./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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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-var-start-time.4.1.ufo.BOUNDED-8.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 54dd2c42579f0de559de8ea2b74ae8f2f84f80b7530dd7d24e9994fd7ce14291 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:21:21,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:21:21,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:21:21,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:21:21,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:21:21,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:21:21,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:21:21,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:21:21,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:21:21,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:21:21,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:21:21,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:21:21,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:21:21,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:21:21,753 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:21:21,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:21:21,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:21:21,754 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:21:21,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:21:21,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:21:21,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:21:21,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:21:21,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:21:21,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:21:21,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:21:21,757 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:21:21,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:21:21,758 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:21:21,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:21:21,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:21:21,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:21:21,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:21:21,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:21:21,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:21:21,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:21:21,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:21:21,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:21:21,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:21:21,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:21:21,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:21:21,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:21:21,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:21:21,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54dd2c42579f0de559de8ea2b74ae8f2f84f80b7530dd7d24e9994fd7ce14291 [2024-10-12 20:21:22,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:21:22,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:21:22,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:21:22,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:21:22,043 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:21:22,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:21:23,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:21:23,752 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:21:23,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:21:23,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4575519ef/23fbfcbee69c4fb2b0e4c80e456e0fb2/FLAG07a51a544 [2024-10-12 20:21:24,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4575519ef/23fbfcbee69c4fb2b0e4c80e456e0fb2 [2024-10-12 20:21:24,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:21:24,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:21:24,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:21:24,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:21:24,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:21:24,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4c3858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24, skipping insertion in model container [2024-10-12 20:21:24,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:21:24,503 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-12 20:21:24,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:21:24,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:21:24,609 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-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-12 20:21:24,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:21:24,669 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:21:24,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24 WrapperNode [2024-10-12 20:21:24,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:21:24,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:21:24,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:21:24,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:21:24,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,733 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 738 [2024-10-12 20:21:24,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:21:24,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:21:24,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:21:24,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:21:24,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,770 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]. [2024-10-12 20:21:24,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:21:24,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:21:24,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:21:24,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:21:24,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (1/1) ... [2024-10-12 20:21:24,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:21:24,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:21:24,851 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) [2024-10-12 20:21:24,854 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 [2024-10-12 20:21:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:21:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:21:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:21:24,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:21:25,059 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:21:25,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:21:25,792 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-12 20:21:25,792 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:21:25,842 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:21:25,842 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:21:25,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:21:25 BoogieIcfgContainer [2024-10-12 20:21:25,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:21:25,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:21:25,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:21:25,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:21:25,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:21:24" (1/3) ... [2024-10-12 20:21:25,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd275fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:21:25, skipping insertion in model container [2024-10-12 20:21:25,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:24" (2/3) ... [2024-10-12 20:21:25,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd275fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:21:25, skipping insertion in model container [2024-10-12 20:21:25,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:21:25" (3/3) ... [2024-10-12 20:21:25,854 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:21:25,872 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:21:25,872 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:21:25,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:21:25,944 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;@799aad9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:21:25,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:21:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 20:21:25,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:25,963 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] [2024-10-12 20:21:25,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:25,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:25,970 INFO L85 PathProgramCache]: Analyzing trace with hash -303443606, now seen corresponding path program 1 times [2024-10-12 20:21:25,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:25,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018196675] [2024-10-12 20:21:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:26,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:26,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018196675] [2024-10-12 20:21:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018196675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:26,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331681797] [2024-10-12 20:21:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:26,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:26,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:26,687 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:26,921 INFO L93 Difference]: Finished difference Result 633 states and 1029 transitions. [2024-10-12 20:21:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:26,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-12 20:21:26,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:26,942 INFO L225 Difference]: With dead ends: 633 [2024-10-12 20:21:26,942 INFO L226 Difference]: Without dead ends: 540 [2024-10-12 20:21:26,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:26,951 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 1601 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:26,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1097 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-12 20:21:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 274. [2024-10-12 20:21:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.5054945054945055) internal successors, (411), 273 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:27,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 411 transitions. [2024-10-12 20:21:27,027 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 411 transitions. Word has length 64 [2024-10-12 20:21:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:27,028 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 411 transitions. [2024-10-12 20:21:27,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 411 transitions. [2024-10-12 20:21:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 20:21:27,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:27,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:27,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:21:27,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:27,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1095782796, now seen corresponding path program 1 times [2024-10-12 20:21:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:27,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267015943] [2024-10-12 20:21:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:27,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:27,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267015943] [2024-10-12 20:21:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267015943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:27,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:27,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:27,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959631159] [2024-10-12 20:21:27,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:27,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:27,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:27,366 INFO L87 Difference]: Start difference. First operand 274 states and 411 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:27,537 INFO L93 Difference]: Finished difference Result 1012 states and 1555 transitions. [2024-10-12 20:21:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-12 20:21:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:27,541 INFO L225 Difference]: With dead ends: 1012 [2024-10-12 20:21:27,542 INFO L226 Difference]: Without dead ends: 800 [2024-10-12 20:21:27,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:27,544 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 836 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:27,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 848 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-12 20:21:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2024-10-12 20:21:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.5258511979823455) internal successors, (1210), 793 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1210 transitions. [2024-10-12 20:21:27,592 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1210 transitions. Word has length 65 [2024-10-12 20:21:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:27,593 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1210 transitions. [2024-10-12 20:21:27,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1210 transitions. [2024-10-12 20:21:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:21:27,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:27,600 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] [2024-10-12 20:21:27,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:21:27,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:27,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1595686128, now seen corresponding path program 1 times [2024-10-12 20:21:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563381770] [2024-10-12 20:21:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:27,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:27,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:27,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563381770] [2024-10-12 20:21:27,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563381770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:27,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:27,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:27,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128472378] [2024-10-12 20:21:27,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:27,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:27,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:27,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:27,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:27,827 INFO L87 Difference]: Start difference. First operand 794 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:28,127 INFO L93 Difference]: Finished difference Result 2126 states and 3280 transitions. [2024-10-12 20:21:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:28,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:21:28,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:28,134 INFO L225 Difference]: With dead ends: 2126 [2024-10-12 20:21:28,135 INFO L226 Difference]: Without dead ends: 1382 [2024-10-12 20:21:28,138 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 [2024-10-12 20:21:28,139 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 998 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:28,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 242 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:21:28,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-10-12 20:21:28,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-10-12 20:21:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.5337200870195795) internal successors, (2115), 1379 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2115 transitions. [2024-10-12 20:21:28,178 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2115 transitions. Word has length 66 [2024-10-12 20:21:28,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:28,179 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2115 transitions. [2024-10-12 20:21:28,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2115 transitions. [2024-10-12 20:21:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:21:28,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:28,181 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] [2024-10-12 20:21:28,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:21:28,182 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1582885390, now seen corresponding path program 1 times [2024-10-12 20:21:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160244039] [2024-10-12 20:21:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:28,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:28,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:28,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160244039] [2024-10-12 20:21:28,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160244039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:28,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:28,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:28,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587090045] [2024-10-12 20:21:28,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:28,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:28,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:28,319 INFO L87 Difference]: Start difference. First operand 1380 states and 2115 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:28,568 INFO L93 Difference]: Finished difference Result 3712 states and 5741 transitions. [2024-10-12 20:21:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:28,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:21:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:28,580 INFO L225 Difference]: With dead ends: 3712 [2024-10-12 20:21:28,581 INFO L226 Difference]: Without dead ends: 2432 [2024-10-12 20:21:28,585 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 [2024-10-12 20:21:28,588 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:28,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 248 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:21:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-12 20:21:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-10-12 20:21:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.53684643886373) internal successors, (3733), 2429 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3733 transitions. [2024-10-12 20:21:28,657 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3733 transitions. Word has length 66 [2024-10-12 20:21:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:28,657 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3733 transitions. [2024-10-12 20:21:28,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3733 transitions. [2024-10-12 20:21:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:21:28,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:28,660 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] [2024-10-12 20:21:28,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:21:28,660 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:28,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash 441008545, now seen corresponding path program 1 times [2024-10-12 20:21:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:28,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110037178] [2024-10-12 20:21:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:28,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:28,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110037178] [2024-10-12 20:21:28,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110037178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:28,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:28,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:28,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526373] [2024-10-12 20:21:28,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:28,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:28,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:28,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:28,861 INFO L87 Difference]: Start difference. First operand 2430 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:29,106 INFO L93 Difference]: Finished difference Result 6933 states and 10704 transitions. [2024-10-12 20:21:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:29,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:21:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:29,126 INFO L225 Difference]: With dead ends: 6933 [2024-10-12 20:21:29,127 INFO L226 Difference]: Without dead ends: 4576 [2024-10-12 20:21:29,133 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 [2024-10-12 20:21:29,135 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 950 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:29,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 246 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:21:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-10-12 20:21:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4574. [2024-10-12 20:21:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.5344412858080034) internal successors, (7017), 4573 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7017 transitions. [2024-10-12 20:21:29,245 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7017 transitions. Word has length 66 [2024-10-12 20:21:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:29,246 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 7017 transitions. [2024-10-12 20:21:29,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7017 transitions. [2024-10-12 20:21:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:21:29,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:29,249 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] [2024-10-12 20:21:29,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:21:29,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:29,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1544480193, now seen corresponding path program 1 times [2024-10-12 20:21:29,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:29,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319402513] [2024-10-12 20:21:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:29,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:29,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:29,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319402513] [2024-10-12 20:21:29,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319402513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:29,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:29,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:29,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94246212] [2024-10-12 20:21:29,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:29,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:29,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:29,386 INFO L87 Difference]: Start difference. First operand 4574 states and 7017 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:29,680 INFO L93 Difference]: Finished difference Result 13472 states and 20724 transitions. [2024-10-12 20:21:29,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:29,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:21:29,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:29,716 INFO L225 Difference]: With dead ends: 13472 [2024-10-12 20:21:29,717 INFO L226 Difference]: Without dead ends: 8932 [2024-10-12 20:21:29,728 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 [2024-10-12 20:21:29,729 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1010 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:29,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 240 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:21:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2024-10-12 20:21:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 8930. [2024-10-12 20:21:29,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8929 states have (on average 1.5264867286370254) internal successors, (13630), 8929 states have internal predecessors, (13630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 13630 transitions. [2024-10-12 20:21:29,919 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 13630 transitions. Word has length 66 [2024-10-12 20:21:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:29,919 INFO L471 AbstractCegarLoop]: Abstraction has 8930 states and 13630 transitions. [2024-10-12 20:21:29,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 13630 transitions. [2024-10-12 20:21:29,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:21:29,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:29,922 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] [2024-10-12 20:21:29,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:21:29,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:29,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:29,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1843096928, now seen corresponding path program 1 times [2024-10-12 20:21:29,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:29,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271780172] [2024-10-12 20:21:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:29,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:30,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:30,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271780172] [2024-10-12 20:21:30,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271780172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:30,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:30,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:30,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638300209] [2024-10-12 20:21:30,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:30,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:30,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:30,241 INFO L87 Difference]: Start difference. First operand 8930 states and 13630 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:30,300 INFO L93 Difference]: Finished difference Result 9188 states and 14015 transitions. [2024-10-12 20:21:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-12 20:21:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:30,344 INFO L225 Difference]: With dead ends: 9188 [2024-10-12 20:21:30,345 INFO L226 Difference]: Without dead ends: 9186 [2024-10-12 20:21:30,350 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 [2024-10-12 20:21:30,351 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:30,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:30,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2024-10-12 20:21:30,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 9186. [2024-10-12 20:21:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 1.5118127381600435) internal successors, (13886), 9185 states have internal predecessors, (13886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 13886 transitions. [2024-10-12 20:21:30,604 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 13886 transitions. Word has length 67 [2024-10-12 20:21:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:30,605 INFO L471 AbstractCegarLoop]: Abstraction has 9186 states and 13886 transitions. [2024-10-12 20:21:30,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 13886 transitions. [2024-10-12 20:21:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:21:30,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:30,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:30,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:21:30,611 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:30,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1022976121, now seen corresponding path program 1 times [2024-10-12 20:21:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:30,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695563833] [2024-10-12 20:21:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:30,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:30,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695563833] [2024-10-12 20:21:30,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695563833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:30,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:30,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:30,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615300317] [2024-10-12 20:21:30,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:30,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:21:30,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:30,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:21:30,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:21:30,769 INFO L87 Difference]: Start difference. First operand 9186 states and 13886 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:30,892 INFO L93 Difference]: Finished difference Result 25030 states and 37772 transitions. [2024-10-12 20:21:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:21:30,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-12 20:21:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:30,927 INFO L225 Difference]: With dead ends: 25030 [2024-10-12 20:21:30,927 INFO L226 Difference]: Without dead ends: 16452 [2024-10-12 20:21:30,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:21:30,942 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 201 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:30,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 608 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:30,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16452 states. [2024-10-12 20:21:31,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16452 to 16450. [2024-10-12 20:21:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16450 states, 16449 states have (on average 1.497112286461183) internal successors, (24626), 16449 states have internal predecessors, (24626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16450 states to 16450 states and 24626 transitions. [2024-10-12 20:21:31,299 INFO L78 Accepts]: Start accepts. Automaton has 16450 states and 24626 transitions. Word has length 68 [2024-10-12 20:21:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:31,300 INFO L471 AbstractCegarLoop]: Abstraction has 16450 states and 24626 transitions. [2024-10-12 20:21:31,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 16450 states and 24626 transitions. [2024-10-12 20:21:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:31,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:31,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:31,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:21:31,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:31,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash 727982169, now seen corresponding path program 1 times [2024-10-12 20:21:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472844166] [2024-10-12 20:21:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:31,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:31,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472844166] [2024-10-12 20:21:31,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472844166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:31,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:31,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264014206] [2024-10-12 20:21:31,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:31,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:31,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:31,365 INFO L87 Difference]: Start difference. First operand 16450 states and 24626 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:31,540 INFO L93 Difference]: Finished difference Result 29077 states and 43494 transitions. [2024-10-12 20:21:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:31,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:31,604 INFO L225 Difference]: With dead ends: 29077 [2024-10-12 20:21:31,604 INFO L226 Difference]: Without dead ends: 20047 [2024-10-12 20:21:31,612 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 [2024-10-12 20:21:31,613 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:31,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 465 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20047 states. [2024-10-12 20:21:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20047 to 19822. [2024-10-12 20:21:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19822 states, 19821 states have (on average 1.4736390696735786) internal successors, (29209), 19821 states have internal predecessors, (29209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19822 states to 19822 states and 29209 transitions. [2024-10-12 20:21:32,008 INFO L78 Accepts]: Start accepts. Automaton has 19822 states and 29209 transitions. Word has length 69 [2024-10-12 20:21:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:32,009 INFO L471 AbstractCegarLoop]: Abstraction has 19822 states and 29209 transitions. [2024-10-12 20:21:32,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 19822 states and 29209 transitions. [2024-10-12 20:21:32,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:32,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:32,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:32,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:21:32,013 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:32,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1778498824, now seen corresponding path program 1 times [2024-10-12 20:21:32,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:32,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401511668] [2024-10-12 20:21:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:32,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:32,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401511668] [2024-10-12 20:21:32,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401511668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:32,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:32,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288743907] [2024-10-12 20:21:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:32,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:32,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:32,098 INFO L87 Difference]: Start difference. First operand 19822 states and 29209 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:32,265 INFO L93 Difference]: Finished difference Result 26900 states and 39488 transitions. [2024-10-12 20:21:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:32,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:32,301 INFO L225 Difference]: With dead ends: 26900 [2024-10-12 20:21:32,302 INFO L226 Difference]: Without dead ends: 20311 [2024-10-12 20:21:32,316 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 [2024-10-12 20:21:32,317 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:32,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 463 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20311 states. [2024-10-12 20:21:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20311 to 18377. [2024-10-12 20:21:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18377 states, 18376 states have (on average 1.4465063125816282) internal successors, (26581), 18376 states have internal predecessors, (26581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18377 states to 18377 states and 26581 transitions. [2024-10-12 20:21:32,657 INFO L78 Accepts]: Start accepts. Automaton has 18377 states and 26581 transitions. Word has length 69 [2024-10-12 20:21:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:32,658 INFO L471 AbstractCegarLoop]: Abstraction has 18377 states and 26581 transitions. [2024-10-12 20:21:32,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 18377 states and 26581 transitions. [2024-10-12 20:21:32,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:32,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:32,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:32,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:21:32,661 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:32,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:32,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1077276120, now seen corresponding path program 1 times [2024-10-12 20:21:32,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303380976] [2024-10-12 20:21:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:32,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303380976] [2024-10-12 20:21:32,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303380976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:32,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:32,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282477931] [2024-10-12 20:21:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:32,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:32,829 INFO L87 Difference]: Start difference. First operand 18377 states and 26581 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:33,128 INFO L93 Difference]: Finished difference Result 36535 states and 53220 transitions. [2024-10-12 20:21:33,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:33,187 INFO L225 Difference]: With dead ends: 36535 [2024-10-12 20:21:33,187 INFO L226 Difference]: Without dead ends: 29181 [2024-10-12 20:21:33,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:33,202 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1114 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:33,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1332 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29181 states. [2024-10-12 20:21:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29181 to 24795. [2024-10-12 20:21:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24795 states, 24794 states have (on average 1.4470033072517545) internal successors, (35877), 24794 states have internal predecessors, (35877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24795 states to 24795 states and 35877 transitions. [2024-10-12 20:21:33,766 INFO L78 Accepts]: Start accepts. Automaton has 24795 states and 35877 transitions. Word has length 69 [2024-10-12 20:21:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:33,766 INFO L471 AbstractCegarLoop]: Abstraction has 24795 states and 35877 transitions. [2024-10-12 20:21:33,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 24795 states and 35877 transitions. [2024-10-12 20:21:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:33,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:33,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:33,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:21:33,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:33,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash -736167559, now seen corresponding path program 1 times [2024-10-12 20:21:33,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:33,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936992084] [2024-10-12 20:21:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:33,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:33,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:33,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936992084] [2024-10-12 20:21:33,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936992084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:33,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:33,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:33,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432150050] [2024-10-12 20:21:33,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:33,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:33,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:33,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:33,833 INFO L87 Difference]: Start difference. First operand 24795 states and 35877 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:34,173 INFO L93 Difference]: Finished difference Result 64326 states and 93099 transitions. [2024-10-12 20:21:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:34,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:34,272 INFO L225 Difference]: With dead ends: 64326 [2024-10-12 20:21:34,272 INFO L226 Difference]: Without dead ends: 42804 [2024-10-12 20:21:34,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:34,306 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 173 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:34,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 463 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42804 states. [2024-10-12 20:21:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42804 to 42712. [2024-10-12 20:21:34,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42712 states, 42711 states have (on average 1.433588536910866) internal successors, (61230), 42711 states have internal predecessors, (61230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42712 states to 42712 states and 61230 transitions. [2024-10-12 20:21:35,047 INFO L78 Accepts]: Start accepts. Automaton has 42712 states and 61230 transitions. Word has length 69 [2024-10-12 20:21:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:35,047 INFO L471 AbstractCegarLoop]: Abstraction has 42712 states and 61230 transitions. [2024-10-12 20:21:35,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 42712 states and 61230 transitions. [2024-10-12 20:21:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:35,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:35,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:35,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:21:35,055 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:35,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1508312264, now seen corresponding path program 1 times [2024-10-12 20:21:35,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:35,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478891254] [2024-10-12 20:21:35,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:35,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:35,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:35,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478891254] [2024-10-12 20:21:35,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478891254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:35,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:35,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:35,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563124493] [2024-10-12 20:21:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:35,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:35,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:35,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:35,222 INFO L87 Difference]: Start difference. First operand 42712 states and 61230 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:35,627 INFO L93 Difference]: Finished difference Result 60346 states and 86847 transitions. [2024-10-12 20:21:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:35,726 INFO L225 Difference]: With dead ends: 60346 [2024-10-12 20:21:35,726 INFO L226 Difference]: Without dead ends: 57374 [2024-10-12 20:21:35,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:35,756 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 1121 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:35,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 1181 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:21:35,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57374 states. [2024-10-12 20:21:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57374 to 45652. [2024-10-12 20:21:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45652 states, 45651 states have (on average 1.4336159120282141) internal successors, (65446), 45651 states have internal predecessors, (65446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45652 states to 45652 states and 65446 transitions. [2024-10-12 20:21:36,794 INFO L78 Accepts]: Start accepts. Automaton has 45652 states and 65446 transitions. Word has length 69 [2024-10-12 20:21:36,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:36,794 INFO L471 AbstractCegarLoop]: Abstraction has 45652 states and 65446 transitions. [2024-10-12 20:21:36,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 45652 states and 65446 transitions. [2024-10-12 20:21:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:36,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:36,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:36,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:21:36,802 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:36,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash -567435143, now seen corresponding path program 1 times [2024-10-12 20:21:36,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:36,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3410697] [2024-10-12 20:21:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:36,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:36,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:36,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3410697] [2024-10-12 20:21:36,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3410697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:36,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:36,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:36,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339714686] [2024-10-12 20:21:36,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:36,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:36,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:36,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:36,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:36,955 INFO L87 Difference]: Start difference. First operand 45652 states and 65446 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:37,306 INFO L93 Difference]: Finished difference Result 66852 states and 96245 transitions. [2024-10-12 20:21:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:37,386 INFO L225 Difference]: With dead ends: 66852 [2024-10-12 20:21:37,387 INFO L226 Difference]: Without dead ends: 60240 [2024-10-12 20:21:37,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:37,411 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1028 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:37,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1371 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60240 states. [2024-10-12 20:21:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60240 to 52218. [2024-10-12 20:21:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52218 states, 52217 states have (on average 1.433632724974625) internal successors, (74860), 52217 states have internal predecessors, (74860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52218 states to 52218 states and 74860 transitions. [2024-10-12 20:21:38,299 INFO L78 Accepts]: Start accepts. Automaton has 52218 states and 74860 transitions. Word has length 69 [2024-10-12 20:21:38,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:38,299 INFO L471 AbstractCegarLoop]: Abstraction has 52218 states and 74860 transitions. [2024-10-12 20:21:38,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 52218 states and 74860 transitions. [2024-10-12 20:21:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-12 20:21:38,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:38,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:38,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:21:38,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:38,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:38,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1772958041, now seen corresponding path program 1 times [2024-10-12 20:21:38,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319887105] [2024-10-12 20:21:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:38,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:38,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:38,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319887105] [2024-10-12 20:21:38,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319887105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:38,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:38,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656125352] [2024-10-12 20:21:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:38,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:38,768 INFO L87 Difference]: Start difference. First operand 52218 states and 74860 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:39,096 INFO L93 Difference]: Finished difference Result 82000 states and 118199 transitions. [2024-10-12 20:21:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:39,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-12 20:21:39,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:39,194 INFO L225 Difference]: With dead ends: 82000 [2024-10-12 20:21:39,194 INFO L226 Difference]: Without dead ends: 70430 [2024-10-12 20:21:39,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:39,227 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1122 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:39,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1304 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70430 states. [2024-10-12 20:21:39,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70430 to 61048. [2024-10-12 20:21:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61048 states, 61047 states have (on average 1.4345012858944748) internal successors, (87572), 61047 states have internal predecessors, (87572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61048 states to 61048 states and 87572 transitions. [2024-10-12 20:21:40,415 INFO L78 Accepts]: Start accepts. Automaton has 61048 states and 87572 transitions. Word has length 69 [2024-10-12 20:21:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:40,415 INFO L471 AbstractCegarLoop]: Abstraction has 61048 states and 87572 transitions. [2024-10-12 20:21:40,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 61048 states and 87572 transitions. [2024-10-12 20:21:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-12 20:21:40,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:40,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:40,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:21:40,423 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:40,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash -390496674, now seen corresponding path program 1 times [2024-10-12 20:21:40,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:40,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698144249] [2024-10-12 20:21:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:40,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:40,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698144249] [2024-10-12 20:21:40,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698144249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:40,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:40,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:40,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119584604] [2024-10-12 20:21:40,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:40,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:40,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:40,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:40,501 INFO L87 Difference]: Start difference. First operand 61048 states and 87572 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:40,955 INFO L93 Difference]: Finished difference Result 125553 states and 179234 transitions. [2024-10-12 20:21:40,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:40,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-12 20:21:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:41,089 INFO L225 Difference]: With dead ends: 125553 [2024-10-12 20:21:41,089 INFO L226 Difference]: Without dead ends: 68316 [2024-10-12 20:21:41,146 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 [2024-10-12 20:21:41,147 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 159 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:41,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 563 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68316 states. [2024-10-12 20:21:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68316 to 62535. [2024-10-12 20:21:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62535 states, 62534 states have (on average 1.3985991620558416) internal successors, (87460), 62534 states have internal predecessors, (87460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62535 states to 62535 states and 87460 transitions. [2024-10-12 20:21:42,210 INFO L78 Accepts]: Start accepts. Automaton has 62535 states and 87460 transitions. Word has length 72 [2024-10-12 20:21:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:42,210 INFO L471 AbstractCegarLoop]: Abstraction has 62535 states and 87460 transitions. [2024-10-12 20:21:42,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:42,210 INFO L276 IsEmpty]: Start isEmpty. Operand 62535 states and 87460 transitions. [2024-10-12 20:21:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 20:21:42,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:42,219 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] [2024-10-12 20:21:42,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:21:42,220 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:42,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:42,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1903153330, now seen corresponding path program 1 times [2024-10-12 20:21:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622033102] [2024-10-12 20:21:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:42,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:42,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:42,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622033102] [2024-10-12 20:21:42,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622033102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:42,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:42,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:42,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939544831] [2024-10-12 20:21:42,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:42,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:42,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:42,357 INFO L87 Difference]: Start difference. First operand 62535 states and 87460 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:43,683 INFO L93 Difference]: Finished difference Result 188772 states and 262434 transitions. [2024-10-12 20:21:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:21:43,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 [2024-10-12 20:21:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:44,023 INFO L225 Difference]: With dead ends: 188772 [2024-10-12 20:21:44,024 INFO L226 Difference]: Without dead ends: 165957 [2024-10-12 20:21:44,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:44,064 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1774 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:44,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 466 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:21:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165957 states. [2024-10-12 20:21:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165957 to 62651. [2024-10-12 20:21:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62651 states, 62650 states have (on average 1.39829209896249) internal successors, (87603), 62650 states have internal predecessors, (87603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62651 states to 62651 states and 87603 transitions. [2024-10-12 20:21:45,516 INFO L78 Accepts]: Start accepts. Automaton has 62651 states and 87603 transitions. Word has length 74 [2024-10-12 20:21:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:45,516 INFO L471 AbstractCegarLoop]: Abstraction has 62651 states and 87603 transitions. [2024-10-12 20:21:45,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 62651 states and 87603 transitions. [2024-10-12 20:21:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 20:21:45,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:45,525 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] [2024-10-12 20:21:45,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:21:45,525 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:45,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash -331835791, now seen corresponding path program 1 times [2024-10-12 20:21:45,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:45,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983757057] [2024-10-12 20:21:45,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:45,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:46,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983757057] [2024-10-12 20:21:46,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983757057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:46,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:46,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:46,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492153923] [2024-10-12 20:21:46,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:46,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:46,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:46,048 INFO L87 Difference]: Start difference. First operand 62651 states and 87603 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:47,082 INFO L93 Difference]: Finished difference Result 186239 states and 257736 transitions. [2024-10-12 20:21:47,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:21:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 [2024-10-12 20:21:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:47,364 INFO L225 Difference]: With dead ends: 186239 [2024-10-12 20:21:47,364 INFO L226 Difference]: Without dead ends: 163481 [2024-10-12 20:21:47,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:47,429 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1544 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:47,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 471 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:21:47,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163481 states. [2024-10-12 20:21:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163481 to 62879. [2024-10-12 20:21:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62879 states, 62878 states have (on average 1.3978975158242946) internal successors, (87897), 62878 states have internal predecessors, (87897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62879 states to 62879 states and 87897 transitions. [2024-10-12 20:21:49,107 INFO L78 Accepts]: Start accepts. Automaton has 62879 states and 87897 transitions. Word has length 74 [2024-10-12 20:21:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:49,107 INFO L471 AbstractCegarLoop]: Abstraction has 62879 states and 87897 transitions. [2024-10-12 20:21:49,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 62879 states and 87897 transitions. [2024-10-12 20:21:49,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 20:21:49,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:49,114 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] [2024-10-12 20:21:49,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:21:49,114 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:49,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:49,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1896213327, now seen corresponding path program 1 times [2024-10-12 20:21:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643828717] [2024-10-12 20:21:49,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:49,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:49,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:49,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643828717] [2024-10-12 20:21:49,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643828717] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:49,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:49,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:49,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988772198] [2024-10-12 20:21:49,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:49,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:49,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:49,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:49,304 INFO L87 Difference]: Start difference. First operand 62879 states and 87897 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:50,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:50,422 INFO L93 Difference]: Finished difference Result 154056 states and 212966 transitions. [2024-10-12 20:21:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:21:50,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 [2024-10-12 20:21:50,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:50,585 INFO L225 Difference]: With dead ends: 154056 [2024-10-12 20:21:50,585 INFO L226 Difference]: Without dead ends: 120019 [2024-10-12 20:21:50,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:50,639 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1262 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:50,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 392 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:21:50,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120019 states. [2024-10-12 20:21:51,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120019 to 62929. [2024-10-12 20:21:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62929 states, 62928 states have (on average 1.3977402745995424) internal successors, (87957), 62928 states have internal predecessors, (87957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62929 states to 62929 states and 87957 transitions. [2024-10-12 20:21:51,930 INFO L78 Accepts]: Start accepts. Automaton has 62929 states and 87957 transitions. Word has length 74 [2024-10-12 20:21:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:51,931 INFO L471 AbstractCegarLoop]: Abstraction has 62929 states and 87957 transitions. [2024-10-12 20:21:51,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 62929 states and 87957 transitions. [2024-10-12 20:21:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 20:21:51,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:51,938 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] [2024-10-12 20:21:51,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:21:51,939 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:51,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -97924719, now seen corresponding path program 1 times [2024-10-12 20:21:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:51,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328173928] [2024-10-12 20:21:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:52,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:52,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328173928] [2024-10-12 20:21:52,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328173928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:52,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:52,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:52,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664467248] [2024-10-12 20:21:52,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:52,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:52,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:52,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:52,078 INFO L87 Difference]: Start difference. First operand 62929 states and 87957 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:53,468 INFO L93 Difference]: Finished difference Result 149212 states and 205758 transitions. [2024-10-12 20:21:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:21:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 [2024-10-12 20:21:53,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:53,676 INFO L225 Difference]: With dead ends: 149212 [2024-10-12 20:21:53,677 INFO L226 Difference]: Without dead ends: 137306 [2024-10-12 20:21:53,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:53,701 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1465 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:53,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 438 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:21:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137306 states. [2024-10-12 20:21:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137306 to 63385. [2024-10-12 20:21:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63385 states, 63384 states have (on average 1.3965196264041397) internal successors, (88517), 63384 states have internal predecessors, (88517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63385 states to 63385 states and 88517 transitions. [2024-10-12 20:21:55,272 INFO L78 Accepts]: Start accepts. Automaton has 63385 states and 88517 transitions. Word has length 74 [2024-10-12 20:21:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:55,272 INFO L471 AbstractCegarLoop]: Abstraction has 63385 states and 88517 transitions. [2024-10-12 20:21:55,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2024-10-12 20:21:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 63385 states and 88517 transitions. [2024-10-12 20:21:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:21:55,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:55,282 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] [2024-10-12 20:21:55,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:21:55,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:55,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:55,282 INFO L85 PathProgramCache]: Analyzing trace with hash 547595205, now seen corresponding path program 1 times [2024-10-12 20:21:55,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:55,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366822295] [2024-10-12 20:21:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:55,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:55,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:55,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366822295] [2024-10-12 20:21:55,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366822295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:55,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:55,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:21:55,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783795425] [2024-10-12 20:21:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:55,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:21:55,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:21:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:55,667 INFO L87 Difference]: Start difference. First operand 63385 states and 88517 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:21:56,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:56,529 INFO L93 Difference]: Finished difference Result 108702 states and 151105 transitions. [2024-10-12 20:21:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:21:56,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 [2024-10-12 20:21:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:56,654 INFO L225 Difference]: With dead ends: 108702 [2024-10-12 20:21:56,654 INFO L226 Difference]: Without dead ends: 93115 [2024-10-12 20:21:56,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:21:56,690 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 951 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:56,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 754 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:21:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93115 states. [2024-10-12 20:21:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93115 to 63092. [2024-10-12 20:21:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63092 states, 63091 states have (on average 1.396411532548224) internal successors, (88101), 63091 states have internal predecessors, (88101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63092 states to 63092 states and 88101 transitions. [2024-10-12 20:21:58,017 INFO L78 Accepts]: Start accepts. Automaton has 63092 states and 88101 transitions. Word has length 76 [2024-10-12 20:21:58,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:58,017 INFO L471 AbstractCegarLoop]: Abstraction has 63092 states and 88101 transitions. [2024-10-12 20:21:58,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:21:58,017 INFO L276 IsEmpty]: Start isEmpty. Operand 63092 states and 88101 transitions. [2024-10-12 20:21:58,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:21:58,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:58,025 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] [2024-10-12 20:21:58,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:21:58,026 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:21:58,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1053820475, now seen corresponding path program 1 times [2024-10-12 20:21:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232038536] [2024-10-12 20:21:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:58,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232038536] [2024-10-12 20:21:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232038536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:58,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:21:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528185938] [2024-10-12 20:21:58,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:58,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:21:58,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:21:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:21:58,315 INFO L87 Difference]: Start difference. First operand 63092 states and 88101 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:21:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:59,689 INFO L93 Difference]: Finished difference Result 159143 states and 221872 transitions. [2024-10-12 20:21:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:21:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 [2024-10-12 20:21:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:59,848 INFO L225 Difference]: With dead ends: 159143 [2024-10-12 20:21:59,849 INFO L226 Difference]: Without dead ends: 103709 [2024-10-12 20:21:59,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-12 20:21:59,898 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1117 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:59,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 788 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:21:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103709 states. [2024-10-12 20:22:01,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103709 to 62953. [2024-10-12 20:22:01,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62953 states, 62952 states have (on average 1.3957936205362815) internal successors, (87868), 62952 states have internal predecessors, (87868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62953 states to 62953 states and 87868 transitions. [2024-10-12 20:22:01,205 INFO L78 Accepts]: Start accepts. Automaton has 62953 states and 87868 transitions. Word has length 76 [2024-10-12 20:22:01,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:01,205 INFO L471 AbstractCegarLoop]: Abstraction has 62953 states and 87868 transitions. [2024-10-12 20:22:01,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:22:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 62953 states and 87868 transitions. [2024-10-12 20:22:01,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:22:01,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:01,213 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] [2024-10-12 20:22:01,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:22:01,214 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:01,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1056205913, now seen corresponding path program 1 times [2024-10-12 20:22:01,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:01,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707000207] [2024-10-12 20:22:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:01,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:01,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707000207] [2024-10-12 20:22:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707000207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865436365] [2024-10-12 20:22:01,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:01,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:01,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:01,575 INFO L87 Difference]: Start difference. First operand 62953 states and 87868 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:22:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:02,530 INFO L93 Difference]: Finished difference Result 134663 states and 187781 transitions. [2024-10-12 20:22:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:22:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 [2024-10-12 20:22:02,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:02,675 INFO L225 Difference]: With dead ends: 134663 [2024-10-12 20:22:02,675 INFO L226 Difference]: Without dead ends: 94705 [2024-10-12 20:22:02,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-12 20:22:02,728 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 997 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:02,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 866 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:22:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94705 states. [2024-10-12 20:22:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94705 to 62904. [2024-10-12 20:22:04,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62904 states, 62903 states have (on average 1.3945757754002195) internal successors, (87723), 62903 states have internal predecessors, (87723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62904 states to 62904 states and 87723 transitions. [2024-10-12 20:22:04,143 INFO L78 Accepts]: Start accepts. Automaton has 62904 states and 87723 transitions. Word has length 76 [2024-10-12 20:22:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:04,144 INFO L471 AbstractCegarLoop]: Abstraction has 62904 states and 87723 transitions. [2024-10-12 20:22:04,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:22:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 62904 states and 87723 transitions. [2024-10-12 20:22:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:22:04,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:04,151 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] [2024-10-12 20:22:04,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:22:04,151 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:04,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:04,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1555686085, now seen corresponding path program 1 times [2024-10-12 20:22:04,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:04,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597145961] [2024-10-12 20:22:04,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:04,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:04,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:04,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597145961] [2024-10-12 20:22:04,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597145961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:04,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:04,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:04,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031366331] [2024-10-12 20:22:04,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:04,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:04,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:04,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:04,547 INFO L87 Difference]: Start difference. First operand 62904 states and 87723 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:22:05,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:05,882 INFO L93 Difference]: Finished difference Result 148375 states and 206305 transitions. [2024-10-12 20:22:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 20:22:05,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 [2024-10-12 20:22:05,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:06,001 INFO L225 Difference]: With dead ends: 148375 [2024-10-12 20:22:06,001 INFO L226 Difference]: Without dead ends: 87173 [2024-10-12 20:22:06,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:22:06,053 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 750 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:06,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1094 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:22:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87173 states. [2024-10-12 20:22:07,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87173 to 62609. [2024-10-12 20:22:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62609 states, 62608 states have (on average 1.3945023000255559) internal successors, (87307), 62608 states have internal predecessors, (87307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62609 states to 62609 states and 87307 transitions. [2024-10-12 20:22:07,173 INFO L78 Accepts]: Start accepts. Automaton has 62609 states and 87307 transitions. Word has length 76 [2024-10-12 20:22:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:07,173 INFO L471 AbstractCegarLoop]: Abstraction has 62609 states and 87307 transitions. [2024-10-12 20:22:07,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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) [2024-10-12 20:22:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 62609 states and 87307 transitions. [2024-10-12 20:22:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 20:22:07,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:07,178 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] [2024-10-12 20:22:07,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:22:07,178 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:07,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:07,178 INFO L85 PathProgramCache]: Analyzing trace with hash 32988097, now seen corresponding path program 1 times [2024-10-12 20:22:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783036240] [2024-10-12 20:22:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:07,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:07,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783036240] [2024-10-12 20:22:07,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783036240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:07,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:07,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:22:07,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343064979] [2024-10-12 20:22:07,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:07,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:22:07,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:07,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:22:07,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:22:07,944 INFO L87 Difference]: Start difference. First operand 62609 states and 87307 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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) [2024-10-12 20:22:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:08,994 INFO L93 Difference]: Finished difference Result 114969 states and 160319 transitions. [2024-10-12 20:22:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 20:22:08,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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 [2024-10-12 20:22:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:09,619 INFO L225 Difference]: With dead ends: 114969 [2024-10-12 20:22:09,619 INFO L226 Difference]: Without dead ends: 106968 [2024-10-12 20:22:09,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:22:09,665 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1345 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:09,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 2183 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106968 states. [2024-10-12 20:22:10,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106968 to 62625. [2024-10-12 20:22:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62625 states, 62624 states have (on average 1.394241824220746) internal successors, (87313), 62624 states have internal predecessors, (87313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62625 states to 62625 states and 87313 transitions. [2024-10-12 20:22:10,668 INFO L78 Accepts]: Start accepts. Automaton has 62625 states and 87313 transitions. Word has length 77 [2024-10-12 20:22:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:10,669 INFO L471 AbstractCegarLoop]: Abstraction has 62625 states and 87313 transitions. [2024-10-12 20:22:10,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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) [2024-10-12 20:22:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 62625 states and 87313 transitions. [2024-10-12 20:22:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 20:22:10,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:10,673 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] [2024-10-12 20:22:10,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:22:10,673 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:10,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash -922993607, now seen corresponding path program 1 times [2024-10-12 20:22:10,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:10,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850410464] [2024-10-12 20:22:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:11,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:11,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850410464] [2024-10-12 20:22:11,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850410464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:11,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:11,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:22:11,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780988171] [2024-10-12 20:22:11,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:11,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:22:11,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:11,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:22:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:22:11,807 INFO L87 Difference]: Start difference. First operand 62625 states and 87313 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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) [2024-10-12 20:22:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:12,845 INFO L93 Difference]: Finished difference Result 124348 states and 173362 transitions. [2024-10-12 20:22:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 20:22:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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 [2024-10-12 20:22:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:12,963 INFO L225 Difference]: With dead ends: 124348 [2024-10-12 20:22:12,963 INFO L226 Difference]: Without dead ends: 98262 [2024-10-12 20:22:13,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:22:13,007 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1323 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:13,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2186 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98262 states. [2024-10-12 20:22:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98262 to 62455. [2024-10-12 20:22:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62455 states, 62454 states have (on average 1.3946584686329138) internal successors, (87102), 62454 states have internal predecessors, (87102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62455 states to 62455 states and 87102 transitions. [2024-10-12 20:22:14,141 INFO L78 Accepts]: Start accepts. Automaton has 62455 states and 87102 transitions. Word has length 77 [2024-10-12 20:22:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:14,142 INFO L471 AbstractCegarLoop]: Abstraction has 62455 states and 87102 transitions. [2024-10-12 20:22:14,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 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) [2024-10-12 20:22:14,142 INFO L276 IsEmpty]: Start isEmpty. Operand 62455 states and 87102 transitions. [2024-10-12 20:22:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:22:14,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:14,146 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] [2024-10-12 20:22:14,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:22:14,146 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:14,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:14,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1122440523, now seen corresponding path program 1 times [2024-10-12 20:22:14,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:14,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315964792] [2024-10-12 20:22:14,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:14,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:14,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315964792] [2024-10-12 20:22:14,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315964792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:14,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:14,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:14,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458310500] [2024-10-12 20:22:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:14,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:14,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:14,203 INFO L87 Difference]: Start difference. First operand 62455 states and 87102 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-10-12 20:22:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:14,566 INFO L93 Difference]: Finished difference Result 114443 states and 159342 transitions. [2024-10-12 20:22:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:14,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 [2024-10-12 20:22:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:14,711 INFO L225 Difference]: With dead ends: 114443 [2024-10-12 20:22:14,711 INFO L226 Difference]: Without dead ends: 86098 [2024-10-12 20:22:14,761 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 [2024-10-12 20:22:14,762 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 196 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:14,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 382 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:14,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86098 states. [2024-10-12 20:22:16,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86098 to 85952. [2024-10-12 20:22:16,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85952 states, 85951 states have (on average 1.3930029900757408) internal successors, (119730), 85951 states have internal predecessors, (119730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85952 states to 85952 states and 119730 transitions. [2024-10-12 20:22:16,421 INFO L78 Accepts]: Start accepts. Automaton has 85952 states and 119730 transitions. Word has length 78 [2024-10-12 20:22:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:16,421 INFO L471 AbstractCegarLoop]: Abstraction has 85952 states and 119730 transitions. [2024-10-12 20:22:16,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-10-12 20:22:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 85952 states and 119730 transitions. [2024-10-12 20:22:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:22:16,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:16,426 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] [2024-10-12 20:22:16,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:22:16,426 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:16,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1767675661, now seen corresponding path program 1 times [2024-10-12 20:22:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:16,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769471280] [2024-10-12 20:22:16,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:16,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:16,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769471280] [2024-10-12 20:22:16,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769471280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:16,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:16,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:16,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492685058] [2024-10-12 20:22:16,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:16,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:16,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:16,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:16,478 INFO L87 Difference]: Start difference. First operand 85952 states and 119730 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-10-12 20:22:17,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:17,755 INFO L93 Difference]: Finished difference Result 183047 states and 254991 transitions. [2024-10-12 20:22:17,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:17,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 [2024-10-12 20:22:17,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:18,072 INFO L225 Difference]: With dead ends: 183047 [2024-10-12 20:22:18,073 INFO L226 Difference]: Without dead ends: 125207 [2024-10-12 20:22:18,159 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 [2024-10-12 20:22:18,160 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 183 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:18,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 421 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125207 states. [2024-10-12 20:22:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125207 to 124765. [2024-10-12 20:22:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124765 states, 124764 states have (on average 1.3956750344650701) internal successors, (174130), 124764 states have internal predecessors, (174130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124765 states to 124765 states and 174130 transitions. [2024-10-12 20:22:19,864 INFO L78 Accepts]: Start accepts. Automaton has 124765 states and 174130 transitions. Word has length 78 [2024-10-12 20:22:19,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:19,864 INFO L471 AbstractCegarLoop]: Abstraction has 124765 states and 174130 transitions. [2024-10-12 20:22:19,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-10-12 20:22:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 124765 states and 174130 transitions. [2024-10-12 20:22:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:22:19,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:19,871 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] [2024-10-12 20:22:19,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:22:19,871 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:19,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:19,871 INFO L85 PathProgramCache]: Analyzing trace with hash 237474817, now seen corresponding path program 1 times [2024-10-12 20:22:19,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:19,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260225099] [2024-10-12 20:22:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:19,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:19,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:19,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260225099] [2024-10-12 20:22:19,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260225099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:19,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:19,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:19,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791040630] [2024-10-12 20:22:19,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:19,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:19,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:19,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:19,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:19,920 INFO L87 Difference]: Start difference. First operand 124765 states and 174130 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-10-12 20:22:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:21,338 INFO L93 Difference]: Finished difference Result 247580 states and 345855 transitions. [2024-10-12 20:22:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2024-10-12 20:22:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:21,621 INFO L225 Difference]: With dead ends: 247580 [2024-10-12 20:22:21,622 INFO L226 Difference]: Without dead ends: 166144 [2024-10-12 20:22:21,659 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 [2024-10-12 20:22:21,660 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 172 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:21,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 356 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166144 states. [2024-10-12 20:22:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166144 to 108654. [2024-10-12 20:22:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108654 states, 108653 states have (on average 1.3988385042290594) internal successors, (151988), 108653 states have internal predecessors, (151988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108654 states to 108654 states and 151988 transitions. [2024-10-12 20:22:23,561 INFO L78 Accepts]: Start accepts. Automaton has 108654 states and 151988 transitions. Word has length 81 [2024-10-12 20:22:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:23,561 INFO L471 AbstractCegarLoop]: Abstraction has 108654 states and 151988 transitions. [2024-10-12 20:22:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-10-12 20:22:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 108654 states and 151988 transitions. [2024-10-12 20:22:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:22:23,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:23,567 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] [2024-10-12 20:22:23,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:22:23,567 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:23,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash 356146503, now seen corresponding path program 1 times [2024-10-12 20:22:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:23,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462801195] [2024-10-12 20:22:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:23,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:23,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462801195] [2024-10-12 20:22:23,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462801195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:23,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:23,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502522459] [2024-10-12 20:22:23,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:23,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:23,626 INFO L87 Difference]: Start difference. First operand 108654 states and 151988 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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)