./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 883ae562acbdc0ddaf57b9acda91c94407da87efc745325e9971c16b2e3730c3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:53:57,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:53:57,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:53:57,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:53:57,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:53:57,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:53:57,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:53:57,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:53:57,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:53:57,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:53:57,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:53:57,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:53:57,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:53:57,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:53:57,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:53:57,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:53:57,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:53:57,224 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:53:57,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:53:57,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:53:57,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:53:57,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:53:57,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:53:57,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:53:57,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:53:57,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:53:57,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:53:57,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:53:57,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:53:57,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:53:57,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:53:57,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:53:57,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:53:57,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:53:57,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:53:57,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:53:57,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:53:57,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:53:57,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:53:57,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:53:57,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:53:57,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:53:57,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 883ae562acbdc0ddaf57b9acda91c94407da87efc745325e9971c16b2e3730c3 [2024-11-08 15:53:57,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:53:57,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:53:57,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:53:57,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:53:57,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:53:57,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:53:58,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:53:59,137 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:53:59,138 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:53:59,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59fdbf663/ba36c7b627be46b480ce9af06da729a7/FLAGdfed7a3aa [2024-11-08 15:53:59,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59fdbf663/ba36c7b627be46b480ce9af06da729a7 [2024-11-08 15:53:59,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:53:59,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:53:59,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:53:59,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:53:59,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:53:59,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aaea38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59, skipping insertion in model container [2024-11-08 15:53:59,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:53:59,517 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7165,7178] [2024-11-08 15:53:59,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:53:59,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:53:59,645 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7165,7178] [2024-11-08 15:53:59,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:53:59,712 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:53:59,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59 WrapperNode [2024-11-08 15:53:59,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:53:59,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:53:59,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:53:59,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:53:59,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,773 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 605 [2024-11-08 15:53:59,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:53:59,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:53:59,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:53:59,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:53:59,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,816 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]. [2024-11-08 15:53:59,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:53:59,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:53:59,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:53:59,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:53:59,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (1/1) ... [2024-11-08 15:53:59,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:53:59,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:53:59,893 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) [2024-11-08 15:53:59,919 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 [2024-11-08 15:53:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:53:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:53:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:53:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:54:00,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:54:00,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:54:00,792 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-08 15:54:00,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:54:00,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:54:00,812 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 15:54:00,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:54:00 BoogieIcfgContainer [2024-11-08 15:54:00,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:54:00,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:54:00,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:54:00,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:54:00,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:53:59" (1/3) ... [2024-11-08 15:54:00,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71618611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:54:00, skipping insertion in model container [2024-11-08 15:54:00,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:53:59" (2/3) ... [2024-11-08 15:54:00,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71618611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:54:00, skipping insertion in model container [2024-11-08 15:54:00,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:54:00" (3/3) ... [2024-11-08 15:54:00,825 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:54:00,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:54:00,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:54:00,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:54:00,913 INFO L333 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, 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;@77d02585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:54:00,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:54:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.710344827586207) internal successors, (248), 146 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 15:54:00,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:00,930 INFO L215 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] [2024-11-08 15:54:00,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:00,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash -235222256, now seen corresponding path program 1 times [2024-11-08 15:54:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398630631] [2024-11-08 15:54:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:00,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:01,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:01,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398630631] [2024-11-08 15:54:01,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398630631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:01,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:01,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:01,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295515706] [2024-11-08 15:54:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:01,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:01,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:01,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:01,555 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.710344827586207) internal successors, (248), 146 states have internal predecessors, (248), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:01,811 INFO L93 Difference]: Finished difference Result 467 states and 755 transitions. [2024-11-08 15:54:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-08 15:54:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:01,829 INFO L225 Difference]: With dead ends: 467 [2024-11-08 15:54:01,830 INFO L226 Difference]: Without dead ends: 393 [2024-11-08 15:54:01,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:01,840 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 824 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:01,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 865 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:01,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-08 15:54:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 231. [2024-11-08 15:54:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.508695652173913) internal successors, (347), 230 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 347 transitions. [2024-11-08 15:54:01,908 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 347 transitions. Word has length 48 [2024-11-08 15:54:01,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:01,909 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 347 transitions. [2024-11-08 15:54:01,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 347 transitions. [2024-11-08 15:54:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 15:54:01,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:01,911 INFO L215 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] [2024-11-08 15:54:01,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:54:01,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:01,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:01,913 INFO L85 PathProgramCache]: Analyzing trace with hash 407331856, now seen corresponding path program 1 times [2024-11-08 15:54:01,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:01,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723364357] [2024-11-08 15:54:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:01,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:02,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:02,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723364357] [2024-11-08 15:54:02,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723364357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:02,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:02,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:02,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631576430] [2024-11-08 15:54:02,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:02,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:02,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:02,046 INFO L87 Difference]: Start difference. First operand 231 states and 347 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:02,084 INFO L93 Difference]: Finished difference Result 569 states and 875 transitions. [2024-11-08 15:54:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:02,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-08 15:54:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:02,087 INFO L225 Difference]: With dead ends: 569 [2024-11-08 15:54:02,087 INFO L226 Difference]: Without dead ends: 401 [2024-11-08 15:54:02,089 INFO L431 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 [2024-11-08 15:54:02,090 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 143 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:02,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 392 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-08 15:54:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2024-11-08 15:54:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.5125628140703518) internal successors, (602), 398 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 602 transitions. [2024-11-08 15:54:02,110 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 602 transitions. Word has length 51 [2024-11-08 15:54:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:02,110 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 602 transitions. [2024-11-08 15:54:02,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 602 transitions. [2024-11-08 15:54:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 15:54:02,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:02,113 INFO L215 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] [2024-11-08 15:54:02,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:54:02,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:02,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 738781713, now seen corresponding path program 1 times [2024-11-08 15:54:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:02,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747089344] [2024-11-08 15:54:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:02,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:02,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:02,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747089344] [2024-11-08 15:54:02,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747089344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:02,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:02,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029477236] [2024-11-08 15:54:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:02,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:02,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:02,226 INFO L87 Difference]: Start difference. First operand 399 states and 602 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:02,274 INFO L93 Difference]: Finished difference Result 979 states and 1498 transitions. [2024-11-08 15:54:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:02,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-08 15:54:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:02,277 INFO L225 Difference]: With dead ends: 979 [2024-11-08 15:54:02,278 INFO L226 Difference]: Without dead ends: 691 [2024-11-08 15:54:02,282 INFO L431 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 [2024-11-08 15:54:02,284 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 130 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:02,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 392 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-08 15:54:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 689. [2024-11-08 15:54:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 1.502906976744186) internal successors, (1034), 688 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1034 transitions. [2024-11-08 15:54:02,320 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1034 transitions. Word has length 51 [2024-11-08 15:54:02,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:02,320 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1034 transitions. [2024-11-08 15:54:02,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1034 transitions. [2024-11-08 15:54:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 15:54:02,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:02,324 INFO L215 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] [2024-11-08 15:54:02,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:54:02,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:02,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -865520847, now seen corresponding path program 1 times [2024-11-08 15:54:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:02,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442826447] [2024-11-08 15:54:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:02,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442826447] [2024-11-08 15:54:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442826447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:02,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:02,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:02,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998869186] [2024-11-08 15:54:02,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:02,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:02,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:02,453 INFO L87 Difference]: Start difference. First operand 689 states and 1034 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:02,552 INFO L93 Difference]: Finished difference Result 1811 states and 2729 transitions. [2024-11-08 15:54:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:02,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-08 15:54:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:02,559 INFO L225 Difference]: With dead ends: 1811 [2024-11-08 15:54:02,559 INFO L226 Difference]: Without dead ends: 1209 [2024-11-08 15:54:02,561 INFO L431 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 [2024-11-08 15:54:02,562 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 139 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:02,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2024-11-08 15:54:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2024-11-08 15:54:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1206 states have (on average 1.466832504145937) internal successors, (1769), 1206 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1769 transitions. [2024-11-08 15:54:02,599 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1769 transitions. Word has length 51 [2024-11-08 15:54:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:02,599 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1769 transitions. [2024-11-08 15:54:02,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1769 transitions. [2024-11-08 15:54:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 15:54:02,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:02,606 INFO L215 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] [2024-11-08 15:54:02,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:54:02,607 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:02,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:02,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1376619607, now seen corresponding path program 1 times [2024-11-08 15:54:02,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:02,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391653232] [2024-11-08 15:54:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:02,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:02,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391653232] [2024-11-08 15:54:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391653232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:02,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:02,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:02,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500168434] [2024-11-08 15:54:02,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:02,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:02,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:02,767 INFO L87 Difference]: Start difference. First operand 1207 states and 1769 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:02,904 INFO L93 Difference]: Finished difference Result 2347 states and 3506 transitions. [2024-11-08 15:54:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 15:54:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:02,915 INFO L225 Difference]: With dead ends: 2347 [2024-11-08 15:54:02,915 INFO L226 Difference]: Without dead ends: 2001 [2024-11-08 15:54:02,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:02,920 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 562 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:02,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 894 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2024-11-08 15:54:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1611. [2024-11-08 15:54:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1610 states have (on average 1.4745341614906833) internal successors, (2374), 1610 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2374 transitions. [2024-11-08 15:54:02,964 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2374 transitions. Word has length 52 [2024-11-08 15:54:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:02,965 INFO L471 AbstractCegarLoop]: Abstraction has 1611 states and 2374 transitions. [2024-11-08 15:54:02,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2374 transitions. [2024-11-08 15:54:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 15:54:02,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:02,967 INFO L215 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] [2024-11-08 15:54:02,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:54:02,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:02,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1542318405, now seen corresponding path program 1 times [2024-11-08 15:54:02,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:02,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30783846] [2024-11-08 15:54:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:02,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:03,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:03,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30783846] [2024-11-08 15:54:03,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30783846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:03,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:03,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:03,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174769106] [2024-11-08 15:54:03,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:03,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:03,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:03,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:03,167 INFO L87 Difference]: Start difference. First operand 1611 states and 2374 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:03,267 INFO L93 Difference]: Finished difference Result 2721 states and 4066 transitions. [2024-11-08 15:54:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-08 15:54:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:03,282 INFO L225 Difference]: With dead ends: 2721 [2024-11-08 15:54:03,282 INFO L226 Difference]: Without dead ends: 2375 [2024-11-08 15:54:03,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:03,287 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 568 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:03,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 870 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:03,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2024-11-08 15:54:03,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1921. [2024-11-08 15:54:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1920 states have (on average 1.4802083333333333) internal successors, (2842), 1920 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2842 transitions. [2024-11-08 15:54:03,352 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2842 transitions. Word has length 52 [2024-11-08 15:54:03,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:03,353 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 2842 transitions. [2024-11-08 15:54:03,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2842 transitions. [2024-11-08 15:54:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 15:54:03,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:03,355 INFO L215 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] [2024-11-08 15:54:03,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:54:03,356 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:03,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1268142435, now seen corresponding path program 1 times [2024-11-08 15:54:03,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:03,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951453293] [2024-11-08 15:54:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:03,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:03,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:03,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951453293] [2024-11-08 15:54:03,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951453293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:03,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:03,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922318690] [2024-11-08 15:54:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:03,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:03,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:03,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:03,534 INFO L87 Difference]: Start difference. First operand 1921 states and 2842 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:03,642 INFO L93 Difference]: Finished difference Result 3135 states and 4687 transitions. [2024-11-08 15:54:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:03,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-08 15:54:03,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:03,652 INFO L225 Difference]: With dead ends: 3135 [2024-11-08 15:54:03,653 INFO L226 Difference]: Without dead ends: 2789 [2024-11-08 15:54:03,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:03,656 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 570 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:03,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1003 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:03,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2024-11-08 15:54:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2216. [2024-11-08 15:54:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2215 states have (on average 1.4853273137697518) internal successors, (3290), 2215 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3290 transitions. [2024-11-08 15:54:03,709 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3290 transitions. Word has length 53 [2024-11-08 15:54:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:03,709 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 3290 transitions. [2024-11-08 15:54:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3290 transitions. [2024-11-08 15:54:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:54:03,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:03,712 INFO L215 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] [2024-11-08 15:54:03,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:54:03,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:03,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:03,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1868949312, now seen corresponding path program 1 times [2024-11-08 15:54:03,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:03,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795384350] [2024-11-08 15:54:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:03,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:03,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795384350] [2024-11-08 15:54:03,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795384350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:03,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:03,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:54:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054606197] [2024-11-08 15:54:03,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:03,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:03,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:03,877 INFO L87 Difference]: Start difference. First operand 2216 states and 3290 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:04,083 INFO L93 Difference]: Finished difference Result 5194 states and 7716 transitions. [2024-11-08 15:54:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-08 15:54:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:04,094 INFO L225 Difference]: With dead ends: 5194 [2024-11-08 15:54:04,094 INFO L226 Difference]: Without dead ends: 3055 [2024-11-08 15:54:04,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:04,099 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 774 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:04,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 213 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2024-11-08 15:54:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3037. [2024-11-08 15:54:04,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 1.4720026350461133) internal successors, (4469), 3036 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4469 transitions. [2024-11-08 15:54:04,162 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4469 transitions. Word has length 56 [2024-11-08 15:54:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:04,162 INFO L471 AbstractCegarLoop]: Abstraction has 3037 states and 4469 transitions. [2024-11-08 15:54:04,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4469 transitions. [2024-11-08 15:54:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:54:04,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:04,164 INFO L215 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] [2024-11-08 15:54:04,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:54:04,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:04,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -281542782, now seen corresponding path program 1 times [2024-11-08 15:54:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047398359] [2024-11-08 15:54:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:04,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:04,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047398359] [2024-11-08 15:54:04,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047398359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:04,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:04,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:54:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224056315] [2024-11-08 15:54:04,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:04,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:04,277 INFO L87 Difference]: Start difference. First operand 3037 states and 4469 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:04,488 INFO L93 Difference]: Finished difference Result 7096 states and 10425 transitions. [2024-11-08 15:54:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:04,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 15:54:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:04,502 INFO L225 Difference]: With dead ends: 7096 [2024-11-08 15:54:04,502 INFO L226 Difference]: Without dead ends: 4145 [2024-11-08 15:54:04,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:04,508 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 806 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:04,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 201 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2024-11-08 15:54:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 3037. [2024-11-08 15:54:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 1.4555335968379446) internal successors, (4419), 3036 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4419 transitions. [2024-11-08 15:54:04,578 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4419 transitions. Word has length 57 [2024-11-08 15:54:04,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:04,578 INFO L471 AbstractCegarLoop]: Abstraction has 3037 states and 4419 transitions. [2024-11-08 15:54:04,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4419 transitions. [2024-11-08 15:54:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 15:54:04,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:04,580 INFO L215 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] [2024-11-08 15:54:04,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:54:04,581 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:04,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1520651092, now seen corresponding path program 1 times [2024-11-08 15:54:04,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:04,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616779335] [2024-11-08 15:54:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:04,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:04,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:04,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616779335] [2024-11-08 15:54:04,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616779335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:04,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:04,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:54:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872622205] [2024-11-08 15:54:04,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:04,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:04,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:04,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:04,698 INFO L87 Difference]: Start difference. First operand 3037 states and 4419 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:04,884 INFO L93 Difference]: Finished difference Result 7242 states and 10532 transitions. [2024-11-08 15:54:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 15:54:04,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:04,899 INFO L225 Difference]: With dead ends: 7242 [2024-11-08 15:54:04,899 INFO L226 Difference]: Without dead ends: 4246 [2024-11-08 15:54:04,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:04,905 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 783 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:04,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 211 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2024-11-08 15:54:04,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 4221. [2024-11-08 15:54:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4221 states, 4220 states have (on average 1.4417061611374407) internal successors, (6084), 4220 states have internal predecessors, (6084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4221 states to 4221 states and 6084 transitions. [2024-11-08 15:54:04,991 INFO L78 Accepts]: Start accepts. Automaton has 4221 states and 6084 transitions. Word has length 57 [2024-11-08 15:54:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:04,992 INFO L471 AbstractCegarLoop]: Abstraction has 4221 states and 6084 transitions. [2024-11-08 15:54:04,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:04,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4221 states and 6084 transitions. [2024-11-08 15:54:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 15:54:04,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:04,995 INFO L215 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] [2024-11-08 15:54:04,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:54:04,995 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:04,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1438328999, now seen corresponding path program 1 times [2024-11-08 15:54:04,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:04,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513206484] [2024-11-08 15:54:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:04,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:05,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:05,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513206484] [2024-11-08 15:54:05,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513206484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:05,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:05,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:54:05,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479924506] [2024-11-08 15:54:05,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:05,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:54:05,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:05,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:54:05,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:05,158 INFO L87 Difference]: Start difference. First operand 4221 states and 6084 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:05,506 INFO L93 Difference]: Finished difference Result 10022 states and 14369 transitions. [2024-11-08 15:54:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:54:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-08 15:54:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:05,546 INFO L225 Difference]: With dead ends: 10022 [2024-11-08 15:54:05,546 INFO L226 Difference]: Without dead ends: 8652 [2024-11-08 15:54:05,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:54:05,552 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 1342 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:05,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 368 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8652 states. [2024-11-08 15:54:05,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8652 to 4233. [2024-11-08 15:54:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4232 states have (on average 1.4413988657844992) internal successors, (6100), 4232 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 6100 transitions. [2024-11-08 15:54:05,663 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 6100 transitions. Word has length 58 [2024-11-08 15:54:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:05,663 INFO L471 AbstractCegarLoop]: Abstraction has 4233 states and 6100 transitions. [2024-11-08 15:54:05,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 6100 transitions. [2024-11-08 15:54:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 15:54:05,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:05,669 INFO L215 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] [2024-11-08 15:54:05,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:54:05,669 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:05,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -497478917, now seen corresponding path program 1 times [2024-11-08 15:54:05,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:05,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093914789] [2024-11-08 15:54:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:05,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:05,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:05,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093914789] [2024-11-08 15:54:05,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093914789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:05,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:05,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:54:05,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675231240] [2024-11-08 15:54:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:05,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:54:05,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:05,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:54:05,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:05,809 INFO L87 Difference]: Start difference. First operand 4233 states and 6100 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:06,078 INFO L93 Difference]: Finished difference Result 9517 states and 13618 transitions. [2024-11-08 15:54:06,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:54:06,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-08 15:54:06,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:06,095 INFO L225 Difference]: With dead ends: 9517 [2024-11-08 15:54:06,096 INFO L226 Difference]: Without dead ends: 7303 [2024-11-08 15:54:06,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:54:06,102 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 999 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:06,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 318 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2024-11-08 15:54:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 4253. [2024-11-08 15:54:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 4252 states have (on average 1.440263405456256) internal successors, (6124), 4252 states have internal predecessors, (6124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6124 transitions. [2024-11-08 15:54:06,275 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6124 transitions. Word has length 59 [2024-11-08 15:54:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:06,275 INFO L471 AbstractCegarLoop]: Abstraction has 4253 states and 6124 transitions. [2024-11-08 15:54:06,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6124 transitions. [2024-11-08 15:54:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 15:54:06,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:06,279 INFO L215 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] [2024-11-08 15:54:06,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:54:06,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:06,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2094347044, now seen corresponding path program 1 times [2024-11-08 15:54:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:06,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2944550] [2024-11-08 15:54:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:06,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:06,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2944550] [2024-11-08 15:54:06,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2944550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:06,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:06,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:54:06,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667132849] [2024-11-08 15:54:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:06,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:54:06,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:06,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:54:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:06,451 INFO L87 Difference]: Start difference. First operand 4253 states and 6124 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:06,775 INFO L93 Difference]: Finished difference Result 11059 states and 15823 transitions. [2024-11-08 15:54:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:54:06,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-08 15:54:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:06,800 INFO L225 Difference]: With dead ends: 11059 [2024-11-08 15:54:06,800 INFO L226 Difference]: Without dead ends: 9017 [2024-11-08 15:54:06,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:54:06,808 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 1180 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:06,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 352 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:06,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2024-11-08 15:54:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 4331. [2024-11-08 15:54:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4330 states have (on average 1.4374133949191685) internal successors, (6224), 4330 states have internal predecessors, (6224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 6224 transitions. [2024-11-08 15:54:06,956 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 6224 transitions. Word has length 59 [2024-11-08 15:54:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:06,957 INFO L471 AbstractCegarLoop]: Abstraction has 4331 states and 6224 transitions. [2024-11-08 15:54:06,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 6224 transitions. [2024-11-08 15:54:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:54:06,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:06,960 INFO L215 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] [2024-11-08 15:54:06,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:54:06,960 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:06,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:06,961 INFO L85 PathProgramCache]: Analyzing trace with hash 740296785, now seen corresponding path program 1 times [2024-11-08 15:54:06,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:06,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551632116] [2024-11-08 15:54:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:06,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:07,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:07,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551632116] [2024-11-08 15:54:07,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551632116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:07,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:07,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:54:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557982822] [2024-11-08 15:54:07,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:07,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:54:07,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:54:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:54:07,269 INFO L87 Difference]: Start difference. First operand 4331 states and 6224 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:07,750 INFO L93 Difference]: Finished difference Result 10446 states and 15050 transitions. [2024-11-08 15:54:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 15:54:07,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 15:54:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:07,764 INFO L225 Difference]: With dead ends: 10446 [2024-11-08 15:54:07,764 INFO L226 Difference]: Without dead ends: 6869 [2024-11-08 15:54:07,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:54:07,772 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 505 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:07,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 644 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:54:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6869 states. [2024-11-08 15:54:07,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6869 to 4331. [2024-11-08 15:54:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4330 states have (on average 1.4360277136258661) internal successors, (6218), 4330 states have internal predecessors, (6218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 6218 transitions. [2024-11-08 15:54:07,895 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 6218 transitions. Word has length 61 [2024-11-08 15:54:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:07,895 INFO L471 AbstractCegarLoop]: Abstraction has 4331 states and 6218 transitions. [2024-11-08 15:54:07,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:07,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 6218 transitions. [2024-11-08 15:54:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:54:07,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:07,898 INFO L215 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] [2024-11-08 15:54:07,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:54:07,899 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:07,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1120228239, now seen corresponding path program 1 times [2024-11-08 15:54:07,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186762894] [2024-11-08 15:54:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:08,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:08,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:08,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186762894] [2024-11-08 15:54:08,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186762894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:08,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:08,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:54:08,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047550095] [2024-11-08 15:54:08,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:08,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:54:08,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:54:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:54:08,234 INFO L87 Difference]: Start difference. First operand 4331 states and 6218 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:08,821 INFO L93 Difference]: Finished difference Result 10211 states and 14718 transitions. [2024-11-08 15:54:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:54:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 15:54:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:08,833 INFO L225 Difference]: With dead ends: 10211 [2024-11-08 15:54:08,834 INFO L226 Difference]: Without dead ends: 6767 [2024-11-08 15:54:08,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 15:54:08,840 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1184 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:08,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 692 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:54:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states. [2024-11-08 15:54:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 4249. [2024-11-08 15:54:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 4248 states have (on average 1.4324387947269304) internal successors, (6085), 4248 states have internal predecessors, (6085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:08,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 6085 transitions. [2024-11-08 15:54:08,917 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 6085 transitions. Word has length 61 [2024-11-08 15:54:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:08,917 INFO L471 AbstractCegarLoop]: Abstraction has 4249 states and 6085 transitions. [2024-11-08 15:54:08,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 6085 transitions. [2024-11-08 15:54:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:54:08,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:08,920 INFO L215 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] [2024-11-08 15:54:08,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:54:08,920 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:08,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:08,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1451678096, now seen corresponding path program 1 times [2024-11-08 15:54:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:08,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189287320] [2024-11-08 15:54:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:08,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189287320] [2024-11-08 15:54:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189287320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:54:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617144610] [2024-11-08 15:54:09,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:09,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:54:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:54:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:54:09,233 INFO L87 Difference]: Start difference. First operand 4249 states and 6085 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:09,901 INFO L93 Difference]: Finished difference Result 11244 states and 16202 transitions. [2024-11-08 15:54:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:54:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-08 15:54:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:09,919 INFO L225 Difference]: With dead ends: 11244 [2024-11-08 15:54:09,919 INFO L226 Difference]: Without dead ends: 7672 [2024-11-08 15:54:09,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:54:09,927 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 932 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:09,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 915 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:54:09,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2024-11-08 15:54:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 4074. [2024-11-08 15:54:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4074 states, 4073 states have (on average 1.4286766511171127) internal successors, (5819), 4073 states have internal predecessors, (5819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4074 states to 4074 states and 5819 transitions. [2024-11-08 15:54:10,037 INFO L78 Accepts]: Start accepts. Automaton has 4074 states and 5819 transitions. Word has length 61 [2024-11-08 15:54:10,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:10,037 INFO L471 AbstractCegarLoop]: Abstraction has 4074 states and 5819 transitions. [2024-11-08 15:54:10,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4074 states and 5819 transitions. [2024-11-08 15:54:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:54:10,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:10,041 INFO L215 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] [2024-11-08 15:54:10,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:54:10,041 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:10,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash 218587336, now seen corresponding path program 1 times [2024-11-08 15:54:10,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:10,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717749421] [2024-11-08 15:54:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:10,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:10,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717749421] [2024-11-08 15:54:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717749421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:10,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:10,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977522646] [2024-11-08 15:54:10,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:10,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:10,103 INFO L87 Difference]: Start difference. First operand 4074 states and 5819 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:10,139 INFO L93 Difference]: Finished difference Result 6080 states and 8710 transitions. [2024-11-08 15:54:10,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:10,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 15:54:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:10,146 INFO L225 Difference]: With dead ends: 6080 [2024-11-08 15:54:10,147 INFO L226 Difference]: Without dead ends: 3967 [2024-11-08 15:54:10,151 INFO L431 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 [2024-11-08 15:54:10,151 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 132 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:10,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 476 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2024-11-08 15:54:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3965. [2024-11-08 15:54:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 1.4129667003027244) internal successors, (5601), 3964 states have internal predecessors, (5601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5601 transitions. [2024-11-08 15:54:10,208 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5601 transitions. Word has length 62 [2024-11-08 15:54:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:10,208 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 5601 transitions. [2024-11-08 15:54:10,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5601 transitions. [2024-11-08 15:54:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:54:10,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:10,211 INFO L215 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] [2024-11-08 15:54:10,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:54:10,211 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:10,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:10,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1004137309, now seen corresponding path program 1 times [2024-11-08 15:54:10,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:10,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130190181] [2024-11-08 15:54:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:10,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130190181] [2024-11-08 15:54:10,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130190181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:10,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:10,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840929298] [2024-11-08 15:54:10,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:10,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:10,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:10,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:10,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:10,270 INFO L87 Difference]: Start difference. First operand 3965 states and 5601 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:10,299 INFO L93 Difference]: Finished difference Result 5467 states and 7722 transitions. [2024-11-08 15:54:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 15:54:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:10,305 INFO L225 Difference]: With dead ends: 5467 [2024-11-08 15:54:10,306 INFO L226 Difference]: Without dead ends: 3372 [2024-11-08 15:54:10,309 INFO L431 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 [2024-11-08 15:54:10,310 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 120 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:10,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 465 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-08 15:54:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 3370. [2024-11-08 15:54:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 1.3864648263579697) internal successors, (4671), 3369 states have internal predecessors, (4671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 4671 transitions. [2024-11-08 15:54:10,352 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 4671 transitions. Word has length 62 [2024-11-08 15:54:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:10,352 INFO L471 AbstractCegarLoop]: Abstraction has 3370 states and 4671 transitions. [2024-11-08 15:54:10,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 4671 transitions. [2024-11-08 15:54:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:54:10,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:10,355 INFO L215 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] [2024-11-08 15:54:10,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:54:10,355 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:10,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:10,356 INFO L85 PathProgramCache]: Analyzing trace with hash -17959571, now seen corresponding path program 1 times [2024-11-08 15:54:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:10,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260200942] [2024-11-08 15:54:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:10,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260200942] [2024-11-08 15:54:10,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260200942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:10,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:10,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983898214] [2024-11-08 15:54:10,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:10,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:10,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:10,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:10,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:10,414 INFO L87 Difference]: Start difference. First operand 3370 states and 4671 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:10,446 INFO L93 Difference]: Finished difference Result 4119 states and 5686 transitions. [2024-11-08 15:54:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:10,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 15:54:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:10,451 INFO L225 Difference]: With dead ends: 4119 [2024-11-08 15:54:10,451 INFO L226 Difference]: Without dead ends: 2782 [2024-11-08 15:54:10,472 INFO L431 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 [2024-11-08 15:54:10,473 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 150 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:10,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 481 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2024-11-08 15:54:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2780. [2024-11-08 15:54:10,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 1.3537243612810363) internal successors, (3762), 2779 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3762 transitions. [2024-11-08 15:54:10,509 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3762 transitions. Word has length 62 [2024-11-08 15:54:10,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:10,509 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 3762 transitions. [2024-11-08 15:54:10,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:10,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3762 transitions. [2024-11-08 15:54:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:54:10,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:10,513 INFO L215 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] [2024-11-08 15:54:10,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:54:10,513 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:10,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash -467159905, now seen corresponding path program 1 times [2024-11-08 15:54:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626153233] [2024-11-08 15:54:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:10,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:11,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:11,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626153233] [2024-11-08 15:54:11,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626153233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:11,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:11,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 15:54:11,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849156823] [2024-11-08 15:54:11,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:11,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 15:54:11,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:11,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 15:54:11,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:54:11,250 INFO L87 Difference]: Start difference. First operand 2780 states and 3762 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:12,176 INFO L93 Difference]: Finished difference Result 7247 states and 9930 transitions. [2024-11-08 15:54:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 15:54:12,177 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 15:54:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:12,186 INFO L225 Difference]: With dead ends: 7247 [2024-11-08 15:54:12,187 INFO L226 Difference]: Without dead ends: 6859 [2024-11-08 15:54:12,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-08 15:54:12,191 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1632 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:12,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 1768 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:54:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2024-11-08 15:54:12,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 2691. [2024-11-08 15:54:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2690 states have (on average 1.3535315985130112) internal successors, (3641), 2690 states have internal predecessors, (3641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3641 transitions. [2024-11-08 15:54:12,248 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3641 transitions. Word has length 63 [2024-11-08 15:54:12,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:12,249 INFO L471 AbstractCegarLoop]: Abstraction has 2691 states and 3641 transitions. [2024-11-08 15:54:12,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3641 transitions. [2024-11-08 15:54:12,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:54:12,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:12,253 INFO L215 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] [2024-11-08 15:54:12,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:54:12,253 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:12,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:12,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1791049563, now seen corresponding path program 1 times [2024-11-08 15:54:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022319139] [2024-11-08 15:54:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:12,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:12,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022319139] [2024-11-08 15:54:12,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022319139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:12,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:12,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 15:54:12,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376976966] [2024-11-08 15:54:12,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:12,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 15:54:12,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 15:54:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:54:12,832 INFO L87 Difference]: Start difference. First operand 2691 states and 3641 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:13,627 INFO L93 Difference]: Finished difference Result 4033 states and 5495 transitions. [2024-11-08 15:54:13,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:54:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 15:54:13,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:13,633 INFO L225 Difference]: With dead ends: 4033 [2024-11-08 15:54:13,634 INFO L226 Difference]: Without dead ends: 3807 [2024-11-08 15:54:13,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 15:54:13,636 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1060 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:13,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1606 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:54:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2024-11-08 15:54:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 2644. [2024-11-08 15:54:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2643 states have (on average 1.35262958758986) internal successors, (3575), 2643 states have internal predecessors, (3575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3575 transitions. [2024-11-08 15:54:13,674 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3575 transitions. Word has length 63 [2024-11-08 15:54:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:13,674 INFO L471 AbstractCegarLoop]: Abstraction has 2644 states and 3575 transitions. [2024-11-08 15:54:13,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3575 transitions. [2024-11-08 15:54:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:54:13,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:13,677 INFO L215 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] [2024-11-08 15:54:13,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:54:13,677 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:13,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash -37454644, now seen corresponding path program 1 times [2024-11-08 15:54:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687540595] [2024-11-08 15:54:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:13,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687540595] [2024-11-08 15:54:13,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687540595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:13,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:13,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:13,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627432669] [2024-11-08 15:54:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:13,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:13,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:13,740 INFO L87 Difference]: Start difference. First operand 2644 states and 3575 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:13,795 INFO L93 Difference]: Finished difference Result 4848 states and 6611 transitions. [2024-11-08 15:54:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:13,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 15:54:13,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:13,800 INFO L225 Difference]: With dead ends: 4848 [2024-11-08 15:54:13,801 INFO L226 Difference]: Without dead ends: 3502 [2024-11-08 15:54:13,803 INFO L431 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 [2024-11-08 15:54:13,803 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 150 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:13,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 307 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2024-11-08 15:54:13,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2474. [2024-11-08 15:54:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2473 states have (on average 1.3517994338859685) internal successors, (3343), 2473 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3343 transitions. [2024-11-08 15:54:13,835 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3343 transitions. Word has length 63 [2024-11-08 15:54:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:13,836 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 3343 transitions. [2024-11-08 15:54:13,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3343 transitions. [2024-11-08 15:54:13,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 15:54:13,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:13,838 INFO L215 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] [2024-11-08 15:54:13,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:54:13,838 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:13,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:13,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1695928295, now seen corresponding path program 1 times [2024-11-08 15:54:13,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:13,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043053399] [2024-11-08 15:54:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:13,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:13,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:13,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043053399] [2024-11-08 15:54:13,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043053399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:13,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:13,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:13,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83791578] [2024-11-08 15:54:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:13,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:13,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:13,927 INFO L87 Difference]: Start difference. First operand 2474 states and 3343 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:13,987 INFO L93 Difference]: Finished difference Result 2480 states and 3346 transitions. [2024-11-08 15:54:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:54:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-08 15:54:13,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:13,990 INFO L225 Difference]: With dead ends: 2480 [2024-11-08 15:54:13,990 INFO L226 Difference]: Without dead ends: 2265 [2024-11-08 15:54:13,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:13,992 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 438 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:13,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 558 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2024-11-08 15:54:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2261. [2024-11-08 15:54:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2260 states have (on average 1.3539823008849559) internal successors, (3060), 2260 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3060 transitions. [2024-11-08 15:54:14,017 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3060 transitions. Word has length 65 [2024-11-08 15:54:14,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:14,018 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 3060 transitions. [2024-11-08 15:54:14,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3060 transitions. [2024-11-08 15:54:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:54:14,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:14,020 INFO L215 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] [2024-11-08 15:54:14,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 15:54:14,021 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:14,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1507814999, now seen corresponding path program 1 times [2024-11-08 15:54:14,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:14,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833940495] [2024-11-08 15:54:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:14,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:14,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:14,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833940495] [2024-11-08 15:54:14,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833940495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:14,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:14,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:14,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985930990] [2024-11-08 15:54:14,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:14,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:14,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:14,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:14,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:14,111 INFO L87 Difference]: Start difference. First operand 2261 states and 3060 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:14,162 INFO L93 Difference]: Finished difference Result 5620 states and 7724 transitions. [2024-11-08 15:54:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-08 15:54:14,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:14,168 INFO L225 Difference]: With dead ends: 5620 [2024-11-08 15:54:14,169 INFO L226 Difference]: Without dead ends: 3863 [2024-11-08 15:54:14,172 INFO L431 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 [2024-11-08 15:54:14,173 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 103 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:14,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2024-11-08 15:54:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3595. [2024-11-08 15:54:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3594 states have (on average 1.3617139677239845) internal successors, (4894), 3594 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 4894 transitions. [2024-11-08 15:54:14,236 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 4894 transitions. Word has length 68 [2024-11-08 15:54:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:14,237 INFO L471 AbstractCegarLoop]: Abstraction has 3595 states and 4894 transitions. [2024-11-08 15:54:14,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 4894 transitions. [2024-11-08 15:54:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 15:54:14,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:14,240 INFO L215 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] [2024-11-08 15:54:14,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 15:54:14,240 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:14,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1724760844, now seen corresponding path program 1 times [2024-11-08 15:54:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79900352] [2024-11-08 15:54:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:14,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:14,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79900352] [2024-11-08 15:54:14,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79900352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:14,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:14,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002374612] [2024-11-08 15:54:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:14,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:14,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:14,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:14,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:14,353 INFO L87 Difference]: Start difference. First operand 3595 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:14,395 INFO L93 Difference]: Finished difference Result 9467 states and 12988 transitions. [2024-11-08 15:54:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 15:54:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:14,404 INFO L225 Difference]: With dead ends: 9467 [2024-11-08 15:54:14,405 INFO L226 Difference]: Without dead ends: 6376 [2024-11-08 15:54:14,410 INFO L431 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 [2024-11-08 15:54:14,411 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 92 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:14,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 397 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2024-11-08 15:54:14,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 5922. [2024-11-08 15:54:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5922 states, 5921 states have (on average 1.3622698868434386) internal successors, (8066), 5921 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5922 states to 5922 states and 8066 transitions. [2024-11-08 15:54:14,480 INFO L78 Accepts]: Start accepts. Automaton has 5922 states and 8066 transitions. Word has length 69 [2024-11-08 15:54:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:14,481 INFO L471 AbstractCegarLoop]: Abstraction has 5922 states and 8066 transitions. [2024-11-08 15:54:14,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5922 states and 8066 transitions. [2024-11-08 15:54:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 15:54:14,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:14,483 INFO L215 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] [2024-11-08 15:54:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 15:54:14,483 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1274692746, now seen corresponding path program 1 times [2024-11-08 15:54:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812183902] [2024-11-08 15:54:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:14,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:14,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812183902] [2024-11-08 15:54:14,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812183902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:14,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:14,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:54:14,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727331648] [2024-11-08 15:54:14,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:14,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:54:14,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:14,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:54:14,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:54:14,685 INFO L87 Difference]: Start difference. First operand 5922 states and 8066 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:14,725 INFO L93 Difference]: Finished difference Result 6416 states and 8723 transitions. [2024-11-08 15:54:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:54:14,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-08 15:54:14,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:14,734 INFO L225 Difference]: With dead ends: 6416 [2024-11-08 15:54:14,734 INFO L226 Difference]: Without dead ends: 6414 [2024-11-08 15:54:14,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:54:14,737 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:14,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 945 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2024-11-08 15:54:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6414. [2024-11-08 15:54:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 6413 states have (on average 1.3344768439108061) internal successors, (8558), 6413 states have internal predecessors, (8558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 8558 transitions. [2024-11-08 15:54:14,812 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 8558 transitions. Word has length 72 [2024-11-08 15:54:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:14,812 INFO L471 AbstractCegarLoop]: Abstraction has 6414 states and 8558 transitions. [2024-11-08 15:54:14,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 8558 transitions. [2024-11-08 15:54:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 15:54:14,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:14,815 INFO L215 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] [2024-11-08 15:54:14,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 15:54:14,815 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:14,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:14,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1392355153, now seen corresponding path program 1 times [2024-11-08 15:54:14,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:14,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238694963] [2024-11-08 15:54:14,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:14,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:14,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:14,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238694963] [2024-11-08 15:54:14,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238694963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:14,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:14,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839444978] [2024-11-08 15:54:14,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:14,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:14,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:14,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:14,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:14,911 INFO L87 Difference]: Start difference. First operand 6414 states and 8558 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:14,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:14,966 INFO L93 Difference]: Finished difference Result 16838 states and 22446 transitions. [2024-11-08 15:54:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:14,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-08 15:54:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:14,980 INFO L225 Difference]: With dead ends: 16838 [2024-11-08 15:54:14,980 INFO L226 Difference]: Without dead ends: 10848 [2024-11-08 15:54:14,988 INFO L431 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 [2024-11-08 15:54:14,989 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 118 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:14,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 313 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10848 states. [2024-11-08 15:54:15,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10848 to 10682. [2024-11-08 15:54:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10682 states, 10681 states have (on average 1.2995037917797958) internal successors, (13880), 10681 states have internal predecessors, (13880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10682 states to 10682 states and 13880 transitions. [2024-11-08 15:54:15,107 INFO L78 Accepts]: Start accepts. Automaton has 10682 states and 13880 transitions. Word has length 73 [2024-11-08 15:54:15,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:15,107 INFO L471 AbstractCegarLoop]: Abstraction has 10682 states and 13880 transitions. [2024-11-08 15:54:15,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 10682 states and 13880 transitions. [2024-11-08 15:54:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 15:54:15,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:15,110 INFO L215 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] [2024-11-08 15:54:15,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 15:54:15,111 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:15,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2638653, now seen corresponding path program 1 times [2024-11-08 15:54:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270189151] [2024-11-08 15:54:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:15,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:15,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270189151] [2024-11-08 15:54:15,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270189151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:15,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:15,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:15,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014060190] [2024-11-08 15:54:15,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:15,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:15,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:15,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:15,193 INFO L87 Difference]: Start difference. First operand 10682 states and 13880 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:15,272 INFO L93 Difference]: Finished difference Result 26998 states and 35062 transitions. [2024-11-08 15:54:15,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:15,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-08 15:54:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:15,293 INFO L225 Difference]: With dead ends: 26998 [2024-11-08 15:54:15,294 INFO L226 Difference]: Without dead ends: 16726 [2024-11-08 15:54:15,305 INFO L431 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 [2024-11-08 15:54:15,306 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 97 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:15,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 391 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16726 states. [2024-11-08 15:54:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16726 to 15140. [2024-11-08 15:54:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15140 states, 15139 states have (on average 1.2876676134487086) internal successors, (19494), 15139 states have internal predecessors, (19494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15140 states to 15140 states and 19494 transitions. [2024-11-08 15:54:15,466 INFO L78 Accepts]: Start accepts. Automaton has 15140 states and 19494 transitions. Word has length 74 [2024-11-08 15:54:15,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:15,466 INFO L471 AbstractCegarLoop]: Abstraction has 15140 states and 19494 transitions. [2024-11-08 15:54:15,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15140 states and 19494 transitions. [2024-11-08 15:54:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 15:54:15,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:15,472 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:15,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 15:54:15,472 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:15,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash -786165995, now seen corresponding path program 1 times [2024-11-08 15:54:15,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:15,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494232534] [2024-11-08 15:54:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:15,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:15,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494232534] [2024-11-08 15:54:15,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494232534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:54:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369733687] [2024-11-08 15:54:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:15,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:54:15,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:54:15,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:54:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:16,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 15:54:16,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:54:17,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:17,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:54:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:18,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369733687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:54:18,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:54:18,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 30 [2024-11-08 15:54:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164791416] [2024-11-08 15:54:18,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:54:18,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 15:54:18,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 15:54:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2024-11-08 15:54:18,610 INFO L87 Difference]: Start difference. First operand 15140 states and 19494 transitions. Second operand has 31 states, 31 states have (on average 7.67741935483871) internal successors, (238), 30 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:32,634 INFO L93 Difference]: Finished difference Result 112668 states and 142940 transitions. [2024-11-08 15:54:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2024-11-08 15:54:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.67741935483871) internal successors, (238), 30 states have internal predecessors, (238), 0 states have call successors, (0), 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 [2024-11-08 15:54:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:32,774 INFO L225 Difference]: With dead ends: 112668 [2024-11-08 15:54:32,774 INFO L226 Difference]: Without dead ends: 105102 [2024-11-08 15:54:32,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28165 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=10707, Invalid=57153, Unknown=0, NotChecked=0, Total=67860 [2024-11-08 15:54:32,807 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 6184 mSDsluCounter, 4951 mSDsCounter, 0 mSdLazyCounter, 5184 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6184 SdHoareTripleChecker+Valid, 5262 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 5184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:32,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6184 Valid, 5262 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 5184 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 15:54:32,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105102 states. [2024-11-08 15:54:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105102 to 31485. [2024-11-08 15:54:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31485 states, 31484 states have (on average 1.287288781603354) internal successors, (40529), 31484 states have internal predecessors, (40529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31485 states to 31485 states and 40529 transitions. [2024-11-08 15:54:33,586 INFO L78 Accepts]: Start accepts. Automaton has 31485 states and 40529 transitions. Word has length 92 [2024-11-08 15:54:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:33,586 INFO L471 AbstractCegarLoop]: Abstraction has 31485 states and 40529 transitions. [2024-11-08 15:54:33,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.67741935483871) internal successors, (238), 30 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:33,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31485 states and 40529 transitions. [2024-11-08 15:54:33,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 15:54:33,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:33,594 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:33,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:54:33,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-08 15:54:33,796 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:33,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 960217551, now seen corresponding path program 1 times [2024-11-08 15:54:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824606634] [2024-11-08 15:54:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:33,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:34,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824606634] [2024-11-08 15:54:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824606634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:54:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186197052] [2024-11-08 15:54:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:34,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:54:34,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:54:34,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:54:34,098 INFO L87 Difference]: Start difference. First operand 31485 states and 40529 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 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) [2024-11-08 15:54:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:35,144 INFO L93 Difference]: Finished difference Result 64864 states and 83177 transitions. [2024-11-08 15:54:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:54:35,145 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 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 [2024-11-08 15:54:35,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:35,386 INFO L225 Difference]: With dead ends: 64864 [2024-11-08 15:54:35,386 INFO L226 Difference]: Without dead ends: 52272 [2024-11-08 15:54:35,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-08 15:54:35,398 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 693 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:35,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 765 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:54:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52272 states. [2024-11-08 15:54:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52272 to 45922. [2024-11-08 15:54:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45922 states, 45921 states have (on average 1.2870582086627034) internal successors, (59103), 45921 states have internal predecessors, (59103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45922 states to 45922 states and 59103 transitions. [2024-11-08 15:54:36,070 INFO L78 Accepts]: Start accepts. Automaton has 45922 states and 59103 transitions. Word has length 92 [2024-11-08 15:54:36,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:36,070 INFO L471 AbstractCegarLoop]: Abstraction has 45922 states and 59103 transitions. [2024-11-08 15:54:36,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 9 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) [2024-11-08 15:54:36,070 INFO L276 IsEmpty]: Start isEmpty. Operand 45922 states and 59103 transitions. [2024-11-08 15:54:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 15:54:36,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:36,089 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:36,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 15:54:36,090 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:36,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash 504447511, now seen corresponding path program 1 times [2024-11-08 15:54:36,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903312033] [2024-11-08 15:54:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903312033] [2024-11-08 15:54:36,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903312033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:36,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:36,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:54:36,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019403013] [2024-11-08 15:54:36,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:36,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:54:36,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:36,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:54:36,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:54:36,343 INFO L87 Difference]: Start difference. First operand 45922 states and 59103 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) [2024-11-08 15:54:36,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:36,775 INFO L93 Difference]: Finished difference Result 91339 states and 117646 transitions. [2024-11-08 15:54:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:54:36,776 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 [2024-11-08 15:54:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:36,872 INFO L225 Difference]: With dead ends: 91339 [2024-11-08 15:54:36,872 INFO L226 Difference]: Without dead ends: 45924 [2024-11-08 15:54:36,907 INFO L431 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 [2024-11-08 15:54:36,910 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 88 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:36,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 337 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:54:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45924 states. [2024-11-08 15:54:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45924 to 44265. [2024-11-08 15:54:37,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44265 states, 44264 states have (on average 1.2677570938008313) internal successors, (56116), 44264 states have internal predecessors, (56116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44265 states to 44265 states and 56116 transitions. [2024-11-08 15:54:37,478 INFO L78 Accepts]: Start accepts. Automaton has 44265 states and 56116 transitions. Word has length 93 [2024-11-08 15:54:37,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:37,478 INFO L471 AbstractCegarLoop]: Abstraction has 44265 states and 56116 transitions. [2024-11-08 15:54:37,478 INFO L472 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) [2024-11-08 15:54:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 44265 states and 56116 transitions. [2024-11-08 15:54:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 15:54:37,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:37,485 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:37,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 15:54:37,485 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:37,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash -460824765, now seen corresponding path program 1 times [2024-11-08 15:54:37,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:37,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931264676] [2024-11-08 15:54:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:37,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:37,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931264676] [2024-11-08 15:54:37,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931264676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:54:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307672859] [2024-11-08 15:54:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:37,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:37,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:54:37,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:54:37,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:54:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:37,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 15:54:37,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:54:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:38,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:54:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:39,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307672859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:54:39,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:54:39,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 18 [2024-11-08 15:54:39,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958778531] [2024-11-08 15:54:39,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:54:39,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 15:54:39,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 15:54:39,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:54:39,143 INFO L87 Difference]: Start difference. First operand 44265 states and 56116 transitions. Second operand has 18 states, 18 states have (on average 12.0) internal successors, (216), 18 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:41,659 INFO L93 Difference]: Finished difference Result 262197 states and 329176 transitions. [2024-11-08 15:54:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-08 15:54:41,663 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.0) internal successors, (216), 18 states have internal predecessors, (216), 0 states have call successors, (0), 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 [2024-11-08 15:54:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:42,046 INFO L225 Difference]: With dead ends: 262197 [2024-11-08 15:54:42,046 INFO L226 Difference]: Without dead ends: 218439 [2024-11-08 15:54:42,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1638 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1067, Invalid=3489, Unknown=0, NotChecked=0, Total=4556 [2024-11-08 15:54:42,141 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 3772 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 5206 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:42,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3772 Valid, 5206 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 15:54:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218439 states. [2024-11-08 15:54:44,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218439 to 159421. [2024-11-08 15:54:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159421 states, 159420 states have (on average 1.2503763643206625) internal successors, (199335), 159420 states have internal predecessors, (199335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159421 states to 159421 states and 199335 transitions. [2024-11-08 15:54:44,774 INFO L78 Accepts]: Start accepts. Automaton has 159421 states and 199335 transitions. Word has length 93 [2024-11-08 15:54:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:44,774 INFO L471 AbstractCegarLoop]: Abstraction has 159421 states and 199335 transitions. [2024-11-08 15:54:44,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.0) internal successors, (216), 18 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 159421 states and 199335 transitions. [2024-11-08 15:54:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 15:54:44,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:44,789 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:44,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:54:44,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 15:54:44,989 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:44,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:44,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1417910127, now seen corresponding path program 1 times [2024-11-08 15:54:44,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:44,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484245588] [2024-11-08 15:54:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484245588] [2024-11-08 15:54:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484245588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:54:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478838439] [2024-11-08 15:54:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:45,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:45,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:54:45,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:54:45,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:54:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:45,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:54:45,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:54:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:46,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:54:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:46,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478838439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:54:46,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:54:46,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 15:54:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105251178] [2024-11-08 15:54:46,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:54:46,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 15:54:46,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:46,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 15:54:46,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:54:46,296 INFO L87 Difference]: Start difference. First operand 159421 states and 199335 transitions. Second operand has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:47,669 INFO L93 Difference]: Finished difference Result 286825 states and 358993 transitions. [2024-11-08 15:54:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:54:47,675 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 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 100 [2024-11-08 15:54:47,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:47,915 INFO L225 Difference]: With dead ends: 286825 [2024-11-08 15:54:47,915 INFO L226 Difference]: Without dead ends: 127869 [2024-11-08 15:54:47,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:54:48,001 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 1728 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:48,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 812 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:54:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127869 states. [2024-11-08 15:54:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127869 to 124542. [2024-11-08 15:54:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124542 states, 124541 states have (on average 1.2264153973390288) internal successors, (152739), 124541 states have internal predecessors, (152739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124542 states to 124542 states and 152739 transitions. [2024-11-08 15:54:49,825 INFO L78 Accepts]: Start accepts. Automaton has 124542 states and 152739 transitions. Word has length 100 [2024-11-08 15:54:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:49,825 INFO L471 AbstractCegarLoop]: Abstraction has 124542 states and 152739 transitions. [2024-11-08 15:54:49,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 124542 states and 152739 transitions. [2024-11-08 15:54:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 15:54:49,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:49,836 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:49,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:54:50,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:50,037 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:50,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1736251826, now seen corresponding path program 1 times [2024-11-08 15:54:50,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:50,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726288093] [2024-11-08 15:54:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:50,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:50,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:50,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726288093] [2024-11-08 15:54:50,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726288093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:54:50,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:54:50,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:54:50,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484333869] [2024-11-08 15:54:50,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:54:50,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:54:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:54:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:54:50,158 INFO L87 Difference]: Start difference. First operand 124542 states and 152739 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:51,489 INFO L93 Difference]: Finished difference Result 242172 states and 296263 transitions. [2024-11-08 15:54:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:54:51,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-08 15:54:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:51,762 INFO L225 Difference]: With dead ends: 242172 [2024-11-08 15:54:51,762 INFO L226 Difference]: Without dead ends: 118123 [2024-11-08 15:54:51,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:54:51,824 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 325 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:51,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 326 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:54:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118123 states. [2024-11-08 15:54:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118123 to 116326. [2024-11-08 15:54:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116326 states, 116325 states have (on average 1.1990629701267999) internal successors, (139481), 116325 states have internal predecessors, (139481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116326 states to 116326 states and 139481 transitions. [2024-11-08 15:54:53,255 INFO L78 Accepts]: Start accepts. Automaton has 116326 states and 139481 transitions. Word has length 103 [2024-11-08 15:54:53,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:53,256 INFO L471 AbstractCegarLoop]: Abstraction has 116326 states and 139481 transitions. [2024-11-08 15:54:53,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 116326 states and 139481 transitions. [2024-11-08 15:54:53,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 15:54:53,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:53,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:53,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 15:54:53,265 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:53,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash -13984917, now seen corresponding path program 1 times [2024-11-08 15:54:53,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339613687] [2024-11-08 15:54:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:53,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:53,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:53,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339613687] [2024-11-08 15:54:53,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339613687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:54:53,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592976813] [2024-11-08 15:54:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:53,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:53,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:54:53,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:54:53,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:54:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:53,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:54:53,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:54:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:53,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:54:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:53,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592976813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:54:53,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:54:53,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 15:54:53,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816520128] [2024-11-08 15:54:53,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:54:53,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 15:54:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:54:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 15:54:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:54:53,962 INFO L87 Difference]: Start difference. First operand 116326 states and 139481 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:55,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:54:55,223 INFO L93 Difference]: Finished difference Result 251719 states and 301834 transitions. [2024-11-08 15:54:55,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:54:55,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 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 104 [2024-11-08 15:54:55,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:54:55,410 INFO L225 Difference]: With dead ends: 251719 [2024-11-08 15:54:55,410 INFO L226 Difference]: Without dead ends: 135886 [2024-11-08 15:54:55,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:54:55,484 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1409 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:54:55,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 780 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:54:55,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135886 states. [2024-11-08 15:54:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135886 to 113859. [2024-11-08 15:54:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113859 states, 113858 states have (on average 1.1715557975724147) internal successors, (133391), 113858 states have internal predecessors, (133391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113859 states to 113859 states and 133391 transitions. [2024-11-08 15:54:57,991 INFO L78 Accepts]: Start accepts. Automaton has 113859 states and 133391 transitions. Word has length 104 [2024-11-08 15:54:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:54:57,991 INFO L471 AbstractCegarLoop]: Abstraction has 113859 states and 133391 transitions. [2024-11-08 15:54:57,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:54:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 113859 states and 133391 transitions. [2024-11-08 15:54:58,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 15:54:58,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:54:58,005 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:54:58,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:54:58,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:58,206 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:54:58,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:54:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash -536066972, now seen corresponding path program 1 times [2024-11-08 15:54:58,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:54:58,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44861986] [2024-11-08 15:54:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:54:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:58,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:58,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:54:58,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44861986] [2024-11-08 15:54:58,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44861986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:54:58,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285304322] [2024-11-08 15:54:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:54:58,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:54:58,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:54:58,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:54:58,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:54:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:54:58,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 15:54:58,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:54:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:54:59,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:55:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:55:00,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285304322] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:55:00,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:55:00,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-11-08 15:55:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269146964] [2024-11-08 15:55:00,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:55:00,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 15:55:00,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:55:00,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 15:55:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2024-11-08 15:55:00,348 INFO L87 Difference]: Start difference. First operand 113859 states and 133391 transitions. Second operand has 30 states, 30 states have (on average 8.7) internal successors, (261), 29 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:55:02,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:55:02,590 INFO L93 Difference]: Finished difference Result 335215 states and 392738 transitions. [2024-11-08 15:55:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 15:55:02,591 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.7) internal successors, (261), 29 states have internal predecessors, (261), 0 states have call successors, (0), 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 106 [2024-11-08 15:55:02,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:55:03,361 INFO L225 Difference]: With dead ends: 335215 [2024-11-08 15:55:03,365 INFO L226 Difference]: Without dead ends: 239613 [2024-11-08 15:55:03,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=820, Invalid=2602, Unknown=0, NotChecked=0, Total=3422 [2024-11-08 15:55:03,421 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 2952 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:55:03,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 2259 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:55:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239613 states. [2024-11-08 15:55:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239613 to 114858. [2024-11-08 15:55:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114858 states, 114857 states have (on average 1.1714479744377793) internal successors, (134549), 114857 states have internal predecessors, (134549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:55:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114858 states to 114858 states and 134549 transitions. [2024-11-08 15:55:05,568 INFO L78 Accepts]: Start accepts. Automaton has 114858 states and 134549 transitions. Word has length 106 [2024-11-08 15:55:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:55:05,568 INFO L471 AbstractCegarLoop]: Abstraction has 114858 states and 134549 transitions. [2024-11-08 15:55:05,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.7) internal successors, (261), 29 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:55:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 114858 states and 134549 transitions. [2024-11-08 15:55:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 15:55:05,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:55:05,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:55:05,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:55:05,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-08 15:55:05,777 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:55:05,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:55:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash -184058337, now seen corresponding path program 1 times [2024-11-08 15:55:05,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:55:05,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102627944] [2024-11-08 15:55:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:55:05,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:55:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:55:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:55:07,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:55:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102627944] [2024-11-08 15:55:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102627944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:55:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512776236] [2024-11-08 15:55:07,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:55:07,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:55:07,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:55:07,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:55:07,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:55:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:55:07,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 15:55:07,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:55:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:55:08,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:55:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:55:08,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512776236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:55:08,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:55:08,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 11] total 36 [2024-11-08 15:55:08,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577977571] [2024-11-08 15:55:08,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:55:08,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-08 15:55:08,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:55:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-08 15:55:08,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1163, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 15:55:08,714 INFO L87 Difference]: Start difference. First operand 114858 states and 134549 transitions. Second operand has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)