./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.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 5c7b2e547f39f7d53d20335ecc1b1fbde6acdc52384cb52caa86017352bf317a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:58:21,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:58:21,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:58:21,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:58:21,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:58:21,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:58:21,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:58:21,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:58:21,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:58:21,692 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:58:21,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:58:21,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:58:21,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:58:21,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:58:21,693 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:58:21,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:58:21,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:58:21,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:58:21,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:58:21,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:58:21,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:58:21,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:58:21,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:58:21,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:58:21,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:58:21,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:58:21,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:58:21,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:58:21,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:58:21,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:58:21,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:58:21,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:58:21,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c7b2e547f39f7d53d20335ecc1b1fbde6acdc52384cb52caa86017352bf317a [2024-10-14 03:58:21,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:58:21,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:58:21,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:58:21,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:58:21,945 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:58:21,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:58:23,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:58:23,277 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:58:23,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:58:23,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e922a90df/843d4a0deeee4f67bf421f5ae2d2f7d0/FLAG5e1189377 [2024-10-14 03:58:23,670 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e922a90df/843d4a0deeee4f67bf421f5ae2d2f7d0 [2024-10-14 03:58:23,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:58:23,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:58:23,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:58:23,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:58:23,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:58:23,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:58:23" (1/1) ... [2024-10-14 03:58:23,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46bbc084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:23, skipping insertion in model container [2024-10-14 03:58:23,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:58:23" (1/1) ... [2024-10-14 03:58:23,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:58:23,924 WARN L248 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.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7834,7847] [2024-10-14 03:58:23,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:58:23,977 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:58:24,054 WARN L248 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.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7834,7847] [2024-10-14 03:58:24,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:58:24,127 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:58:24,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24 WrapperNode [2024-10-14 03:58:24,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:58:24,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:58:24,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:58:24,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:58:24,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,168 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 671 [2024-10-14 03:58:24,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:58:24,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:58:24,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:58:24,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:58:24,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,199 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]. [2024-10-14 03:58:24,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:58:24,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:58:24,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:58:24,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:58:24,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (1/1) ... [2024-10-14 03:58:24,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:58:24,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:58:24,254 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) [2024-10-14 03:58:24,256 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 [2024-10-14 03:58:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:58:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:58:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:58:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:58:24,376 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:58:24,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:58:24,834 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-10-14 03:58:24,835 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:58:24,874 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:58:24,874 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:58:24,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:58:24 BoogieIcfgContainer [2024-10-14 03:58:24,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:58:24,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:58:24,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:58:24,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:58:24,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:58:23" (1/3) ... [2024-10-14 03:58:24,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4636cc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:58:24, skipping insertion in model container [2024-10-14 03:58:24,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:58:24" (2/3) ... [2024-10-14 03:58:24,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4636cc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:58:24, skipping insertion in model container [2024-10-14 03:58:24,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:58:24" (3/3) ... [2024-10-14 03:58:24,884 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:58:24,897 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:58:24,898 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:58:24,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:58:24,967 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;@370cdd05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:58:24,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:58:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.7655172413793103) internal successors, (256), 146 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:58:24,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:24,980 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] [2024-10-14 03:58:24,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:24,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:24,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1466721515, now seen corresponding path program 1 times [2024-10-14 03:58:24,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:24,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070358179] [2024-10-14 03:58:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:25,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:25,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070358179] [2024-10-14 03:58:25,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070358179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:25,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:25,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:25,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004899517] [2024-10-14 03:58:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:25,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:25,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:25,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:25,535 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.7655172413793103) internal successors, (256), 146 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2024-10-14 03:58:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:25,860 INFO L93 Difference]: Finished difference Result 824 states and 1337 transitions. [2024-10-14 03:58:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:58:25,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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 [2024-10-14 03:58:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:25,882 INFO L225 Difference]: With dead ends: 824 [2024-10-14 03:58:25,883 INFO L226 Difference]: Without dead ends: 749 [2024-10-14 03:58:25,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:58:25,888 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1616 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:25,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 1830 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:58:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-14 03:58:25,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 225. [2024-10-14 03:58:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 224 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 328 transitions. [2024-10-14 03:58:25,945 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 328 transitions. Word has length 74 [2024-10-14 03:58:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:25,945 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 328 transitions. [2024-10-14 03:58:25,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2024-10-14 03:58:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 328 transitions. [2024-10-14 03:58:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:25,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:25,948 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, 1, 1] [2024-10-14 03:58:25,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:58:25,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:25,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:25,950 INFO L85 PathProgramCache]: Analyzing trace with hash 778354453, now seen corresponding path program 1 times [2024-10-14 03:58:25,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358961571] [2024-10-14 03:58:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:25,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:26,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:26,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358961571] [2024-10-14 03:58:26,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358961571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:26,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:26,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:26,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285427185] [2024-10-14 03:58:26,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:26,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:26,174 INFO L87 Difference]: Start difference. First operand 225 states and 328 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:26,312 INFO L93 Difference]: Finished difference Result 920 states and 1430 transitions. [2024-10-14 03:58:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:26,315 INFO L225 Difference]: With dead ends: 920 [2024-10-14 03:58:26,315 INFO L226 Difference]: Without dead ends: 800 [2024-10-14 03:58:26,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:26,318 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1027 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:26,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1246 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:26,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-14 03:58:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 354. [2024-10-14 03:58:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 1.5127478753541077) internal successors, (534), 353 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2024-10-14 03:58:26,354 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 534 transitions. Word has length 76 [2024-10-14 03:58:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:26,354 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 534 transitions. [2024-10-14 03:58:26,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 534 transitions. [2024-10-14 03:58:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:26,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:26,356 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, 1, 1] [2024-10-14 03:58:26,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:58:26,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:26,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:26,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1223894625, now seen corresponding path program 1 times [2024-10-14 03:58:26,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:26,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248780685] [2024-10-14 03:58:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:26,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:26,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:26,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248780685] [2024-10-14 03:58:26,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248780685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:26,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:26,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884416586] [2024-10-14 03:58:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:26,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:26,535 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:26,648 INFO L93 Difference]: Finished difference Result 1044 states and 1628 transitions. [2024-10-14 03:58:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:26,652 INFO L225 Difference]: With dead ends: 1044 [2024-10-14 03:58:26,653 INFO L226 Difference]: Without dead ends: 924 [2024-10-14 03:58:26,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:26,656 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 1294 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:26,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1054 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-14 03:58:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 537. [2024-10-14 03:58:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.541044776119403) internal successors, (826), 536 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 826 transitions. [2024-10-14 03:58:26,677 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 826 transitions. Word has length 76 [2024-10-14 03:58:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:26,679 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 826 transitions. [2024-10-14 03:58:26,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 826 transitions. [2024-10-14 03:58:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:26,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:26,682 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, 1, 1] [2024-10-14 03:58:26,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:58:26,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:26,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1494551508, now seen corresponding path program 1 times [2024-10-14 03:58:26,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:26,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772367858] [2024-10-14 03:58:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:26,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:26,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:26,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772367858] [2024-10-14 03:58:26,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772367858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:26,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:26,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445292538] [2024-10-14 03:58:26,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:26,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:26,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:26,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:26,963 INFO L87 Difference]: Start difference. First operand 537 states and 826 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:27,115 INFO L93 Difference]: Finished difference Result 954 states and 1490 transitions. [2024-10-14 03:58:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:27,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:27,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:27,119 INFO L225 Difference]: With dead ends: 954 [2024-10-14 03:58:27,119 INFO L226 Difference]: Without dead ends: 539 [2024-10-14 03:58:27,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:58:27,123 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 604 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:27,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 680 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-14 03:58:27,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2024-10-14 03:58:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.5335820895522387) internal successors, (822), 536 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 822 transitions. [2024-10-14 03:58:27,131 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 822 transitions. Word has length 76 [2024-10-14 03:58:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:27,132 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 822 transitions. [2024-10-14 03:58:27,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 822 transitions. [2024-10-14 03:58:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:27,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:27,133 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, 1, 1] [2024-10-14 03:58:27,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:58:27,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:27,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:27,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1286699701, now seen corresponding path program 1 times [2024-10-14 03:58:27,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:27,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492857271] [2024-10-14 03:58:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:27,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:27,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:27,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492857271] [2024-10-14 03:58:27,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492857271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:27,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:27,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346044527] [2024-10-14 03:58:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:27,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:27,200 INFO L87 Difference]: Start difference. First operand 537 states and 822 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:27,226 INFO L93 Difference]: Finished difference Result 1322 states and 2065 transitions. [2024-10-14 03:58:27,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:27,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:27,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:27,229 INFO L225 Difference]: With dead ends: 1322 [2024-10-14 03:58:27,229 INFO L226 Difference]: Without dead ends: 907 [2024-10-14 03:58:27,230 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 [2024-10-14 03:58:27,231 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:27,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 465 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-10-14 03:58:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 891. [2024-10-14 03:58:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.5393258426966292) internal successors, (1370), 890 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1370 transitions. [2024-10-14 03:58:27,245 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1370 transitions. Word has length 76 [2024-10-14 03:58:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:27,246 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1370 transitions. [2024-10-14 03:58:27,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1370 transitions. [2024-10-14 03:58:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:27,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:27,250 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, 1, 1] [2024-10-14 03:58:27,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:58:27,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:27,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:27,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1445257025, now seen corresponding path program 1 times [2024-10-14 03:58:27,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:27,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065591056] [2024-10-14 03:58:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:27,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:27,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:27,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065591056] [2024-10-14 03:58:27,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065591056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:27,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:27,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:27,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749221789] [2024-10-14 03:58:27,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:27,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:27,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:27,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:27,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:27,391 INFO L87 Difference]: Start difference. First operand 891 states and 1370 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:27,518 INFO L93 Difference]: Finished difference Result 2022 states and 3142 transitions. [2024-10-14 03:58:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:27,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:27,525 INFO L225 Difference]: With dead ends: 2022 [2024-10-14 03:58:27,525 INFO L226 Difference]: Without dead ends: 1801 [2024-10-14 03:58:27,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:27,528 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1036 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:27,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1395 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:27,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-10-14 03:58:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1111. [2024-10-14 03:58:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1110 states have (on average 1.545045045045045) internal successors, (1715), 1110 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1715 transitions. [2024-10-14 03:58:27,558 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1715 transitions. Word has length 76 [2024-10-14 03:58:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:27,558 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1715 transitions. [2024-10-14 03:58:27,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1715 transitions. [2024-10-14 03:58:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:27,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:27,559 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, 1, 1] [2024-10-14 03:58:27,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:58:27,560 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:27,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1334165707, now seen corresponding path program 1 times [2024-10-14 03:58:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:27,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762280526] [2024-10-14 03:58:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:27,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:27,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762280526] [2024-10-14 03:58:27,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762280526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:27,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:27,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:27,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764480648] [2024-10-14 03:58:27,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:27,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:27,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:27,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:27,704 INFO L87 Difference]: Start difference. First operand 1111 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:27,848 INFO L93 Difference]: Finished difference Result 2252 states and 3503 transitions. [2024-10-14 03:58:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:27,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:27,853 INFO L225 Difference]: With dead ends: 2252 [2024-10-14 03:58:27,854 INFO L226 Difference]: Without dead ends: 2031 [2024-10-14 03:58:27,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:27,856 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1079 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:27,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1700 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2024-10-14 03:58:27,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 1346. [2024-10-14 03:58:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 1.549442379182156) internal successors, (2084), 1345 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 2084 transitions. [2024-10-14 03:58:27,878 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 2084 transitions. Word has length 76 [2024-10-14 03:58:27,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:27,878 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 2084 transitions. [2024-10-14 03:58:27,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 2084 transitions. [2024-10-14 03:58:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:58:27,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:27,879 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, 1, 1] [2024-10-14 03:58:27,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:58:27,879 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:27,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash 542802153, now seen corresponding path program 1 times [2024-10-14 03:58:27,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:27,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454760969] [2024-10-14 03:58:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:27,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:27,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:27,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454760969] [2024-10-14 03:58:27,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454760969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:27,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:27,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:27,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716514389] [2024-10-14 03:58:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:27,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:27,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:27,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:27,987 INFO L87 Difference]: Start difference. First operand 1346 states and 2084 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:28,109 INFO L93 Difference]: Finished difference Result 2487 states and 3872 transitions. [2024-10-14 03:58:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:58:28,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 03:58:28,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:28,114 INFO L225 Difference]: With dead ends: 2487 [2024-10-14 03:58:28,114 INFO L226 Difference]: Without dead ends: 2266 [2024-10-14 03:58:28,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:28,116 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1086 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:28,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1263 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2024-10-14 03:58:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1581. [2024-10-14 03:58:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5525316455696203) internal successors, (2453), 1580 states have internal predecessors, (2453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2453 transitions. [2024-10-14 03:58:28,149 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2453 transitions. Word has length 76 [2024-10-14 03:58:28,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:28,149 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2453 transitions. [2024-10-14 03:58:28,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2453 transitions. [2024-10-14 03:58:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 03:58:28,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:28,150 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, 1, 1, 1] [2024-10-14 03:58:28,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:58:28,150 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:28,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:28,151 INFO L85 PathProgramCache]: Analyzing trace with hash -915452786, now seen corresponding path program 1 times [2024-10-14 03:58:28,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:28,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085043108] [2024-10-14 03:58:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:28,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:28,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:28,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085043108] [2024-10-14 03:58:28,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085043108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:28,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:28,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:28,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621454627] [2024-10-14 03:58:28,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:28,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:28,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:28,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:28,242 INFO L87 Difference]: Start difference. First operand 1581 states and 2453 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:28,346 INFO L93 Difference]: Finished difference Result 3126 states and 4869 transitions. [2024-10-14 03:58:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-14 03:58:28,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:28,350 INFO L225 Difference]: With dead ends: 3126 [2024-10-14 03:58:28,350 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 03:58:28,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:28,352 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 555 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:28,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 109 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 03:58:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 03:58:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5354430379746835) internal successors, (2426), 1580 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2426 transitions. [2024-10-14 03:58:28,371 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2426 transitions. Word has length 77 [2024-10-14 03:58:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:28,371 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2426 transitions. [2024-10-14 03:58:28,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2426 transitions. [2024-10-14 03:58:28,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:58:28,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:28,372 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, 1, 1, 1, 1] [2024-10-14 03:58:28,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:58:28,373 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:28,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1967987181, now seen corresponding path program 1 times [2024-10-14 03:58:28,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:28,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024831783] [2024-10-14 03:58:28,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:28,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:28,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024831783] [2024-10-14 03:58:28,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024831783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:28,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:28,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:28,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273089687] [2024-10-14 03:58:28,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:28,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:28,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:28,467 INFO L87 Difference]: Start difference. First operand 1581 states and 2426 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:28,574 INFO L93 Difference]: Finished difference Result 3110 states and 4796 transitions. [2024-10-14 03:58:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:28,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 03:58:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:28,579 INFO L225 Difference]: With dead ends: 3110 [2024-10-14 03:58:28,579 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 03:58:28,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:28,581 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 504 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:28,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 141 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 03:58:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 03:58:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.518354430379747) internal successors, (2399), 1580 states have internal predecessors, (2399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2399 transitions. [2024-10-14 03:58:28,618 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2399 transitions. Word has length 78 [2024-10-14 03:58:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:28,619 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2399 transitions. [2024-10-14 03:58:28,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2399 transitions. [2024-10-14 03:58:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 03:58:28,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:28,620 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, 1, 1, 1, 1, 1] [2024-10-14 03:58:28,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:58:28,620 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:28,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash -732818130, now seen corresponding path program 1 times [2024-10-14 03:58:28,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:28,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368758794] [2024-10-14 03:58:28,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:28,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:28,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368758794] [2024-10-14 03:58:28,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368758794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:28,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:28,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:28,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371871962] [2024-10-14 03:58:28,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:28,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:28,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:28,692 INFO L87 Difference]: Start difference. First operand 1581 states and 2399 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:28,784 INFO L93 Difference]: Finished difference Result 3118 states and 4752 transitions. [2024-10-14 03:58:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 03:58:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:28,788 INFO L225 Difference]: With dead ends: 3118 [2024-10-14 03:58:28,789 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 03:58:28,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:28,791 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 520 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:28,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 125 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 03:58:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 03:58:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5012658227848101) internal successors, (2372), 1580 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2372 transitions. [2024-10-14 03:58:28,807 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2372 transitions. Word has length 79 [2024-10-14 03:58:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:28,808 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2372 transitions. [2024-10-14 03:58:28,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2372 transitions. [2024-10-14 03:58:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:58:28,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:28,809 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, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:28,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:58:28,809 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:28,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1431059085, now seen corresponding path program 1 times [2024-10-14 03:58:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:28,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669855075] [2024-10-14 03:58:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:28,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669855075] [2024-10-14 03:58:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669855075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:28,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346764208] [2024-10-14 03:58:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:28,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:28,878 INFO L87 Difference]: Start difference. First operand 1581 states and 2372 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:28,976 INFO L93 Difference]: Finished difference Result 3114 states and 4694 transitions. [2024-10-14 03:58:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:28,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-14 03:58:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:28,980 INFO L225 Difference]: With dead ends: 3114 [2024-10-14 03:58:28,980 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 03:58:28,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:28,981 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 502 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:28,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 133 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 03:58:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 03:58:28,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.4841772151898733) internal successors, (2345), 1580 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2345 transitions. [2024-10-14 03:58:29,002 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2345 transitions. Word has length 80 [2024-10-14 03:58:29,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:29,002 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2345 transitions. [2024-10-14 03:58:29,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2345 transitions. [2024-10-14 03:58:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 03:58:29,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:29,003 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:29,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:58:29,003 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:29,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1401205566, now seen corresponding path program 1 times [2024-10-14 03:58:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:29,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104705557] [2024-10-14 03:58:29,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:29,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:29,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:29,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104705557] [2024-10-14 03:58:29,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104705557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:29,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:29,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263477982] [2024-10-14 03:58:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:29,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:29,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:29,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:29,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:29,079 INFO L87 Difference]: Start difference. First operand 1581 states and 2345 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:29,169 INFO L93 Difference]: Finished difference Result 3122 states and 4649 transitions. [2024-10-14 03:58:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:29,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-14 03:58:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:29,172 INFO L225 Difference]: With dead ends: 3122 [2024-10-14 03:58:29,172 INFO L226 Difference]: Without dead ends: 1581 [2024-10-14 03:58:29,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:29,174 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 519 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:29,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 117 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-14 03:58:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2024-10-14 03:58:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.4670886075949368) internal successors, (2318), 1580 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2318 transitions. [2024-10-14 03:58:29,193 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2318 transitions. Word has length 81 [2024-10-14 03:58:29,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:29,194 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2318 transitions. [2024-10-14 03:58:29,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2318 transitions. [2024-10-14 03:58:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:58:29,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:29,195 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:29,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:58:29,195 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:29,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1253837381, now seen corresponding path program 1 times [2024-10-14 03:58:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:29,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233425997] [2024-10-14 03:58:29,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:29,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:29,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:29,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233425997] [2024-10-14 03:58:29,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233425997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:29,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:29,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:58:29,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225300961] [2024-10-14 03:58:29,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:29,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:58:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:29,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:58:29,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:29,410 INFO L87 Difference]: Start difference. First operand 1581 states and 2318 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:29,431 INFO L93 Difference]: Finished difference Result 1595 states and 2337 transitions. [2024-10-14 03:58:29,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:58:29,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:58:29,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:29,435 INFO L225 Difference]: With dead ends: 1595 [2024-10-14 03:58:29,435 INFO L226 Difference]: Without dead ends: 1593 [2024-10-14 03:58:29,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:58:29,436 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:29,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 740 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:29,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2024-10-14 03:58:29,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1593. [2024-10-14 03:58:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4591708542713568) internal successors, (2323), 1592 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2323 transitions. [2024-10-14 03:58:29,459 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2323 transitions. Word has length 82 [2024-10-14 03:58:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:29,460 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2323 transitions. [2024-10-14 03:58:29,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2323 transitions. [2024-10-14 03:58:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:58:29,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:29,461 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:29,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:58:29,461 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:29,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1092022775, now seen corresponding path program 1 times [2024-10-14 03:58:29,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:29,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189529463] [2024-10-14 03:58:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:29,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:29,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:29,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189529463] [2024-10-14 03:58:29,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189529463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:29,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:29,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:58:29,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750557373] [2024-10-14 03:58:29,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:29,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:58:29,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:58:29,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:29,881 INFO L87 Difference]: Start difference. First operand 1593 states and 2323 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:30,389 INFO L93 Difference]: Finished difference Result 4633 states and 6775 transitions. [2024-10-14 03:58:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:58:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:30,397 INFO L225 Difference]: With dead ends: 4633 [2024-10-14 03:58:30,397 INFO L226 Difference]: Without dead ends: 3144 [2024-10-14 03:58:30,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 03:58:30,401 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 575 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:30,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 643 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2024-10-14 03:58:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 1593. [2024-10-14 03:58:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4566582914572865) internal successors, (2319), 1592 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:30,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2319 transitions. [2024-10-14 03:58:30,429 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2319 transitions. Word has length 82 [2024-10-14 03:58:30,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:30,430 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2319 transitions. [2024-10-14 03:58:30,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2319 transitions. [2024-10-14 03:58:30,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:58:30,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:30,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:30,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:58:30,431 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:30,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:30,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1679459822, now seen corresponding path program 1 times [2024-10-14 03:58:30,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:30,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461505329] [2024-10-14 03:58:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:30,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:30,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:30,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461505329] [2024-10-14 03:58:30,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461505329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:30,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:30,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:58:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607272221] [2024-10-14 03:58:30,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:30,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:58:30,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:58:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:30,774 INFO L87 Difference]: Start difference. First operand 1593 states and 2319 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:31,206 INFO L93 Difference]: Finished difference Result 4558 states and 6651 transitions. [2024-10-14 03:58:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-14 03:58:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:31,213 INFO L225 Difference]: With dead ends: 4558 [2024-10-14 03:58:31,214 INFO L226 Difference]: Without dead ends: 3114 [2024-10-14 03:58:31,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 03:58:31,216 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 907 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:31,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 567 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:31,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2024-10-14 03:58:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 1593. [2024-10-14 03:58:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4528894472361809) internal successors, (2313), 1592 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2313 transitions. [2024-10-14 03:58:31,238 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2313 transitions. Word has length 83 [2024-10-14 03:58:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:31,239 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2313 transitions. [2024-10-14 03:58:31,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2313 transitions. [2024-10-14 03:58:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:58:31,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:31,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:31,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:58:31,240 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:31,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 989691828, now seen corresponding path program 1 times [2024-10-14 03:58:31,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:31,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581564079] [2024-10-14 03:58:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:31,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:31,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:31,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581564079] [2024-10-14 03:58:31,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581564079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:31,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:31,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:58:31,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732347304] [2024-10-14 03:58:31,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:31,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:58:31,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:58:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:31,559 INFO L87 Difference]: Start difference. First operand 1593 states and 2313 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:32,083 INFO L93 Difference]: Finished difference Result 4603 states and 6707 transitions. [2024-10-14 03:58:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-14 03:58:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:32,090 INFO L225 Difference]: With dead ends: 4603 [2024-10-14 03:58:32,090 INFO L226 Difference]: Without dead ends: 3134 [2024-10-14 03:58:32,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 03:58:32,093 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 798 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:32,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 725 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:32,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2024-10-14 03:58:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1593. [2024-10-14 03:58:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.449748743718593) internal successors, (2308), 1592 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2308 transitions. [2024-10-14 03:58:32,135 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2308 transitions. Word has length 83 [2024-10-14 03:58:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:32,136 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2308 transitions. [2024-10-14 03:58:32,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2308 transitions. [2024-10-14 03:58:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:58:32,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:32,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:32,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:58:32,137 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:32,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1063713276, now seen corresponding path program 1 times [2024-10-14 03:58:32,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:32,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313904545] [2024-10-14 03:58:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:32,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:32,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:32,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313904545] [2024-10-14 03:58:32,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313904545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:32,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:32,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:58:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961301758] [2024-10-14 03:58:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:32,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:58:32,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:32,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:58:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:32,437 INFO L87 Difference]: Start difference. First operand 1593 states and 2308 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:32,897 INFO L93 Difference]: Finished difference Result 4648 states and 6762 transitions. [2024-10-14 03:58:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:32,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:58:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:32,901 INFO L225 Difference]: With dead ends: 4648 [2024-10-14 03:58:32,901 INFO L226 Difference]: Without dead ends: 3149 [2024-10-14 03:58:32,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 03:58:32,903 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 607 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:32,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 576 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-14 03:58:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 1593. [2024-10-14 03:58:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4484924623115578) internal successors, (2306), 1592 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2306 transitions. [2024-10-14 03:58:32,921 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2306 transitions. Word has length 84 [2024-10-14 03:58:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:32,922 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2306 transitions. [2024-10-14 03:58:32,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2306 transitions. [2024-10-14 03:58:32,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:58:32,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:32,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:32,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:58:32,923 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:32,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1440931595, now seen corresponding path program 1 times [2024-10-14 03:58:32,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:32,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043660795] [2024-10-14 03:58:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:33,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:33,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043660795] [2024-10-14 03:58:33,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043660795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:33,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:33,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 03:58:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627064448] [2024-10-14 03:58:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:33,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:58:33,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:58:33,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:58:33,268 INFO L87 Difference]: Start difference. First operand 1593 states and 2306 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:33,731 INFO L93 Difference]: Finished difference Result 4593 states and 6682 transitions. [2024-10-14 03:58:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:58:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:58:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:33,739 INFO L225 Difference]: With dead ends: 4593 [2024-10-14 03:58:33,739 INFO L226 Difference]: Without dead ends: 3149 [2024-10-14 03:58:33,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:58:33,743 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1048 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:33,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 613 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:33,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-14 03:58:33,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 1653. [2024-10-14 03:58:33,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1652 states have (on average 1.4406779661016949) internal successors, (2380), 1652 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2380 transitions. [2024-10-14 03:58:33,766 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2380 transitions. Word has length 85 [2024-10-14 03:58:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:33,766 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2380 transitions. [2024-10-14 03:58:33,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2380 transitions. [2024-10-14 03:58:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:58:33,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:33,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:33,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:58:33,768 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:33,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:33,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1293398352, now seen corresponding path program 1 times [2024-10-14 03:58:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:33,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566293170] [2024-10-14 03:58:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:33,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:33,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:33,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566293170] [2024-10-14 03:58:33,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566293170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:33,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:33,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:58:33,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944772914] [2024-10-14 03:58:33,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:33,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:58:33,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:33,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:58:33,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:58:33,939 INFO L87 Difference]: Start difference. First operand 1653 states and 2380 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:34,263 INFO L93 Difference]: Finished difference Result 4540 states and 6619 transitions. [2024-10-14 03:58:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:58:34,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 03:58:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:34,267 INFO L225 Difference]: With dead ends: 4540 [2024-10-14 03:58:34,267 INFO L226 Difference]: Without dead ends: 3037 [2024-10-14 03:58:34,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:58:34,269 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 498 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:34,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 669 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:58:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2024-10-14 03:58:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 1593. [2024-10-14 03:58:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 1.4478643216080402) internal successors, (2305), 1592 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2305 transitions. [2024-10-14 03:58:34,286 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2305 transitions. Word has length 86 [2024-10-14 03:58:34,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:34,286 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2305 transitions. [2024-10-14 03:58:34,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2305 transitions. [2024-10-14 03:58:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:58:34,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:34,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:34,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:58:34,287 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:34,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1733142020, now seen corresponding path program 1 times [2024-10-14 03:58:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:34,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126142298] [2024-10-14 03:58:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:34,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126142298] [2024-10-14 03:58:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126142298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 03:58:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499314115] [2024-10-14 03:58:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:34,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 03:58:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 03:58:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:58:34,840 INFO L87 Difference]: Start difference. First operand 1593 states and 2305 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:35,573 INFO L93 Difference]: Finished difference Result 6493 states and 9492 transitions. [2024-10-14 03:58:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 03:58:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 03:58:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:35,581 INFO L225 Difference]: With dead ends: 6493 [2024-10-14 03:58:35,581 INFO L226 Difference]: Without dead ends: 6027 [2024-10-14 03:58:35,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-14 03:58:35,583 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 843 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:35,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2500 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:58:35,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2024-10-14 03:58:35,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 1582. [2024-10-14 03:58:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 1.445920303605313) internal successors, (2286), 1581 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:35,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2286 transitions. [2024-10-14 03:58:35,606 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2286 transitions. Word has length 86 [2024-10-14 03:58:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:35,606 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2286 transitions. [2024-10-14 03:58:35,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:35,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2286 transitions. [2024-10-14 03:58:35,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:58:35,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:35,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:35,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:58:35,608 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:35,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:35,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1249822970, now seen corresponding path program 1 times [2024-10-14 03:58:35,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:35,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13307707] [2024-10-14 03:58:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:36,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:36,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:36,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13307707] [2024-10-14 03:58:36,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13307707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:36,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:36,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:58:36,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090674817] [2024-10-14 03:58:36,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:36,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:58:36,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:36,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:58:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:36,057 INFO L87 Difference]: Start difference. First operand 1582 states and 2286 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:36,536 INFO L93 Difference]: Finished difference Result 3499 states and 5099 transitions. [2024-10-14 03:58:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:36,537 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 03:58:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:36,540 INFO L225 Difference]: With dead ends: 3499 [2024-10-14 03:58:36,540 INFO L226 Difference]: Without dead ends: 3023 [2024-10-14 03:58:36,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:58:36,542 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 690 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:36,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1809 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:58:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2024-10-14 03:58:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1556. [2024-10-14 03:58:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 1.4469453376205788) internal successors, (2250), 1555 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2250 transitions. [2024-10-14 03:58:36,571 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2250 transitions. Word has length 86 [2024-10-14 03:58:36,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:36,572 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 2250 transitions. [2024-10-14 03:58:36,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2250 transitions. [2024-10-14 03:58:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:58:36,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:36,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:36,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:58:36,573 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:36,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:36,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1781483708, now seen corresponding path program 1 times [2024-10-14 03:58:36,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:36,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768941847] [2024-10-14 03:58:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:36,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:37,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:37,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768941847] [2024-10-14 03:58:37,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768941847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:37,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:37,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:58:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000107199] [2024-10-14 03:58:37,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:37,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:58:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:58:37,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:37,002 INFO L87 Difference]: Start difference. First operand 1556 states and 2250 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:37,437 INFO L93 Difference]: Finished difference Result 3451 states and 5034 transitions. [2024-10-14 03:58:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 03:58:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:37,441 INFO L225 Difference]: With dead ends: 3451 [2024-10-14 03:58:37,441 INFO L226 Difference]: Without dead ends: 3005 [2024-10-14 03:58:37,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:58:37,442 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 812 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:37,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1186 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-10-14 03:58:37,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1555. [2024-10-14 03:58:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.4446589446589446) internal successors, (2245), 1554 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2245 transitions. [2024-10-14 03:58:37,459 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2245 transitions. Word has length 86 [2024-10-14 03:58:37,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:37,459 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2245 transitions. [2024-10-14 03:58:37,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2245 transitions. [2024-10-14 03:58:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 03:58:37,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:37,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:37,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:58:37,460 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:37,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash 298019482, now seen corresponding path program 1 times [2024-10-14 03:58:37,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:37,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831609469] [2024-10-14 03:58:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:37,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:37,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:37,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831609469] [2024-10-14 03:58:37,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831609469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:37,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:37,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:58:37,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869140030] [2024-10-14 03:58:37,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:37,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:58:37,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:58:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:37,826 INFO L87 Difference]: Start difference. First operand 1555 states and 2245 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:38,286 INFO L93 Difference]: Finished difference Result 6344 states and 9277 transitions. [2024-10-14 03:58:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:58:38,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 03:58:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:38,292 INFO L225 Difference]: With dead ends: 6344 [2024-10-14 03:58:38,292 INFO L226 Difference]: Without dead ends: 5873 [2024-10-14 03:58:38,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:58:38,295 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 905 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:38,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 2445 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:58:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5873 states. [2024-10-14 03:58:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5873 to 1528. [2024-10-14 03:58:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.4479371316306484) internal successors, (2211), 1527 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 2211 transitions. [2024-10-14 03:58:38,319 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 2211 transitions. Word has length 86 [2024-10-14 03:58:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:38,320 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 2211 transitions. [2024-10-14 03:58:38,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 2211 transitions. [2024-10-14 03:58:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 03:58:38,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:38,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:38,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:58:38,321 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:38,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash 30584482, now seen corresponding path program 1 times [2024-10-14 03:58:38,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:38,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300700062] [2024-10-14 03:58:38,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:38,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:38,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:38,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300700062] [2024-10-14 03:58:38,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300700062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:38,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:38,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:58:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254123327] [2024-10-14 03:58:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:38,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:58:38,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:58:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:58:38,418 INFO L87 Difference]: Start difference. First operand 1528 states and 2211 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:38,445 INFO L93 Difference]: Finished difference Result 3557 states and 5196 transitions. [2024-10-14 03:58:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:58:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-14 03:58:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:38,448 INFO L225 Difference]: With dead ends: 3557 [2024-10-14 03:58:38,448 INFO L226 Difference]: Without dead ends: 2119 [2024-10-14 03:58:38,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:58:38,450 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 88 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:38,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 429 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2024-10-14 03:58:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2106. [2024-10-14 03:58:38,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 1.4451306413301663) internal successors, (3042), 2105 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 3042 transitions. [2024-10-14 03:58:38,467 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 3042 transitions. Word has length 87 [2024-10-14 03:58:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:38,467 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 3042 transitions. [2024-10-14 03:58:38,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 3042 transitions. [2024-10-14 03:58:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 03:58:38,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:38,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:38,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:58:38,468 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:38,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1945258374, now seen corresponding path program 1 times [2024-10-14 03:58:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:38,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159231193] [2024-10-14 03:58:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:39,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:39,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159231193] [2024-10-14 03:58:39,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159231193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:39,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:39,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-10-14 03:58:39,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898339985] [2024-10-14 03:58:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:39,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 03:58:39,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 03:58:39,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-10-14 03:58:39,945 INFO L87 Difference]: Start difference. First operand 2106 states and 3042 transitions. Second operand has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:43,676 INFO L93 Difference]: Finished difference Result 14298 states and 20829 transitions. [2024-10-14 03:58:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 03:58:43,677 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-14 03:58:43,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:43,686 INFO L225 Difference]: With dead ends: 14298 [2024-10-14 03:58:43,687 INFO L226 Difference]: Without dead ends: 12280 [2024-10-14 03:58:43,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=455, Invalid=2737, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 03:58:43,691 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 1351 mSDsluCounter, 9062 mSDsCounter, 0 mSdLazyCounter, 6095 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 9587 SdHoareTripleChecker+Invalid, 6102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 6095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:43,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 9587 Invalid, 6102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 6095 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 03:58:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12280 states. [2024-10-14 03:58:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12280 to 2127. [2024-10-14 03:58:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2126 states have (on average 1.442615239887112) internal successors, (3067), 2126 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 3067 transitions. [2024-10-14 03:58:43,746 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 3067 transitions. Word has length 87 [2024-10-14 03:58:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:43,746 INFO L471 AbstractCegarLoop]: Abstraction has 2127 states and 3067 transitions. [2024-10-14 03:58:43,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:43,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 3067 transitions. [2024-10-14 03:58:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 03:58:43,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:43,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:43,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:58:43,747 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:43,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash 531118648, now seen corresponding path program 1 times [2024-10-14 03:58:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:43,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018065976] [2024-10-14 03:58:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:43,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:45,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:45,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018065976] [2024-10-14 03:58:45,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018065976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:45,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:45,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-10-14 03:58:45,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301068647] [2024-10-14 03:58:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:45,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-14 03:58:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-14 03:58:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=972, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 03:58:45,972 INFO L87 Difference]: Start difference. First operand 2127 states and 3067 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:52,819 INFO L93 Difference]: Finished difference Result 14469 states and 21094 transitions. [2024-10-14 03:58:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 03:58:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-14 03:58:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:52,832 INFO L225 Difference]: With dead ends: 14469 [2024-10-14 03:58:52,832 INFO L226 Difference]: Without dead ends: 13814 [2024-10-14 03:58:52,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=585, Invalid=3321, Unknown=0, NotChecked=0, Total=3906 [2024-10-14 03:58:52,836 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 1717 mSDsluCounter, 10622 mSDsCounter, 0 mSdLazyCounter, 7886 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 11165 SdHoareTripleChecker+Invalid, 7896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 7886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:52,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 11165 Invalid, 7896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 7886 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-14 03:58:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2024-10-14 03:58:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 2136. [2024-10-14 03:58:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2135 states have (on average 1.4416861826697893) internal successors, (3078), 2135 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:52,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3078 transitions. [2024-10-14 03:58:52,896 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3078 transitions. Word has length 88 [2024-10-14 03:58:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:52,896 INFO L471 AbstractCegarLoop]: Abstraction has 2136 states and 3078 transitions. [2024-10-14 03:58:52,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:52,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3078 transitions. [2024-10-14 03:58:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 03:58:52,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:52,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 03:58:52,897 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:52,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash 600455321, now seen corresponding path program 1 times [2024-10-14 03:58:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146115940] [2024-10-14 03:58:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:53,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:53,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146115940] [2024-10-14 03:58:53,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146115940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:53,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:53,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:58:53,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646923540] [2024-10-14 03:58:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:53,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:58:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:58:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:53,259 INFO L87 Difference]: Start difference. First operand 2136 states and 3078 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:53,577 INFO L93 Difference]: Finished difference Result 4817 states and 6993 transitions. [2024-10-14 03:58:53,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:58:53,578 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-14 03:58:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:53,581 INFO L225 Difference]: With dead ends: 4817 [2024-10-14 03:58:53,581 INFO L226 Difference]: Without dead ends: 4153 [2024-10-14 03:58:53,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-10-14 03:58:53,582 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 617 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:53,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1581 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2024-10-14 03:58:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 2116. [2024-10-14 03:58:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2116 states, 2115 states have (on average 1.443498817966903) internal successors, (3053), 2115 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 3053 transitions. [2024-10-14 03:58:53,608 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 3053 transitions. Word has length 88 [2024-10-14 03:58:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:53,608 INFO L471 AbstractCegarLoop]: Abstraction has 2116 states and 3053 transitions. [2024-10-14 03:58:53,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 3053 transitions. [2024-10-14 03:58:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:58:53,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:53,610 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:53,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 03:58:53,610 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:53,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1367660145, now seen corresponding path program 1 times [2024-10-14 03:58:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:53,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148405608] [2024-10-14 03:58:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:53,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:53,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:53,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148405608] [2024-10-14 03:58:53,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148405608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:53,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:53,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625808781] [2024-10-14 03:58:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:53,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:53,693 INFO L87 Difference]: Start difference. First operand 2116 states and 3053 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:53,708 INFO L93 Difference]: Finished difference Result 4368 states and 6346 transitions. [2024-10-14 03:58:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:53,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-14 03:58:53,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:53,711 INFO L225 Difference]: With dead ends: 4368 [2024-10-14 03:58:53,711 INFO L226 Difference]: Without dead ends: 2929 [2024-10-14 03:58:53,713 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 [2024-10-14 03:58:53,716 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 80 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:53,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2024-10-14 03:58:53,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2819. [2024-10-14 03:58:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 1.4435770049680625) internal successors, (4068), 2818 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 4068 transitions. [2024-10-14 03:58:53,741 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 4068 transitions. Word has length 116 [2024-10-14 03:58:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:53,742 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 4068 transitions. [2024-10-14 03:58:53,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 4068 transitions. [2024-10-14 03:58:53,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:58:53,760 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:53,760 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:53,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 03:58:53,760 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:53,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:53,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1259976626, now seen corresponding path program 1 times [2024-10-14 03:58:53,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:53,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229068401] [2024-10-14 03:58:53,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:53,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:53,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229068401] [2024-10-14 03:58:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229068401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:58:53,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596014827] [2024-10-14 03:58:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:53,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:53,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:53,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:53,883 INFO L87 Difference]: Start difference. First operand 2819 states and 4068 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:54,052 INFO L93 Difference]: Finished difference Result 10241 states and 14972 transitions. [2024-10-14 03:58:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:58:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-14 03:58:54,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:54,058 INFO L225 Difference]: With dead ends: 10241 [2024-10-14 03:58:54,058 INFO L226 Difference]: Without dead ends: 7530 [2024-10-14 03:58:54,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:54,062 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 926 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:54,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 340 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:54,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7530 states. [2024-10-14 03:58:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7530 to 6028. [2024-10-14 03:58:54,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6028 states, 6027 states have (on average 1.446656711465074) internal successors, (8719), 6027 states have internal predecessors, (8719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 8719 transitions. [2024-10-14 03:58:54,112 INFO L78 Accepts]: Start accepts. Automaton has 6028 states and 8719 transitions. Word has length 116 [2024-10-14 03:58:54,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:54,113 INFO L471 AbstractCegarLoop]: Abstraction has 6028 states and 8719 transitions. [2024-10-14 03:58:54,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 6028 states and 8719 transitions. [2024-10-14 03:58:54,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:58:54,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:54,114 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:54,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 03:58:54,114 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:54,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:54,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1768744760, now seen corresponding path program 1 times [2024-10-14 03:58:54,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:54,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057939479] [2024-10-14 03:58:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:54,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:54,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:54,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057939479] [2024-10-14 03:58:54,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057939479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:54,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:54,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:58:54,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650165423] [2024-10-14 03:58:54,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:54,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:54,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:54,204 INFO L87 Difference]: Start difference. First operand 6028 states and 8719 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:54,402 INFO L93 Difference]: Finished difference Result 19868 states and 28925 transitions. [2024-10-14 03:58:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:58:54,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-14 03:58:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:54,413 INFO L225 Difference]: With dead ends: 19868 [2024-10-14 03:58:54,413 INFO L226 Difference]: Without dead ends: 13948 [2024-10-14 03:58:54,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:54,419 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 841 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:54,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 338 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:54,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13948 states. [2024-10-14 03:58:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13948 to 12946. [2024-10-14 03:58:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12946 states, 12945 states have (on average 1.446195442255697) internal successors, (18721), 12945 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12946 states to 12946 states and 18721 transitions. [2024-10-14 03:58:54,531 INFO L78 Accepts]: Start accepts. Automaton has 12946 states and 18721 transitions. Word has length 116 [2024-10-14 03:58:54,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:54,532 INFO L471 AbstractCegarLoop]: Abstraction has 12946 states and 18721 transitions. [2024-10-14 03:58:54,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 12946 states and 18721 transitions. [2024-10-14 03:58:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:58:54,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:54,533 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:54,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 03:58:54,533 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:54,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash 155045804, now seen corresponding path program 1 times [2024-10-14 03:58:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996805321] [2024-10-14 03:58:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:54,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:54,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996805321] [2024-10-14 03:58:54,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996805321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:54,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:54,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:58:54,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759259662] [2024-10-14 03:58:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:54,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:54,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:54,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:54,679 INFO L87 Difference]: Start difference. First operand 12946 states and 18721 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:54,929 INFO L93 Difference]: Finished difference Result 48422 states and 70531 transitions. [2024-10-14 03:58:54,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:58:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-14 03:58:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:54,966 INFO L225 Difference]: With dead ends: 48422 [2024-10-14 03:58:54,967 INFO L226 Difference]: Without dead ends: 35584 [2024-10-14 03:58:54,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:58:54,985 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 1011 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:54,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 342 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:58:55,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35584 states. [2024-10-14 03:58:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35584 to 27782. [2024-10-14 03:58:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27782 states, 27781 states have (on average 1.4443324574349377) internal successors, (40125), 27781 states have internal predecessors, (40125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27782 states to 27782 states and 40125 transitions. [2024-10-14 03:58:55,281 INFO L78 Accepts]: Start accepts. Automaton has 27782 states and 40125 transitions. Word has length 116 [2024-10-14 03:58:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:55,281 INFO L471 AbstractCegarLoop]: Abstraction has 27782 states and 40125 transitions. [2024-10-14 03:58:55,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 27782 states and 40125 transitions. [2024-10-14 03:58:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:58:55,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:55,282 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:55,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 03:58:55,282 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:55,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash 214642470, now seen corresponding path program 1 times [2024-10-14 03:58:55,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:55,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595358734] [2024-10-14 03:58:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:55,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595358734] [2024-10-14 03:58:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595358734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:55,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:55,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:58:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648591322] [2024-10-14 03:58:55,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:55,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:58:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:55,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:58:55,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:58:55,434 INFO L87 Difference]: Start difference. First operand 27782 states and 40125 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:55,747 INFO L93 Difference]: Finished difference Result 63033 states and 91169 transitions. [2024-10-14 03:58:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:58:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-14 03:58:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:55,785 INFO L225 Difference]: With dead ends: 63033 [2024-10-14 03:58:55,785 INFO L226 Difference]: Without dead ends: 35359 [2024-10-14 03:58:55,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:58:55,810 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 736 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:55,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 431 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:58:55,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35359 states. [2024-10-14 03:58:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35359 to 29663. [2024-10-14 03:58:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29663 states, 29662 states have (on average 1.437293506843773) internal successors, (42633), 29662 states have internal predecessors, (42633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29663 states to 29663 states and 42633 transitions. [2024-10-14 03:58:56,099 INFO L78 Accepts]: Start accepts. Automaton has 29663 states and 42633 transitions. Word has length 116 [2024-10-14 03:58:56,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:56,099 INFO L471 AbstractCegarLoop]: Abstraction has 29663 states and 42633 transitions. [2024-10-14 03:58:56,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 29663 states and 42633 transitions. [2024-10-14 03:58:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 03:58:56,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:56,105 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:56,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 03:58:56,106 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:56,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash -561689225, now seen corresponding path program 1 times [2024-10-14 03:58:56,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:56,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010639843] [2024-10-14 03:58:56,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:56,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-14 03:58:56,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:56,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010639843] [2024-10-14 03:58:56,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010639843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:56,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:56,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:56,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791807534] [2024-10-14 03:58:56,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:56,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:56,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:56,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:56,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:56,236 INFO L87 Difference]: Start difference. First operand 29663 states and 42633 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:56,332 INFO L93 Difference]: Finished difference Result 57099 states and 81923 transitions. [2024-10-14 03:58:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 143 [2024-10-14 03:58:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:56,362 INFO L225 Difference]: With dead ends: 57099 [2024-10-14 03:58:56,362 INFO L226 Difference]: Without dead ends: 27550 [2024-10-14 03:58:56,383 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 [2024-10-14 03:58:56,384 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 77 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:56,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 381 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:56,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27550 states. [2024-10-14 03:58:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27550 to 26918. [2024-10-14 03:58:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26918 states, 26917 states have (on average 1.42560463647509) internal successors, (38373), 26917 states have internal predecessors, (38373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26918 states to 26918 states and 38373 transitions. [2024-10-14 03:58:56,625 INFO L78 Accepts]: Start accepts. Automaton has 26918 states and 38373 transitions. Word has length 143 [2024-10-14 03:58:56,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:56,625 INFO L471 AbstractCegarLoop]: Abstraction has 26918 states and 38373 transitions. [2024-10-14 03:58:56,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 26918 states and 38373 transitions. [2024-10-14 03:58:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 03:58:56,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:56,629 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:56,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 03:58:56,630 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:56,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash -386665244, now seen corresponding path program 1 times [2024-10-14 03:58:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:56,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479969867] [2024-10-14 03:58:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:56,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 03:58:56,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479969867] [2024-10-14 03:58:56,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479969867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:56,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:56,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587952366] [2024-10-14 03:58:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:56,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:56,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:56,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:56,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:56,707 INFO L87 Difference]: Start difference. First operand 26918 states and 38373 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:56,856 INFO L93 Difference]: Finished difference Result 51630 states and 73431 transitions. [2024-10-14 03:58:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 144 [2024-10-14 03:58:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:56,879 INFO L225 Difference]: With dead ends: 51630 [2024-10-14 03:58:56,879 INFO L226 Difference]: Without dead ends: 24820 [2024-10-14 03:58:56,895 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 [2024-10-14 03:58:56,895 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 70 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:56,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24820 states. [2024-10-14 03:58:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24820 to 24218. [2024-10-14 03:58:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24218 states, 24217 states have (on average 1.4111161580707767) internal successors, (34173), 24217 states have internal predecessors, (34173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24218 states to 24218 states and 34173 transitions. [2024-10-14 03:58:57,097 INFO L78 Accepts]: Start accepts. Automaton has 24218 states and 34173 transitions. Word has length 144 [2024-10-14 03:58:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:57,097 INFO L471 AbstractCegarLoop]: Abstraction has 24218 states and 34173 transitions. [2024-10-14 03:58:57,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 24218 states and 34173 transitions. [2024-10-14 03:58:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 03:58:57,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:57,101 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:57,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 03:58:57,101 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:57,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash 208898512, now seen corresponding path program 1 times [2024-10-14 03:58:57,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:57,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450284278] [2024-10-14 03:58:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 03:58:57,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:57,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450284278] [2024-10-14 03:58:57,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450284278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:57,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:57,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:57,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095353863] [2024-10-14 03:58:57,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:57,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:57,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:57,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:57,223 INFO L87 Difference]: Start difference. First operand 24218 states and 34173 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:57,305 INFO L93 Difference]: Finished difference Result 46230 states and 65031 transitions. [2024-10-14 03:58:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:57,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 145 [2024-10-14 03:58:57,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:57,327 INFO L225 Difference]: With dead ends: 46230 [2024-10-14 03:58:57,328 INFO L226 Difference]: Without dead ends: 22120 [2024-10-14 03:58:57,344 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 [2024-10-14 03:58:57,345 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 63 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:57,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:57,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22120 states. [2024-10-14 03:58:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22120 to 21518. [2024-10-14 03:58:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21518 states, 21517 states have (on average 1.3929915880466608) internal successors, (29973), 21517 states have internal predecessors, (29973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21518 states to 21518 states and 29973 transitions. [2024-10-14 03:58:57,706 INFO L78 Accepts]: Start accepts. Automaton has 21518 states and 29973 transitions. Word has length 145 [2024-10-14 03:58:57,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:57,706 INFO L471 AbstractCegarLoop]: Abstraction has 21518 states and 29973 transitions. [2024-10-14 03:58:57,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,707 INFO L276 IsEmpty]: Start isEmpty. Operand 21518 states and 29973 transitions. [2024-10-14 03:58:57,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 03:58:57,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:57,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:57,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 03:58:57,709 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:57,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:57,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1426482543, now seen corresponding path program 1 times [2024-10-14 03:58:57,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:57,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551795363] [2024-10-14 03:58:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:57,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:58:57,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:57,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551795363] [2024-10-14 03:58:57,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551795363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:58:57,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:58:57,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:58:57,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607387731] [2024-10-14 03:58:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:58:57,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:58:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:58:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:58:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:58:57,832 INFO L87 Difference]: Start difference. First operand 21518 states and 29973 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:57,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:58:57,959 INFO L93 Difference]: Finished difference Result 62138 states and 86087 transitions. [2024-10-14 03:58:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:58:57,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 146 [2024-10-14 03:58:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:58:58,001 INFO L225 Difference]: With dead ends: 62138 [2024-10-14 03:58:58,001 INFO L226 Difference]: Without dead ends: 40728 [2024-10-14 03:58:58,023 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 [2024-10-14 03:58:58,023 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 56 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:58:58,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:58:58,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40728 states. [2024-10-14 03:58:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40728 to 37926. [2024-10-14 03:58:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37926 states, 37925 states have (on average 1.377165458141068) internal successors, (52229), 37925 states have internal predecessors, (52229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37926 states to 37926 states and 52229 transitions. [2024-10-14 03:58:58,533 INFO L78 Accepts]: Start accepts. Automaton has 37926 states and 52229 transitions. Word has length 146 [2024-10-14 03:58:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:58:58,533 INFO L471 AbstractCegarLoop]: Abstraction has 37926 states and 52229 transitions. [2024-10-14 03:58:58,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:58:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 37926 states and 52229 transitions. [2024-10-14 03:58:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 03:58:58,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:58:58,537 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:58:58,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 03:58:58,537 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:58:58,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:58:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1319753617, now seen corresponding path program 1 times [2024-10-14 03:58:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:58:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595322010] [2024-10-14 03:58:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:58,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:58:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:58:59,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:58:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595322010] [2024-10-14 03:58:59,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595322010] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:58:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957167101] [2024-10-14 03:58:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:58:59,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:58:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:58:59,094 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) [2024-10-14 03:58:59,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:58:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:58:59,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 03:58:59,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:59:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:00,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:59:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957167101] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:59:01,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:59:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-10-14 03:59:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943458168] [2024-10-14 03:59:01,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:59:01,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 03:59:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:59:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 03:59:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-10-14 03:59:01,486 INFO L87 Difference]: Start difference. First operand 37926 states and 52229 transitions. Second operand has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:59:09,283 INFO L93 Difference]: Finished difference Result 311957 states and 424054 transitions. [2024-10-14 03:59:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-10-14 03:59:09,283 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 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 147 [2024-10-14 03:59:09,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:59:09,775 INFO L225 Difference]: With dead ends: 311957 [2024-10-14 03:59:09,775 INFO L226 Difference]: Without dead ends: 274139 [2024-10-14 03:59:09,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7420 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3809, Invalid=20683, Unknown=0, NotChecked=0, Total=24492 [2024-10-14 03:59:09,827 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 4626 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:59:09,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4626 Valid, 2252 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:59:09,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274139 states. [2024-10-14 03:59:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274139 to 185994. [2024-10-14 03:59:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185994 states, 185993 states have (on average 1.3667933739441807) internal successors, (254214), 185993 states have internal predecessors, (254214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185994 states to 185994 states and 254214 transitions. [2024-10-14 03:59:12,546 INFO L78 Accepts]: Start accepts. Automaton has 185994 states and 254214 transitions. Word has length 147 [2024-10-14 03:59:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:59:12,547 INFO L471 AbstractCegarLoop]: Abstraction has 185994 states and 254214 transitions. [2024-10-14 03:59:12,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 12.71875) internal successors, (407), 31 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 185994 states and 254214 transitions. [2024-10-14 03:59:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 03:59:12,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:59:12,559 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:59:12,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:59:12,759 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,SelfDestructingSolverStorable37 [2024-10-14 03:59:12,759 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:59:12,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:59:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1970884345, now seen corresponding path program 1 times [2024-10-14 03:59:12,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:59:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408950999] [2024-10-14 03:59:12,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:59:12,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:59:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:59:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:59:13,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408950999] [2024-10-14 03:59:13,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408950999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:59:13,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:59:13,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:59:13,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701908471] [2024-10-14 03:59:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:59:13,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:59:13,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:59:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:59:13,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:59:13,083 INFO L87 Difference]: Start difference. First operand 185994 states and 254214 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:59:13,893 INFO L93 Difference]: Finished difference Result 325486 states and 444397 transitions. [2024-10-14 03:59:13,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:59:13,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2024-10-14 03:59:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:59:14,078 INFO L225 Difference]: With dead ends: 325486 [2024-10-14 03:59:14,078 INFO L226 Difference]: Without dead ends: 139632 [2024-10-14 03:59:14,158 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 [2024-10-14 03:59:14,159 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 359 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 [2024-10-14 03:59:14,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 359 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:59:14,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139632 states. [2024-10-14 03:59:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139632 to 137330. [2024-10-14 03:59:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137330 states, 137329 states have (on average 1.3476978642529982) internal successors, (185078), 137329 states have internal predecessors, (185078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137330 states to 137330 states and 185078 transitions. [2024-10-14 03:59:16,276 INFO L78 Accepts]: Start accepts. Automaton has 137330 states and 185078 transitions. Word has length 147 [2024-10-14 03:59:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:59:16,276 INFO L471 AbstractCegarLoop]: Abstraction has 137330 states and 185078 transitions. [2024-10-14 03:59:16,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 137330 states and 185078 transitions. [2024-10-14 03:59:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 03:59:16,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:59:16,296 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:59:16,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 03:59:16,297 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:59:16,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:59:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash -94291714, now seen corresponding path program 1 times [2024-10-14 03:59:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:59:16,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692194686] [2024-10-14 03:59:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:59:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:59:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:59:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:16,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:59:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692194686] [2024-10-14 03:59:16,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692194686] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:59:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953584452] [2024-10-14 03:59:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:59:16,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:59:16,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:59:16,716 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) [2024-10-14 03:59:16,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:59:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:59:16,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 03:59:16,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:59:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:17,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:59:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:59:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953584452] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:59:18,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:59:18,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-10-14 03:59:18,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577139715] [2024-10-14 03:59:18,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:59:18,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 03:59:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:59:18,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 03:59:18,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2024-10-14 03:59:18,684 INFO L87 Difference]: Start difference. First operand 137330 states and 185078 transitions. Second operand has 30 states, 30 states have (on average 13.733333333333333) internal successors, (412), 29 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:59:28,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:59:28,892 INFO L93 Difference]: Finished difference Result 1404991 states and 1885052 transitions. [2024-10-14 03:59:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2024-10-14 03:59:28,897 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.733333333333333) internal successors, (412), 29 states have internal predecessors, (412), 0 states have call successors, (0), 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 148 [2024-10-14 03:59:28,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:59:30,773 INFO L225 Difference]: With dead ends: 1404991 [2024-10-14 03:59:30,773 INFO L226 Difference]: Without dead ends: 1268011 [2024-10-14 03:59:31,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7354 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3149, Invalid=20107, Unknown=0, NotChecked=0, Total=23256 [2024-10-14 03:59:31,023 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 6789 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 3920 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6789 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:59:31,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6789 Valid, 2939 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3920 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 03:59:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268011 states.