e0e1218753ea451c93b55a43026de2a3/FLAG0dae1063a [2023-12-21 13:36:33,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ef1d56ca/e0e1218753ea451c93b55a43026de2a3 [2023-12-21 13:36:33,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:36:33,063 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:36:33,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:36:33,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:36:33,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:36:33,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ec0e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33, skipping insertion in model container [2023-12-21 13:36:33,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:36:33,271 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8607,8620] [2023-12-21 13:36:33,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:36:33,327 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:36:33,374 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8607,8620] [2023-12-21 13:36:33,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:36:33,410 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:36:33,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33 WrapperNode [2023-12-21 13:36:33,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:36:33,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:36:33,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:36:33,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:36:33,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,459 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 869 [2023-12-21 13:36:33,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:36:33,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:36:33,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:36:33,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:36:33,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,483 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]. [2023-12-21 13:36:33,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:36:33,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:36:33,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:36:33,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:36:33,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (1/1) ... [2023-12-21 13:36:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:36:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:36:33,577 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) [2023-12-21 13:36:33,608 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 [2023-12-21 13:36:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:36:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:36:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:36:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:36:33,742 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:36:33,744 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:36:34,242 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:36:34,275 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:36:34,276 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:36:34,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:34 BoogieIcfgContainer [2023-12-21 13:36:34,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:36:34,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:36:34,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:36:34,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:36:34,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:36:33" (1/3) ... [2023-12-21 13:36:34,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee36bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:34, skipping insertion in model container [2023-12-21 13:36:34,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:36:33" (2/3) ... [2023-12-21 13:36:34,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee36bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:36:34, skipping insertion in model container [2023-12-21 13:36:34,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:36:34" (3/3) ... [2023-12-21 13:36:34,281 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-21 13:36:34,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:36:34,293 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 13:36:34,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:36:34,328 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;@27288270, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:36:34,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 13:36:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 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) [2023-12-21 13:36:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 13:36:34,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:34,339 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] [2023-12-21 13:36:34,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:34,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:34,343 INFO L85 PathProgramCache]: Analyzing trace with hash -474104543, now seen corresponding path program 1 times [2023-12-21 13:36:34,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:34,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577889082] [2023-12-21 13:36:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:34,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:34,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577889082] [2023-12-21 13:36:34,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577889082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:34,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:34,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:34,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783409250] [2023-12-21 13:36:34,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:34,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:34,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:34,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:34,884 INFO L87 Difference]: Start difference. First operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2023-12-21 13:36:35,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:35,099 INFO L93 Difference]: Finished difference Result 860 states and 1396 transitions. [2023-12-21 13:36:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 80 [2023-12-21 13:36:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:35,117 INFO L225 Difference]: With dead ends: 860 [2023-12-21 13:36:35,117 INFO L226 Difference]: Without dead ends: 747 [2023-12-21 13:36:35,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:36:35,123 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2247 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:35,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2297 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-12-21 13:36:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2023-12-21 13:36:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.5015290519877675) internal successors, (491), 327 states have internal predecessors, (491), 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) [2023-12-21 13:36:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2023-12-21 13:36:35,166 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 80 [2023-12-21 13:36:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:35,167 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2023-12-21 13:36:35,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2023-12-21 13:36:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2023-12-21 13:36:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:36:35,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:35,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:35,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:36:35,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:35,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2091304489, now seen corresponding path program 1 times [2023-12-21 13:36:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:35,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543114630] [2023-12-21 13:36:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:35,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:35,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:35,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543114630] [2023-12-21 13:36:35,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543114630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:35,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:35,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:35,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780260095] [2023-12-21 13:36:35,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:35,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:35,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:35,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:35,435 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:35,627 INFO L93 Difference]: Finished difference Result 1424 states and 2198 transitions. [2023-12-21 13:36:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 13:36:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:35,631 INFO L225 Difference]: With dead ends: 1424 [2023-12-21 13:36:35,632 INFO L226 Difference]: Without dead ends: 1176 [2023-12-21 13:36:35,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:35,636 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 1016 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:35,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1959 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:36:35,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-12-21 13:36:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2023-12-21 13:36:35,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5389888603256212) internal successors, (1796), 1167 states have internal predecessors, (1796), 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) [2023-12-21 13:36:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1796 transitions. [2023-12-21 13:36:35,679 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1796 transitions. Word has length 81 [2023-12-21 13:36:35,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:35,681 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 1796 transitions. [2023-12-21 13:36:35,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1796 transitions. [2023-12-21 13:36:35,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:35,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:35,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:35,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:36:35,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:35,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash -680835100, now seen corresponding path program 1 times [2023-12-21 13:36:35,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658465339] [2023-12-21 13:36:35,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:35,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:35,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658465339] [2023-12-21 13:36:35,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658465339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:35,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:35,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161097908] [2023-12-21 13:36:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:35,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:35,800 INFO L87 Difference]: Start difference. First operand 1168 states and 1796 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:36,030 INFO L93 Difference]: Finished difference Result 3076 states and 4783 transitions. [2023-12-21 13:36:36,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:36,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 13:36:36,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:36,036 INFO L225 Difference]: With dead ends: 3076 [2023-12-21 13:36:36,036 INFO L226 Difference]: Without dead ends: 1950 [2023-12-21 13:36:36,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:36,042 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1233 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:36,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 288 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:36:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2023-12-21 13:36:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1948. [2023-12-21 13:36:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1947 states have (on average 1.546995377503852) internal successors, (3012), 1947 states have internal predecessors, (3012), 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) [2023-12-21 13:36:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 3012 transitions. [2023-12-21 13:36:36,075 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 3012 transitions. Word has length 82 [2023-12-21 13:36:36,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:36,078 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 3012 transitions. [2023-12-21 13:36:36,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 3012 transitions. [2023-12-21 13:36:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:36,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:36,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:36,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:36:36,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:36,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:36,084 INFO L85 PathProgramCache]: Analyzing trace with hash -107615691, now seen corresponding path program 1 times [2023-12-21 13:36:36,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:36,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275834392] [2023-12-21 13:36:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:36,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:36,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:36,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275834392] [2023-12-21 13:36:36,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275834392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:36,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:36,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:36,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222431969] [2023-12-21 13:36:36,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:36,193 INFO L87 Difference]: Start difference. First operand 1948 states and 3012 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:36,366 INFO L93 Difference]: Finished difference Result 5452 states and 8490 transitions. [2023-12-21 13:36:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:36,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 13:36:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:36,376 INFO L225 Difference]: With dead ends: 5452 [2023-12-21 13:36:36,376 INFO L226 Difference]: Without dead ends: 3562 [2023-12-21 13:36:36,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:36,383 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1191 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:36,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 292 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2023-12-21 13:36:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3560. [2023-12-21 13:36:36,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3559 states have (on average 1.548468670974993) internal successors, (5511), 3559 states have internal predecessors, (5511), 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) [2023-12-21 13:36:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 5511 transitions. [2023-12-21 13:36:36,436 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 5511 transitions. Word has length 82 [2023-12-21 13:36:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:36,437 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 5511 transitions. [2023-12-21 13:36:36,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 5511 transitions. [2023-12-21 13:36:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:36,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:36,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:36,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:36:36,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:36,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 565371462, now seen corresponding path program 1 times [2023-12-21 13:36:36,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:36,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418299897] [2023-12-21 13:36:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:36,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:36,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:36,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418299897] [2023-12-21 13:36:36,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418299897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:36,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:36,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767045232] [2023-12-21 13:36:36,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:36,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:36,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:36,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:36,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:36,525 INFO L87 Difference]: Start difference. First operand 3560 states and 5511 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:36,730 INFO L93 Difference]: Finished difference Result 10109 states and 15708 transitions. [2023-12-21 13:36:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:36,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 13:36:36,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:36,749 INFO L225 Difference]: With dead ends: 10109 [2023-12-21 13:36:36,750 INFO L226 Difference]: Without dead ends: 6630 [2023-12-21 13:36:36,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:36,757 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1153 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:36,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 294 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2023-12-21 13:36:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6628. [2023-12-21 13:36:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6628 states, 6627 states have (on average 1.544741210200694) internal successors, (10237), 6627 states have internal predecessors, (10237), 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) [2023-12-21 13:36:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6628 states to 6628 states and 10237 transitions. [2023-12-21 13:36:36,864 INFO L78 Accepts]: Start accepts. Automaton has 6628 states and 10237 transitions. Word has length 82 [2023-12-21 13:36:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:36,865 INFO L495 AbstractCegarLoop]: Abstraction has 6628 states and 10237 transitions. [2023-12-21 13:36:36,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6628 states and 10237 transitions. [2023-12-21 13:36:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:36,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:36,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:36,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:36:36,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:36,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:36,869 INFO L85 PathProgramCache]: Analyzing trace with hash -563630057, now seen corresponding path program 1 times [2023-12-21 13:36:36,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:36,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917777992] [2023-12-21 13:36:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:36,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917777992] [2023-12-21 13:36:36,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917777992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:36,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:36,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:36,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281131416] [2023-12-21 13:36:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:36,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:36,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:36,959 INFO L87 Difference]: Start difference. First operand 6628 states and 10237 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:37,167 INFO L93 Difference]: Finished difference Result 19042 states and 29466 transitions. [2023-12-21 13:36:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 13:36:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:37,213 INFO L225 Difference]: With dead ends: 19042 [2023-12-21 13:36:37,213 INFO L226 Difference]: Without dead ends: 12525 [2023-12-21 13:36:37,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:37,224 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1115 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:37,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 296 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12525 states. [2023-12-21 13:36:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12525 to 12523. [2023-12-21 13:36:37,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12523 states, 12522 states have (on average 1.5389714103178407) internal successors, (19271), 12522 states have internal predecessors, (19271), 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) [2023-12-21 13:36:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 19271 transitions. [2023-12-21 13:36:37,473 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 19271 transitions. Word has length 82 [2023-12-21 13:36:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:37,473 INFO L495 AbstractCegarLoop]: Abstraction has 12523 states and 19271 transitions. [2023-12-21 13:36:37,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 19271 transitions. [2023-12-21 13:36:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:36:37,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:37,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:36:37,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:36:37,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:37,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1335241816, now seen corresponding path program 1 times [2023-12-21 13:36:37,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925565758] [2023-12-21 13:36:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:37,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:37,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:37,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925565758] [2023-12-21 13:36:37,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925565758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:37,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545798937] [2023-12-21 13:36:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:37,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:37,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:37,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:37,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:37,550 INFO L87 Difference]: Start difference. First operand 12523 states and 19271 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:37,867 INFO L93 Difference]: Finished difference Result 36615 states and 56453 transitions. [2023-12-21 13:36:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:36:37,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-21 13:36:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:37,908 INFO L225 Difference]: With dead ends: 36615 [2023-12-21 13:36:37,908 INFO L226 Difference]: Without dead ends: 24237 [2023-12-21 13:36:37,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:37,928 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1101 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:37,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 305 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:36:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24237 states. [2023-12-21 13:36:38,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24237 to 24235. [2023-12-21 13:36:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24235 states, 24234 states have (on average 1.5354460675084591) internal successors, (37210), 24234 states have internal predecessors, (37210), 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) [2023-12-21 13:36:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24235 states to 24235 states and 37210 transitions. [2023-12-21 13:36:38,304 INFO L78 Accepts]: Start accepts. Automaton has 24235 states and 37210 transitions. Word has length 82 [2023-12-21 13:36:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:38,305 INFO L495 AbstractCegarLoop]: Abstraction has 24235 states and 37210 transitions. [2023-12-21 13:36:38,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:36:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand 24235 states and 37210 transitions. [2023-12-21 13:36:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 13:36:38,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:38,309 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] [2023-12-21 13:36:38,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:36:38,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:38,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -375543261, now seen corresponding path program 1 times [2023-12-21 13:36:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574425557] [2023-12-21 13:36:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:38,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:38,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574425557] [2023-12-21 13:36:38,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574425557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:38,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:38,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:36:38,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624461317] [2023-12-21 13:36:38,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:38,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:36:38,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:38,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:36:38,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:36:38,471 INFO L87 Difference]: Start difference. First operand 24235 states and 37210 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2023-12-21 13:36:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:38,743 INFO L93 Difference]: Finished difference Result 48237 states and 73819 transitions. [2023-12-21 13:36:38,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:36:38,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2023-12-21 13:36:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:38,888 INFO L225 Difference]: With dead ends: 48237 [2023-12-21 13:36:38,888 INFO L226 Difference]: Without dead ends: 48235 [2023-12-21 13:36:38,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:36:38,903 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 302 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:38,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1228 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48235 states. [2023-12-21 13:36:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48235 to 24811. [2023-12-21 13:36:39,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24811 states, 24810 states have (on average 1.5230149133413946) internal successors, (37786), 24810 states have internal predecessors, (37786), 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) [2023-12-21 13:36:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24811 states to 24811 states and 37786 transitions. [2023-12-21 13:36:39,452 INFO L78 Accepts]: Start accepts. Automaton has 24811 states and 37786 transitions. Word has length 83 [2023-12-21 13:36:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:39,452 INFO L495 AbstractCegarLoop]: Abstraction has 24811 states and 37786 transitions. [2023-12-21 13:36:39,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2023-12-21 13:36:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 24811 states and 37786 transitions. [2023-12-21 13:36:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:36:39,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:39,458 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] [2023-12-21 13:36:39,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:36:39,459 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:39,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1521514654, now seen corresponding path program 1 times [2023-12-21 13:36:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490453157] [2023-12-21 13:36:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:39,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490453157] [2023-12-21 13:36:39,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490453157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:39,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:39,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:36:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351867063] [2023-12-21 13:36:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:39,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:36:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:36:39,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:36:39,750 INFO L87 Difference]: Start difference. First operand 24811 states and 37786 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-12-21 13:36:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:40,972 INFO L93 Difference]: Finished difference Result 124499 states and 187950 transitions. [2023-12-21 13:36:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:36:40,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 84 [2023-12-21 13:36:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:41,203 INFO L225 Difference]: With dead ends: 124499 [2023-12-21 13:36:41,204 INFO L226 Difference]: Without dead ends: 100232 [2023-12-21 13:36:41,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:36:41,246 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2106 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:41,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 1450 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:36:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100232 states. [2023-12-21 13:36:42,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100232 to 24909. [2023-12-21 13:36:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24909 states, 24908 states have (on average 1.521519190621487) internal successors, (37898), 24908 states have internal predecessors, (37898), 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) [2023-12-21 13:36:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24909 states to 24909 states and 37898 transitions. [2023-12-21 13:36:42,153 INFO L78 Accepts]: Start accepts. Automaton has 24909 states and 37898 transitions. Word has length 84 [2023-12-21 13:36:42,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:42,153 INFO L495 AbstractCegarLoop]: Abstraction has 24909 states and 37898 transitions. [2023-12-21 13:36:42,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-12-21 13:36:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 24909 states and 37898 transitions. [2023-12-21 13:36:42,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:36:42,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:42,160 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] [2023-12-21 13:36:42,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:36:42,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:42,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash 462552190, now seen corresponding path program 1 times [2023-12-21 13:36:42,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:42,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563490003] [2023-12-21 13:36:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:42,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:42,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563490003] [2023-12-21 13:36:42,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563490003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:42,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:42,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:36:42,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740707655] [2023-12-21 13:36:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:42,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:36:42,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:42,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:36:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:36:42,308 INFO L87 Difference]: Start difference. First operand 24909 states and 37898 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2023-12-21 13:36:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:42,540 INFO L93 Difference]: Finished difference Result 69793 states and 105972 transitions. [2023-12-21 13:36:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:36:42,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2023-12-21 13:36:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:42,600 INFO L225 Difference]: With dead ends: 69793 [2023-12-21 13:36:42,600 INFO L226 Difference]: Without dead ends: 45791 [2023-12-21 13:36:42,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:36:42,630 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 204 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:42,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 818 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45791 states. [2023-12-21 13:36:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45791 to 45789. [2023-12-21 13:36:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45789 states, 45788 states have (on average 1.5089106316065344) internal successors, (69090), 45788 states have internal predecessors, (69090), 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) [2023-12-21 13:36:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45789 states to 45789 states and 69090 transitions. [2023-12-21 13:36:43,220 INFO L78 Accepts]: Start accepts. Automaton has 45789 states and 69090 transitions. Word has length 84 [2023-12-21 13:36:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:43,220 INFO L495 AbstractCegarLoop]: Abstraction has 45789 states and 69090 transitions. [2023-12-21 13:36:43,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2023-12-21 13:36:43,221 INFO L276 IsEmpty]: Start isEmpty. Operand 45789 states and 69090 transitions. [2023-12-21 13:36:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:43,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:43,227 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] [2023-12-21 13:36:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:36:43,227 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:43,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash -887764282, now seen corresponding path program 1 times [2023-12-21 13:36:43,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:43,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564967545] [2023-12-21 13:36:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:43,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:43,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564967545] [2023-12-21 13:36:43,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564967545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:43,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:43,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:36:43,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485322607] [2023-12-21 13:36:43,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:43,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:36:43,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:43,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:36:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:36:43,277 INFO L87 Difference]: Start difference. First operand 45789 states and 69090 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:43,697 INFO L93 Difference]: Finished difference Result 102917 states and 155195 transitions. [2023-12-21 13:36:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:36:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:43,783 INFO L225 Difference]: With dead ends: 102917 [2023-12-21 13:36:43,783 INFO L226 Difference]: Without dead ends: 61987 [2023-12-21 13:36:43,825 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 [2023-12-21 13:36:43,825 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 201 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:43,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 721 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61987 states. [2023-12-21 13:36:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61987 to 61565. [2023-12-21 13:36:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61565 states, 61564 states have (on average 1.4906276395295952) internal successors, (91769), 61564 states have internal predecessors, (91769), 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) [2023-12-21 13:36:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61565 states to 61565 states and 91769 transitions. [2023-12-21 13:36:44,659 INFO L78 Accepts]: Start accepts. Automaton has 61565 states and 91769 transitions. Word has length 85 [2023-12-21 13:36:44,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:44,659 INFO L495 AbstractCegarLoop]: Abstraction has 61565 states and 91769 transitions. [2023-12-21 13:36:44,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 61565 states and 91769 transitions. [2023-12-21 13:36:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:44,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:44,666 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] [2023-12-21 13:36:44,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:36:44,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:44,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash 644137702, now seen corresponding path program 1 times [2023-12-21 13:36:44,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:44,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164885694] [2023-12-21 13:36:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:44,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:44,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:44,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164885694] [2023-12-21 13:36:44,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164885694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:44,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:44,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:44,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2672716] [2023-12-21 13:36:44,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:44,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:44,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:44,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:44,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:44,951 INFO L87 Difference]: Start difference. First operand 61565 states and 91769 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:36:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:45,563 INFO L93 Difference]: Finished difference Result 152231 states and 227925 transitions. [2023-12-21 13:36:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:45,739 INFO L225 Difference]: With dead ends: 152231 [2023-12-21 13:36:45,740 INFO L226 Difference]: Without dead ends: 127141 [2023-12-21 13:36:45,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:36:45,765 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 1654 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:45,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 1941 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:36:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127141 states. [2023-12-21 13:36:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127141 to 85866. [2023-12-21 13:36:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85866 states, 85865 states have (on average 1.4904326559133523) internal successors, (127976), 85865 states have internal predecessors, (127976), 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) [2023-12-21 13:36:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85866 states to 85866 states and 127976 transitions. [2023-12-21 13:36:47,036 INFO L78 Accepts]: Start accepts. Automaton has 85866 states and 127976 transitions. Word has length 85 [2023-12-21 13:36:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:47,036 INFO L495 AbstractCegarLoop]: Abstraction has 85866 states and 127976 transitions. [2023-12-21 13:36:47,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:36:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 85866 states and 127976 transitions. [2023-12-21 13:36:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:47,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:47,044 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] [2023-12-21 13:36:47,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:36:47,044 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:47,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2146135911, now seen corresponding path program 1 times [2023-12-21 13:36:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:47,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758504362] [2023-12-21 13:36:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:47,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758504362] [2023-12-21 13:36:47,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758504362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:47,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:47,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:36:47,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165818044] [2023-12-21 13:36:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:47,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:36:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:47,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:36:47,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:36:47,087 INFO L87 Difference]: Start difference. First operand 85866 states and 127976 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:47,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:47,659 INFO L93 Difference]: Finished difference Result 173961 states and 258675 transitions. [2023-12-21 13:36:47,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:36:47,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:47,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:47,806 INFO L225 Difference]: With dead ends: 173961 [2023-12-21 13:36:47,806 INFO L226 Difference]: Without dead ends: 105949 [2023-12-21 13:36:47,858 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 [2023-12-21 13:36:47,859 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 191 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:47,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105949 states. [2023-12-21 13:36:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105949 to 105180. [2023-12-21 13:36:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105180 states, 105179 states have (on average 1.468049705739739) internal successors, (154408), 105179 states have internal predecessors, (154408), 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) [2023-12-21 13:36:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105180 states to 105180 states and 154408 transitions. [2023-12-21 13:36:49,308 INFO L78 Accepts]: Start accepts. Automaton has 105180 states and 154408 transitions. Word has length 85 [2023-12-21 13:36:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:49,308 INFO L495 AbstractCegarLoop]: Abstraction has 105180 states and 154408 transitions. [2023-12-21 13:36:49,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 105180 states and 154408 transitions. [2023-12-21 13:36:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:49,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:49,317 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] [2023-12-21 13:36:49,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:36:49,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:49,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1390110714, now seen corresponding path program 1 times [2023-12-21 13:36:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563099214] [2023-12-21 13:36:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:49,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:49,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563099214] [2023-12-21 13:36:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563099214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:49,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:36:49,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316541545] [2023-12-21 13:36:49,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:49,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:36:49,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:36:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:36:49,361 INFO L87 Difference]: Start difference. First operand 105180 states and 154408 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:50,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:50,007 INFO L93 Difference]: Finished difference Result 187334 states and 274109 transitions. [2023-12-21 13:36:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:36:50,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:50,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:50,176 INFO L225 Difference]: With dead ends: 187334 [2023-12-21 13:36:50,176 INFO L226 Difference]: Without dead ends: 122026 [2023-12-21 13:36:50,234 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 [2023-12-21 13:36:50,235 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:50,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 559 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:50,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122026 states. [2023-12-21 13:36:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122026 to 120937. [2023-12-21 13:36:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120937 states, 120936 states have (on average 1.4426308129919958) internal successors, (174466), 120936 states have internal predecessors, (174466), 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) [2023-12-21 13:36:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120937 states to 120937 states and 174466 transitions. [2023-12-21 13:36:51,911 INFO L78 Accepts]: Start accepts. Automaton has 120937 states and 174466 transitions. Word has length 85 [2023-12-21 13:36:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:51,911 INFO L495 AbstractCegarLoop]: Abstraction has 120937 states and 174466 transitions. [2023-12-21 13:36:51,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 120937 states and 174466 transitions. [2023-12-21 13:36:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:51,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:51,922 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] [2023-12-21 13:36:51,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:36:51,922 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:51,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1323205915, now seen corresponding path program 1 times [2023-12-21 13:36:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:51,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765682412] [2023-12-21 13:36:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:52,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:52,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765682412] [2023-12-21 13:36:52,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765682412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:52,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:52,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:36:52,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555826559] [2023-12-21 13:36:52,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:52,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:36:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:36:52,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:36:52,285 INFO L87 Difference]: Start difference. First operand 120937 states and 174466 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:52,648 INFO L93 Difference]: Finished difference Result 172432 states and 247613 transitions. [2023-12-21 13:36:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:36:52,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:52,815 INFO L225 Difference]: With dead ends: 172432 [2023-12-21 13:36:52,815 INFO L226 Difference]: Without dead ends: 124694 [2023-12-21 13:36:52,877 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 [2023-12-21 13:36:52,878 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 171 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:52,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 560 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:52,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124694 states. [2023-12-21 13:36:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124694 to 110584. [2023-12-21 13:36:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110584 states, 110583 states have (on average 1.4202454265122126) internal successors, (157055), 110583 states have internal predecessors, (157055), 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) [2023-12-21 13:36:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110584 states to 110584 states and 157055 transitions. [2023-12-21 13:36:54,556 INFO L78 Accepts]: Start accepts. Automaton has 110584 states and 157055 transitions. Word has length 85 [2023-12-21 13:36:54,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:54,557 INFO L495 AbstractCegarLoop]: Abstraction has 110584 states and 157055 transitions. [2023-12-21 13:36:54,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 110584 states and 157055 transitions. [2023-12-21 13:36:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:54,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:54,568 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] [2023-12-21 13:36:54,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:36:54,568 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:54,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 450218119, now seen corresponding path program 1 times [2023-12-21 13:36:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:54,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927425207] [2023-12-21 13:36:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:54,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:54,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:54,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927425207] [2023-12-21 13:36:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927425207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:54,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:54,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:36:54,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134332292] [2023-12-21 13:36:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:54,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:36:54,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:36:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:36:54,611 INFO L87 Difference]: Start difference. First operand 110584 states and 157055 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:55,508 INFO L93 Difference]: Finished difference Result 254127 states and 360091 transitions. [2023-12-21 13:36:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:36:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:55,717 INFO L225 Difference]: With dead ends: 254127 [2023-12-21 13:36:55,717 INFO L226 Difference]: Without dead ends: 149121 [2023-12-21 13:36:56,118 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 [2023-12-21 13:36:56,119 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 207 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:56,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 575 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149121 states. [2023-12-21 13:36:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149121 to 148718. [2023-12-21 13:36:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148718 states, 148717 states have (on average 1.3977958135250173) internal successors, (207876), 148717 states have internal predecessors, (207876), 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) [2023-12-21 13:36:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148718 states to 148718 states and 207876 transitions. [2023-12-21 13:36:57,936 INFO L78 Accepts]: Start accepts. Automaton has 148718 states and 207876 transitions. Word has length 85 [2023-12-21 13:36:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:36:57,936 INFO L495 AbstractCegarLoop]: Abstraction has 148718 states and 207876 transitions. [2023-12-21 13:36:57,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2023-12-21 13:36:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 148718 states and 207876 transitions. [2023-12-21 13:36:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:36:57,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:36:57,947 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] [2023-12-21 13:36:57,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:36:57,947 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:36:57,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:36:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 478289799, now seen corresponding path program 1 times [2023-12-21 13:36:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:36:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596661107] [2023-12-21 13:36:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:36:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:36:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:36:58,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:36:58,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:36:58,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596661107] [2023-12-21 13:36:58,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596661107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:36:58,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:36:58,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:36:58,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203756406] [2023-12-21 13:36:58,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:36:58,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:36:58,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:36:58,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:36:58,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:36:58,031 INFO L87 Difference]: Start difference. First operand 148718 states and 207876 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:36:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:36:58,950 INFO L93 Difference]: Finished difference Result 290858 states and 409112 transitions. [2023-12-21 13:36:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:36:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-21 13:36:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:36:59,317 INFO L225 Difference]: With dead ends: 290858 [2023-12-21 13:36:59,318 INFO L226 Difference]: Without dead ends: 253155 [2023-12-21 13:36:59,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:36:59,641 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1726 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:36:59,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 1803 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:36:59,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253155 states. [2023-12-21 13:37:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253155 to 169953. [2023-12-21 13:37:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169953 states, 169952 states have (on average 1.3997246281302955) internal successors, (237886), 169952 states have internal predecessors, (237886), 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) [2023-12-21 13:37:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169953 states to 169953 states and 237886 transitions. [2023-12-21 13:37:02,239 INFO L78 Accepts]: Start accepts. Automaton has 169953 states and 237886 transitions. Word has length 85 [2023-12-21 13:37:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:02,239 INFO L495 AbstractCegarLoop]: Abstraction has 169953 states and 237886 transitions. [2023-12-21 13:37:02,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:37:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 169953 states and 237886 transitions. [2023-12-21 13:37:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:02,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:02,251 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] [2023-12-21 13:37:02,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:37:02,252 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:02,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:02,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1379291066, now seen corresponding path program 1 times [2023-12-21 13:37:02,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:02,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668870115] [2023-12-21 13:37:02,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:02,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:02,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:02,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668870115] [2023-12-21 13:37:02,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668870115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:02,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:02,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:02,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212609377] [2023-12-21 13:37:02,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:02,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:02,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:02,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:02,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:02,707 INFO L87 Difference]: Start difference. First operand 169953 states and 237886 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:37:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:03,755 INFO L93 Difference]: Finished difference Result 301917 states and 424122 transitions. [2023-12-21 13:37:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:03,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-21 13:37:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:04,224 INFO L225 Difference]: With dead ends: 301917 [2023-12-21 13:37:04,224 INFO L226 Difference]: Without dead ends: 277354 [2023-12-21 13:37:04,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:37:04,294 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 1836 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:04,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 1888 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:37:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277354 states. [2023-12-21 13:37:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277354 to 182344. [2023-12-21 13:37:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182344 states, 182343 states have (on average 1.4011176738344768) internal successors, (255484), 182343 states have internal predecessors, (255484), 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) [2023-12-21 13:37:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182344 states to 182344 states and 255484 transitions. [2023-12-21 13:37:07,594 INFO L78 Accepts]: Start accepts. Automaton has 182344 states and 255484 transitions. Word has length 85 [2023-12-21 13:37:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:07,594 INFO L495 AbstractCegarLoop]: Abstraction has 182344 states and 255484 transitions. [2023-12-21 13:37:07,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:37:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 182344 states and 255484 transitions. [2023-12-21 13:37:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:37:07,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:07,620 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] [2023-12-21 13:37:07,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:37:07,621 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:07,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2093367941, now seen corresponding path program 1 times [2023-12-21 13:37:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577393037] [2023-12-21 13:37:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:07,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:07,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577393037] [2023-12-21 13:37:07,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577393037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:07,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:07,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:07,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305557261] [2023-12-21 13:37:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:07,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:07,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:07,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:07,739 INFO L87 Difference]: Start difference. First operand 182344 states and 255484 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:37:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:09,180 INFO L93 Difference]: Finished difference Result 299172 states and 419892 transitions. [2023-12-21 13:37:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:09,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-21 13:37:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:09,819 INFO L225 Difference]: With dead ends: 299172 [2023-12-21 13:37:09,820 INFO L226 Difference]: Without dead ends: 288181 [2023-12-21 13:37:09,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:37:09,900 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1668 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:09,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 2115 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:37:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288181 states. [2023-12-21 13:37:12,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288181 to 193171. [2023-12-21 13:37:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193171 states, 193170 states have (on average 1.4011388932028783) internal successors, (270658), 193170 states have internal predecessors, (270658), 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) [2023-12-21 13:37:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193171 states to 193171 states and 270658 transitions. [2023-12-21 13:37:12,982 INFO L78 Accepts]: Start accepts. Automaton has 193171 states and 270658 transitions. Word has length 85 [2023-12-21 13:37:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:12,983 INFO L495 AbstractCegarLoop]: Abstraction has 193171 states and 270658 transitions. [2023-12-21 13:37:12,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2023-12-21 13:37:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 193171 states and 270658 transitions. [2023-12-21 13:37:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 13:37:12,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:12,993 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] [2023-12-21 13:37:12,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:37:12,993 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:12,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash 67402477, now seen corresponding path program 1 times [2023-12-21 13:37:12,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:12,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362172367] [2023-12-21 13:37:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:12,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:13,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:13,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362172367] [2023-12-21 13:37:13,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362172367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:13,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:13,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:37:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232136030] [2023-12-21 13:37:13,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:13,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:13,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:13,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:13,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:13,107 INFO L87 Difference]: Start difference. First operand 193171 states and 270658 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2023-12-21 13:37:14,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:14,315 INFO L93 Difference]: Finished difference Result 370406 states and 520423 transitions. [2023-12-21 13:37:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 13:37:14,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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 86 [2023-12-21 13:37:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:15,153 INFO L225 Difference]: With dead ends: 370406 [2023-12-21 13:37:15,153 INFO L226 Difference]: Without dead ends: 326665 [2023-12-21 13:37:15,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:37:15,205 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1638 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:15,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 2274 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:37:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326665 states. [2023-12-21 13:37:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326665 to 211549. [2023-12-21 13:37:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211549 states, 211548 states have (on average 1.401341539508764) internal successors, (296451), 211548 states have internal predecessors, (296451), 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) [2023-12-21 13:37:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211549 states to 211549 states and 296451 transitions. [2023-12-21 13:37:18,547 INFO L78 Accepts]: Start accepts. Automaton has 211549 states and 296451 transitions. Word has length 86 [2023-12-21 13:37:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:18,547 INFO L495 AbstractCegarLoop]: Abstraction has 211549 states and 296451 transitions. [2023-12-21 13:37:18,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2023-12-21 13:37:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 211549 states and 296451 transitions. [2023-12-21 13:37:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:37:18,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:18,564 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] [2023-12-21 13:37:18,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:37:18,564 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:18,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1526305416, now seen corresponding path program 1 times [2023-12-21 13:37:18,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:18,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850127171] [2023-12-21 13:37:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:18,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:18,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850127171] [2023-12-21 13:37:18,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850127171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:18,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:18,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:37:18,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037207001] [2023-12-21 13:37:18,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:18,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:18,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:18,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:18,640 INFO L87 Difference]: Start difference. First operand 211549 states and 296451 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:37:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:21,941 INFO L93 Difference]: Finished difference Result 893454 states and 1243844 transitions. [2023-12-21 13:37:21,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:37:21,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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 [2023-12-21 13:37:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:23,496 INFO L225 Difference]: With dead ends: 893454 [2023-12-21 13:37:23,496 INFO L226 Difference]: Without dead ends: 761341 [2023-12-21 13:37:23,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:37:23,625 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 2985 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:23,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 485 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:37:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761341 states. [2023-12-21 13:37:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761341 to 211629. [2023-12-21 13:37:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211629 states, 211628 states have (on average 1.4012654280151964) internal successors, (296547), 211628 states have internal predecessors, (296547), 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) [2023-12-21 13:37:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211629 states to 211629 states and 296547 transitions. [2023-12-21 13:37:29,716 INFO L78 Accepts]: Start accepts. Automaton has 211629 states and 296547 transitions. Word has length 90 [2023-12-21 13:37:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:29,716 INFO L495 AbstractCegarLoop]: Abstraction has 211629 states and 296547 transitions. [2023-12-21 13:37:29,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:37:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 211629 states and 296547 transitions. [2023-12-21 13:37:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:37:29,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:29,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:37:29,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:37:29,736 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:29,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash 430124042, now seen corresponding path program 1 times [2023-12-21 13:37:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:29,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905729684] [2023-12-21 13:37:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:29,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:29,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905729684] [2023-12-21 13:37:29,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905729684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:29,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:29,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:37:29,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210629676] [2023-12-21 13:37:29,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:29,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:29,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:29,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:29,811 INFO L87 Difference]: Start difference. First operand 211629 states and 296547 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:37:34,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:34,215 INFO L93 Difference]: Finished difference Result 1058720 states and 1478546 transitions. [2023-12-21 13:37:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:37:34,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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 [2023-12-21 13:37:34,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:36,677 INFO L225 Difference]: With dead ends: 1058720 [2023-12-21 13:37:36,677 INFO L226 Difference]: Without dead ends: 942700 [2023-12-21 13:37:36,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:37:36,844 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 3617 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:36,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3617 Valid, 688 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:37:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942700 states. [2023-12-21 13:37:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942700 to 211865. [2023-12-21 13:37:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211865 states, 211864 states have (on average 1.401078050069856) internal successors, (296838), 211864 states have internal predecessors, (296838), 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) [2023-12-21 13:37:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211865 states to 211865 states and 296838 transitions. [2023-12-21 13:37:44,468 INFO L78 Accepts]: Start accepts. Automaton has 211865 states and 296838 transitions. Word has length 90 [2023-12-21 13:37:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:37:44,468 INFO L495 AbstractCegarLoop]: Abstraction has 211865 states and 296838 transitions. [2023-12-21 13:37:44,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:37:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 211865 states and 296838 transitions. [2023-12-21 13:37:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:37:44,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:37:44,484 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] [2023-12-21 13:37:44,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:37:44,485 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:37:44,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:37:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1959111608, now seen corresponding path program 1 times [2023-12-21 13:37:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:37:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636815011] [2023-12-21 13:37:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:37:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:37:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:37:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:37:44,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:37:44,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636815011] [2023-12-21 13:37:44,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636815011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:37:44,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:37:44,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:37:44,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959194027] [2023-12-21 13:37:44,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:37:44,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:37:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:37:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:37:44,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:37:44,558 INFO L87 Difference]: Start difference. First operand 211865 states and 296838 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:37:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:37:49,399 INFO L93 Difference]: Finished difference Result 1317904 states and 1835966 transitions. [2023-12-21 13:37:49,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:37:49,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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 [2023-12-21 13:37:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:37:52,183 INFO L225 Difference]: With dead ends: 1317904 [2023-12-21 13:37:52,184 INFO L226 Difference]: Without dead ends: 1216611 [2023-12-21 13:37:52,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:37:52,441 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 3954 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3954 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:37:52,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3954 Valid, 573 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:37:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216611 states. [2023-12-21 13:38:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216611 to 212249. [2023-12-21 13:38:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212249 states, 212248 states have (on average 1.4007952960687498) internal successors, (297316), 212248 states have internal predecessors, (297316), 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) [2023-12-21 13:38:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212249 states to 212249 states and 297316 transitions. [2023-12-21 13:38:01,987 INFO L78 Accepts]: Start accepts. Automaton has 212249 states and 297316 transitions. Word has length 90 [2023-12-21 13:38:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:01,987 INFO L495 AbstractCegarLoop]: Abstraction has 212249 states and 297316 transitions. [2023-12-21 13:38:01,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:38:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 212249 states and 297316 transitions. [2023-12-21 13:38:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:38:02,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:02,003 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] [2023-12-21 13:38:02,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:38:02,003 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:02,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 906262558, now seen corresponding path program 1 times [2023-12-21 13:38:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044999003] [2023-12-21 13:38:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:02,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:02,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044999003] [2023-12-21 13:38:02,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044999003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:02,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:02,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:38:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713310278] [2023-12-21 13:38:02,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:02,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:38:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:38:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:38:02,073 INFO L87 Difference]: Start difference. First operand 212249 states and 297316 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:38:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:06,329 INFO L93 Difference]: Finished difference Result 1116894 states and 1550093 transitions. [2023-12-21 13:38:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:06,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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 [2023-12-21 13:38:06,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:08,735 INFO L225 Difference]: With dead ends: 1116894 [2023-12-21 13:38:08,735 INFO L226 Difference]: Without dead ends: 1044659 [2023-12-21 13:38:09,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:38:09,185 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 3585 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:09,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 557 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:38:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044659 states. [2023-12-21 13:38:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044659 to 213001. [2023-12-21 13:38:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213001 states, 213000 states have (on average 1.400417840375587) internal successors, (298289), 213000 states have internal predecessors, (298289), 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) [2023-12-21 13:38:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213001 states to 213001 states and 298289 transitions. [2023-12-21 13:38:17,502 INFO L78 Accepts]: Start accepts. Automaton has 213001 states and 298289 transitions. Word has length 90 [2023-12-21 13:38:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:17,502 INFO L495 AbstractCegarLoop]: Abstraction has 213001 states and 298289 transitions. [2023-12-21 13:38:17,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 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) [2023-12-21 13:38:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 213001 states and 298289 transitions. [2023-12-21 13:38:17,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 13:38:17,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:17,519 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] [2023-12-21 13:38:17,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:38:17,519 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:17,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1110061871, now seen corresponding path program 1 times [2023-12-21 13:38:17,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:17,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452642365] [2023-12-21 13:38:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:17,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:17,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452642365] [2023-12-21 13:38:17,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452642365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:17,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:17,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:38:17,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5958948] [2023-12-21 13:38:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:17,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:38:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:17,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:38:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:38:17,597 INFO L87 Difference]: Start difference. First operand 213001 states and 298289 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 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) [2023-12-21 13:38:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:20,305 INFO L93 Difference]: Finished difference Result 740200 states and 1026062 transitions. [2023-12-21 13:38:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:38:20,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 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 [2023-12-21 13:38:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:21,913 INFO L225 Difference]: With dead ends: 740200 [2023-12-21 13:38:21,913 INFO L226 Difference]: Without dead ends: 682328 [2023-12-21 13:38:22,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:38:22,029 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 2954 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:22,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 541 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:38:22,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682328 states. [2023-12-21 13:38:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682328 to 284272. [2023-12-21 13:38:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284272 states, 284271 states have (on average 1.39576671556367) internal successors, (396776), 284271 states have internal predecessors, (396776), 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) [2023-12-21 13:38:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284272 states to 284272 states and 396776 transitions. [2023-12-21 13:38:28,264 INFO L78 Accepts]: Start accepts. Automaton has 284272 states and 396776 transitions. Word has length 91 [2023-12-21 13:38:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:28,264 INFO L495 AbstractCegarLoop]: Abstraction has 284272 states and 396776 transitions. [2023-12-21 13:38:28,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 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) [2023-12-21 13:38:28,264 INFO L276 IsEmpty]: Start isEmpty. Operand 284272 states and 396776 transitions. [2023-12-21 13:38:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:38:28,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:28,283 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] [2023-12-21 13:38:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:38:28,283 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:28,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash 657084734, now seen corresponding path program 1 times [2023-12-21 13:38:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:28,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756293844] [2023-12-21 13:38:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:28,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:28,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756293844] [2023-12-21 13:38:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756293844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:28,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:28,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:38:28,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567972338] [2023-12-21 13:38:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:28,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:38:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:38:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:38:28,452 INFO L87 Difference]: Start difference. First operand 284272 states and 396776 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:38:32,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:32,963 INFO L93 Difference]: Finished difference Result 1013398 states and 1406362 transitions. [2023-12-21 13:38:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:38:32,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-12-21 13:38:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:34,469 INFO L225 Difference]: With dead ends: 1013398 [2023-12-21 13:38:34,469 INFO L226 Difference]: Without dead ends: 772676 [2023-12-21 13:38:34,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:38:34,651 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1493 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:34,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1744 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:38:35,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772676 states. [2023-12-21 13:38:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772676 to 284367. [2023-12-21 13:38:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284367 states, 284366 states have (on average 1.3951597589022597) internal successors, (396736), 284366 states have internal predecessors, (396736), 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) [2023-12-21 13:38:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284367 states to 284367 states and 396736 transitions. [2023-12-21 13:38:42,686 INFO L78 Accepts]: Start accepts. Automaton has 284367 states and 396736 transitions. Word has length 92 [2023-12-21 13:38:42,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:42,688 INFO L495 AbstractCegarLoop]: Abstraction has 284367 states and 396736 transitions. [2023-12-21 13:38:42,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:38:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 284367 states and 396736 transitions. [2023-12-21 13:38:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:38:42,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:42,724 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] [2023-12-21 13:38:42,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:38:42,725 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:42,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 432881468, now seen corresponding path program 1 times [2023-12-21 13:38:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:42,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371158579] [2023-12-21 13:38:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:43,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:43,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371158579] [2023-12-21 13:38:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371158579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:38:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825762485] [2023-12-21 13:38:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:43,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:38:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:43,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:38:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:38:43,102 INFO L87 Difference]: Start difference. First operand 284367 states and 396736 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:38:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:38:47,621 INFO L93 Difference]: Finished difference Result 1069697 states and 1484091 transitions. [2023-12-21 13:38:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:38:47,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-12-21 13:38:47,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:38:49,636 INFO L225 Difference]: With dead ends: 1069697 [2023-12-21 13:38:49,636 INFO L226 Difference]: Without dead ends: 799418 [2023-12-21 13:38:49,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:38:49,842 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 2112 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:38:49,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2112 Valid, 1681 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:38:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799418 states. [2023-12-21 13:38:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799418 to 284114. [2023-12-21 13:38:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284114 states, 284113 states have (on average 1.3947302657745333) internal successors, (396261), 284113 states have internal predecessors, (396261), 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) [2023-12-21 13:38:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284114 states to 284114 states and 396261 transitions. [2023-12-21 13:38:57,402 INFO L78 Accepts]: Start accepts. Automaton has 284114 states and 396261 transitions. Word has length 92 [2023-12-21 13:38:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:38:57,402 INFO L495 AbstractCegarLoop]: Abstraction has 284114 states and 396261 transitions. [2023-12-21 13:38:57,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:38:57,402 INFO L276 IsEmpty]: Start isEmpty. Operand 284114 states and 396261 transitions. [2023-12-21 13:38:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:38:57,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:38:57,416 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] [2023-12-21 13:38:57,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:38:57,416 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:38:57,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:38:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1454301860, now seen corresponding path program 1 times [2023-12-21 13:38:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:38:57,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7542409] [2023-12-21 13:38:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:38:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:38:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:38:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:38:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:38:57,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7542409] [2023-12-21 13:38:57,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7542409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:38:57,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:38:57,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:38:57,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694097945] [2023-12-21 13:38:57,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:38:57,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:38:57,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:38:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:38:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:38:57,587 INFO L87 Difference]: Start difference. First operand 284114 states and 396261 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:39:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:02,409 INFO L93 Difference]: Finished difference Result 1120834 states and 1548002 transitions. [2023-12-21 13:39:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:39:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-12-21 13:39:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:04,604 INFO L225 Difference]: With dead ends: 1120834 [2023-12-21 13:39:04,605 INFO L226 Difference]: Without dead ends: 931763 [2023-12-21 13:39:04,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:39:04,915 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 1696 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:04,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 2543 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:39:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931763 states. [2023-12-21 13:39:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931763 to 284707. [2023-12-21 13:39:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284707 states, 284706 states have (on average 1.394357688281947) internal successors, (396982), 284706 states have internal predecessors, (396982), 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) [2023-12-21 13:39:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284707 states to 284707 states and 396982 transitions. [2023-12-21 13:39:12,882 INFO L78 Accepts]: Start accepts. Automaton has 284707 states and 396982 transitions. Word has length 92 [2023-12-21 13:39:12,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:12,882 INFO L495 AbstractCegarLoop]: Abstraction has 284707 states and 396982 transitions. [2023-12-21 13:39:12,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:39:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 284707 states and 396982 transitions. [2023-12-21 13:39:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:39:12,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:12,897 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] [2023-12-21 13:39:12,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:39:12,897 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:12,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1304702226, now seen corresponding path program 1 times [2023-12-21 13:39:12,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:12,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333504846] [2023-12-21 13:39:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:12,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:13,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:13,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333504846] [2023-12-21 13:39:13,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333504846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:13,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:39:13,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113264788] [2023-12-21 13:39:13,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:13,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:39:13,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:13,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:39:13,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:39:13,101 INFO L87 Difference]: Start difference. First operand 284707 states and 396982 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:39:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:16,408 INFO L93 Difference]: Finished difference Result 695739 states and 966200 transitions. [2023-12-21 13:39:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:39:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-12-21 13:39:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:17,368 INFO L225 Difference]: With dead ends: 695739 [2023-12-21 13:39:17,369 INFO L226 Difference]: Without dead ends: 589286 [2023-12-21 13:39:17,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:39:17,469 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1894 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:17,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 1705 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:39:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589286 states. [2023-12-21 13:39:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589286 to 283926. [2023-12-21 13:39:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283926 states, 283925 states have (on average 1.3945055912652988) internal successors, (395935), 283925 states have internal predecessors, (395935), 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) [2023-12-21 13:39:23,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283926 states to 283926 states and 395935 transitions. [2023-12-21 13:39:23,761 INFO L78 Accepts]: Start accepts. Automaton has 283926 states and 395935 transitions. Word has length 92 [2023-12-21 13:39:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:23,761 INFO L495 AbstractCegarLoop]: Abstraction has 283926 states and 395935 transitions. [2023-12-21 13:39:23,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-12-21 13:39:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 283926 states and 395935 transitions. [2023-12-21 13:39:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:39:23,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:23,774 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] [2023-12-21 13:39:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:39:23,775 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:23,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1199867936, now seen corresponding path program 1 times [2023-12-21 13:39:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:23,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643473921] [2023-12-21 13:39:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:23,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:24,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643473921] [2023-12-21 13:39:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643473921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:39:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595916795] [2023-12-21 13:39:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:24,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:39:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:39:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:39:24,216 INFO L87 Difference]: Start difference. First operand 283926 states and 395935 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 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) [2023-12-21 13:39:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:29,627 INFO L93 Difference]: Finished difference Result 1426160 states and 1989882 transitions. [2023-12-21 13:39:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:39:29,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 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 [2023-12-21 13:39:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:33,512 INFO L225 Difference]: With dead ends: 1426160 [2023-12-21 13:39:33,513 INFO L226 Difference]: Without dead ends: 1308403 [2023-12-21 13:39:33,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:39:33,992 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 2866 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 3891 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:33,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 3891 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:39:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308403 states. [2023-12-21 13:39:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308403 to 283661. [2023-12-21 13:39:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283661 states, 283660 states have (on average 1.3946344214905169) internal successors, (395602), 283660 states have internal predecessors, (395602), 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) [2023-12-21 13:39:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283661 states to 283661 states and 395602 transitions. [2023-12-21 13:39:45,422 INFO L78 Accepts]: Start accepts. Automaton has 283661 states and 395602 transitions. Word has length 93 [2023-12-21 13:39:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:39:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 283661 states and 395602 transitions. [2023-12-21 13:39:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 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) [2023-12-21 13:39:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 283661 states and 395602 transitions. [2023-12-21 13:39:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:39:45,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:39:45,436 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] [2023-12-21 13:39:45,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:39:45,436 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:39:45,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:39:45,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1266287397, now seen corresponding path program 1 times [2023-12-21 13:39:45,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:39:45,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883867872] [2023-12-21 13:39:45,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:39:45,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:39:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:39:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:39:45,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:39:45,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883867872] [2023-12-21 13:39:45,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883867872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:39:45,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:39:45,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:39:45,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688284525] [2023-12-21 13:39:45,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:39:45,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:39:45,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:39:45,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:39:45,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:39:45,807 INFO L87 Difference]: Start difference. First operand 283661 states and 395602 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 12 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) [2023-12-21 13:39:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:39:51,862 INFO L93 Difference]: Finished difference Result 1233443 states and 1717611 transitions. [2023-12-21 13:39:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 13:39:51,863 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 12 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 [2023-12-21 13:39:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:39:54,718 INFO L225 Difference]: With dead ends: 1233443 [2023-12-21 13:39:54,719 INFO L226 Difference]: Without dead ends: 1192458 [2023-12-21 13:39:54,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=372, Invalid=1034, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 13:39:54,927 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 4776 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:39:54,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4776 Valid, 4486 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:39:55,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192458 states. [2023-12-21 13:40:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192458 to 279312. [2023-12-21 13:40:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279312 states, 279311 states have (on average 1.395125863285012) internal successors, (389674), 279311 states have internal predecessors, (389674), 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) [2023-12-21 13:40:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279312 states to 279312 states and 389674 transitions. [2023-12-21 13:40:04,819 INFO L78 Accepts]: Start accepts. Automaton has 279312 states and 389674 transitions. Word has length 93 [2023-12-21 13:40:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:40:04,819 INFO L495 AbstractCegarLoop]: Abstraction has 279312 states and 389674 transitions. [2023-12-21 13:40:04,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 12 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) [2023-12-21 13:40:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 279312 states and 389674 transitions. [2023-12-21 13:40:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:40:04,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:40:04,830 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] [2023-12-21 13:40:04,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:40:04,830 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:40:04,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:40:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash 316505279, now seen corresponding path program 1 times [2023-12-21 13:40:04,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:40:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770467099] [2023-12-21 13:40:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:40:04,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:40:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:40:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:40:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:40:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770467099] [2023-12-21 13:40:04,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770467099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:40:04,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:40:04,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:40:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560606965] [2023-12-21 13:40:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:40:04,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:40:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:40:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:40:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:40:04,881 INFO L87 Difference]: Start difference. First operand 279312 states and 389674 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) [2023-12-21 13:40:07,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:40:07,984 INFO L93 Difference]: Finished difference Result 785002 states and 1098841 transitions. [2023-12-21 13:40:07,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:40:07,985 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 [2023-12-21 13:40:07,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:40:09,394 INFO L225 Difference]: With dead ends: 785002 [2023-12-21 13:40:09,394 INFO L226 Difference]: Without dead ends: 510021 [2023-12-21 13:40:09,549 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 [2023-12-21 13:40:09,549 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 155 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:40:09,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 652 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:40:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510021 states. [2023-12-21 13:40:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510021 to 485100. [2023-12-21 13:40:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485100 states, 485099 states have (on average 1.3906027429452545) internal successors, (674580), 485099 states have internal predecessors, (674580), 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) [2023-12-21 13:40:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485100 states to 485100 states and 674580 transitions. [2023-12-21 13:40:16,707 INFO L78 Accepts]: Start accepts. Automaton has 485100 states and 674580 transitions. Word has length 93 [2023-12-21 13:40:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:40:16,708 INFO L495 AbstractCegarLoop]: Abstraction has 485100 states and 674580 transitions. [2023-12-21 13:40:16,708 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) [2023-12-21 13:40:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 485100 states and 674580 transitions. [2023-12-21 13:40:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:40:16,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:40:16,717 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] [2023-12-21 13:40:16,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:40:16,717 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:40:16,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:40:16,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1888998514, now seen corresponding path program 1 times [2023-12-21 13:40:16,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:40:16,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208230312] [2023-12-21 13:40:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:40:16,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:40:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:40:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:40:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:40:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208230312] [2023-12-21 13:40:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208230312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:40:17,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:40:17,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:40:17,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733913832] [2023-12-21 13:40:17,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:40:17,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:40:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:40:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:40:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:40:17,460 INFO L87 Difference]: Start difference. First operand 485100 states and 674580 transitions. Second operand has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 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) [2023-12-21 13:40:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:40:36,257 INFO L93 Difference]: Finished difference Result 4218044 states and 5831023 transitions. [2023-12-21 13:40:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-21 13:40:36,258 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 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 [2023-12-21 13:40:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:40:49,251 INFO L225 Difference]: With dead ends: 4218044 [2023-12-21 13:40:49,251 INFO L226 Difference]: Without dead ends: 4043368 [2023-12-21 13:40:50,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=569, Invalid=2083, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 13:40:50,473 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 6264 mSDsluCounter, 6958 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6264 SdHoareTripleChecker+Valid, 7810 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:40:50,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6264 Valid, 7810 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:40:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043368 states. [2023-12-21 13:41:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043368 to 484978. [2023-12-21 13:41:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484978 states, 484977 states have (on average 1.3906721349672253) internal successors, (674444), 484977 states have internal predecessors, (674444), 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) [2023-12-21 13:41:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484978 states to 484978 states and 674444 transitions. [2023-12-21 13:41:33,534 INFO L78 Accepts]: Start accepts. Automaton has 484978 states and 674444 transitions. Word has length 93 [2023-12-21 13:41:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:41:33,535 INFO L495 AbstractCegarLoop]: Abstraction has 484978 states and 674444 transitions. [2023-12-21 13:41:33,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 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) [2023-12-21 13:41:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 484978 states and 674444 transitions. [2023-12-21 13:41:33,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:41:33,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:41:33,544 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] [2023-12-21 13:41:33,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:41:33,544 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:41:33,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:41:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1497318112, now seen corresponding path program 1 times [2023-12-21 13:41:33,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:41:33,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425707288] [2023-12-21 13:41:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:41:33,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:41:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:41:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:41:34,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:41:34,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425707288] [2023-12-21 13:41:34,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425707288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:41:34,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:41:34,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:41:34,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231478254] [2023-12-21 13:41:34,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:41:34,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:41:34,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:41:34,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:41:34,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:41:34,484 INFO L87 Difference]: Start difference. First operand 484978 states and 674444 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 12 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)