./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 4d887e46d9e1781030c0b6aae8069b6bddec306ee6a48cba2aa303ff66f408ca --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:59:33,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:59:33,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 04:59:33,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:59:33,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:59:33,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:59:33,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:59:33,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:59:33,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:59:33,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:59:33,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:59:33,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:59:33,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:59:33,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:59:33,832 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:59:33,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:59:33,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:59:33,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:59:33,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:59:33,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:59:33,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:59:33,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:59:33,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:59:33,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:59:33,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:59:33,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:59:33,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:59:33,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:59:33,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:59:33,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:59:33,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:59:33,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:59:33,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:59:33,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:59:33,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:59:33,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:59:33,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:59:33,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:59:33,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:59:33,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d887e46d9e1781030c0b6aae8069b6bddec306ee6a48cba2aa303ff66f408ca [2024-11-22 04:59:34,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:59:34,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:59:34,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:59:34,114 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:59:34,115 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:59:34,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c [2024-11-22 04:59:35,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:59:35,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:59:35,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c [2024-11-22 04:59:35,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87a794f30/7d558cfdfa7740f59922faa17bffcf77/FLAGcf8a5a01c [2024-11-22 04:59:35,886 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87a794f30/7d558cfdfa7740f59922faa17bffcf77 [2024-11-22 04:59:35,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:59:35,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:59:35,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:59:35,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:59:35,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:59:35,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:59:35" (1/1) ... [2024-11-22 04:59:35,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b1c271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:35, skipping insertion in model container [2024-11-22 04:59:35,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:59:35" (1/1) ... [2024-11-22 04:59:35,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:59:36,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c[1279,1292] [2024-11-22 04:59:36,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:59:36,331 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:59:36,340 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c[1279,1292] [2024-11-22 04:59:36,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:59:36,557 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:59:36,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36 WrapperNode [2024-11-22 04:59:36,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:59:36,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:59:36,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:59:36,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:59:36,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,728 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1383 [2024-11-22 04:59:36,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:59:36,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:59:36,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:59:36,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:59:36,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,847 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 04:59:36,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:59:36,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:59:36,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:59:36,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:59:36,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (1/1) ... [2024-11-22 04:59:36,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:59:37,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:59:37,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 04:59:37,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 04:59:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:59:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 04:59:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 04:59:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:59:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:59:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:59:37,266 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:59:37,268 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:59:38,873 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-22 04:59:38,874 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:59:38,900 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:59:38,901 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 04:59:38,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:59:38 BoogieIcfgContainer [2024-11-22 04:59:38,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:59:38,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:59:38,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:59:38,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:59:38,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:59:35" (1/3) ... [2024-11-22 04:59:38,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1294aac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:59:38, skipping insertion in model container [2024-11-22 04:59:38,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:59:36" (2/3) ... [2024-11-22 04:59:38,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1294aac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:59:38, skipping insertion in model container [2024-11-22 04:59:38,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:59:38" (3/3) ... [2024-11-22 04:59:38,925 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d8_e0.c [2024-11-22 04:59:38,945 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:59:38,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 04:59:39,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:59:39,041 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;@23cfc54f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:59:39,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 04:59:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 386 states have (on average 1.4922279792746114) internal successors, (576), 387 states have internal predecessors, (576), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 04:59:39,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:39,061 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:39,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:39,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1656611576, now seen corresponding path program 1 times [2024-11-22 04:59:39,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:39,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36685752] [2024-11-22 04:59:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 04:59:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36685752] [2024-11-22 04:59:39,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36685752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:59:39,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126060199] [2024-11-22 04:59:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:39,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:59:39,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:59:39,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:59:39,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:59:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:39,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 04:59:39,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:59:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 04:59:39,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:59:39,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126060199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:39,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:59:39,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 04:59:39,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283225201] [2024-11-22 04:59:39,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:39,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 04:59:39,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:40,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 04:59:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:59:40,009 INFO L87 Difference]: Start difference. First operand has 392 states, 386 states have (on average 1.4922279792746114) internal successors, (576), 387 states have internal predecessors, (576), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:40,061 INFO L93 Difference]: Finished difference Result 711 states and 1061 transitions. [2024-11-22 04:59:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 04:59:40,065 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 117 [2024-11-22 04:59:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:40,076 INFO L225 Difference]: With dead ends: 711 [2024-11-22 04:59:40,076 INFO L226 Difference]: Without dead ends: 389 [2024-11-22 04:59:40,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:59:40,084 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:40,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-22 04:59:40,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-11-22 04:59:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4869791666666667) internal successors, (571), 384 states have internal predecessors, (571), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 577 transitions. [2024-11-22 04:59:40,140 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 577 transitions. Word has length 117 [2024-11-22 04:59:40,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:40,140 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 577 transitions. [2024-11-22 04:59:40,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 577 transitions. [2024-11-22 04:59:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 04:59:40,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:40,146 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:40,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:59:40,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 04:59:40,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:40,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:40,348 INFO L85 PathProgramCache]: Analyzing trace with hash 782291010, now seen corresponding path program 1 times [2024-11-22 04:59:40,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:40,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21353028] [2024-11-22 04:59:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:40,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:41,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:41,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21353028] [2024-11-22 04:59:41,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21353028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:41,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:41,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:41,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458314696] [2024-11-22 04:59:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:41,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:41,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:41,298 INFO L87 Difference]: Start difference. First operand 389 states and 577 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:41,348 INFO L93 Difference]: Finished difference Result 393 states and 581 transitions. [2024-11-22 04:59:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 117 [2024-11-22 04:59:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:41,355 INFO L225 Difference]: With dead ends: 393 [2024-11-22 04:59:41,355 INFO L226 Difference]: Without dead ends: 391 [2024-11-22 04:59:41,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:41,357 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 0 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1719 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 [2024-11-22 04:59:41,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1719 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:41,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-22 04:59:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-22 04:59:41,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4844559585492227) internal successors, (573), 386 states have internal predecessors, (573), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:41,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 579 transitions. [2024-11-22 04:59:41,384 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 579 transitions. Word has length 117 [2024-11-22 04:59:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:41,386 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 579 transitions. [2024-11-22 04:59:41,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 579 transitions. [2024-11-22 04:59:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 04:59:41,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:41,389 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:41,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:59:41,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:41,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1517086696, now seen corresponding path program 1 times [2024-11-22 04:59:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:41,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565124486] [2024-11-22 04:59:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:41,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:41,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:41,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565124486] [2024-11-22 04:59:41,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565124486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:41,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:41,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:41,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142577287] [2024-11-22 04:59:41,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:41,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:41,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:41,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:41,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:41,856 INFO L87 Difference]: Start difference. First operand 391 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:42,229 INFO L93 Difference]: Finished difference Result 971 states and 1441 transitions. [2024-11-22 04:59:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:59:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 118 [2024-11-22 04:59:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:42,232 INFO L225 Difference]: With dead ends: 971 [2024-11-22 04:59:42,232 INFO L226 Difference]: Without dead ends: 391 [2024-11-22 04:59:42,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:59:42,236 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1090 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:42,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1687 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-22 04:59:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-22 04:59:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4818652849740932) internal successors, (572), 386 states have internal predecessors, (572), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 578 transitions. [2024-11-22 04:59:42,252 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 578 transitions. Word has length 118 [2024-11-22 04:59:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:42,254 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 578 transitions. [2024-11-22 04:59:42,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 578 transitions. [2024-11-22 04:59:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 04:59:42,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:42,258 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:42,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:59:42,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:42,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:42,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1565089340, now seen corresponding path program 1 times [2024-11-22 04:59:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376073273] [2024-11-22 04:59:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:42,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:42,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:42,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376073273] [2024-11-22 04:59:42,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376073273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:42,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:42,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026502144] [2024-11-22 04:59:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:42,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:42,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:42,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:42,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:42,666 INFO L87 Difference]: Start difference. First operand 391 states and 578 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:42,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:42,700 INFO L93 Difference]: Finished difference Result 714 states and 1055 transitions. [2024-11-22 04:59:42,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:42,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 119 [2024-11-22 04:59:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:42,703 INFO L225 Difference]: With dead ends: 714 [2024-11-22 04:59:42,704 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:42,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:42,706 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:42,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1712 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:42,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4793814432989691) internal successors, (574), 388 states have internal predecessors, (574), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 580 transitions. [2024-11-22 04:59:42,719 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 580 transitions. Word has length 119 [2024-11-22 04:59:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:42,720 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 580 transitions. [2024-11-22 04:59:42,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 580 transitions. [2024-11-22 04:59:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 04:59:42,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:42,723 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:42,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:59:42,725 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:42,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash 175163959, now seen corresponding path program 1 times [2024-11-22 04:59:42,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:42,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291451644] [2024-11-22 04:59:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:42,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:43,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291451644] [2024-11-22 04:59:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291451644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:43,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:43,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:43,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344490397] [2024-11-22 04:59:43,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:43,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:43,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:43,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:43,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:43,231 INFO L87 Difference]: Start difference. First operand 393 states and 580 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:43,349 INFO L93 Difference]: Finished difference Result 716 states and 1056 transitions. [2024-11-22 04:59:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 120 [2024-11-22 04:59:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:43,352 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:43,352 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:43,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:43,354 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 484 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:43,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1070 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4768041237113403) internal successors, (573), 388 states have internal predecessors, (573), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 579 transitions. [2024-11-22 04:59:43,363 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 579 transitions. Word has length 120 [2024-11-22 04:59:43,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:43,364 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 579 transitions. [2024-11-22 04:59:43,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:43,364 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 579 transitions. [2024-11-22 04:59:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 04:59:43,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:43,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:43,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:59:43,366 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:43,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:43,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1914756474, now seen corresponding path program 1 times [2024-11-22 04:59:43,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:43,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850702846] [2024-11-22 04:59:43,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:43,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:43,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:43,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850702846] [2024-11-22 04:59:43,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850702846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:43,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:43,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:43,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114909498] [2024-11-22 04:59:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:43,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:43,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:43,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:43,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:43,698 INFO L87 Difference]: Start difference. First operand 393 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:43,805 INFO L93 Difference]: Finished difference Result 716 states and 1054 transitions. [2024-11-22 04:59:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:43,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 121 [2024-11-22 04:59:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:43,808 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:43,808 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:43,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:43,809 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 1041 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1070 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 [2024-11-22 04:59:43,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1070 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4742268041237114) internal successors, (572), 388 states have internal predecessors, (572), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 578 transitions. [2024-11-22 04:59:43,819 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 578 transitions. Word has length 121 [2024-11-22 04:59:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:43,820 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 578 transitions. [2024-11-22 04:59:43,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 578 transitions. [2024-11-22 04:59:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 04:59:43,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:43,822 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:43,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:59:43,822 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:43,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:43,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1067422640, now seen corresponding path program 1 times [2024-11-22 04:59:43,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:43,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383752117] [2024-11-22 04:59:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:43,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383752117] [2024-11-22 04:59:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383752117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807338486] [2024-11-22 04:59:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:44,199 INFO L87 Difference]: Start difference. First operand 393 states and 578 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:44,303 INFO L93 Difference]: Finished difference Result 716 states and 1052 transitions. [2024-11-22 04:59:44,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:44,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 122 [2024-11-22 04:59:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:44,306 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:44,306 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:44,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:44,308 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 559 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:44,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1077 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:44,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4716494845360826) internal successors, (571), 388 states have internal predecessors, (571), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 577 transitions. [2024-11-22 04:59:44,320 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 577 transitions. Word has length 122 [2024-11-22 04:59:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:44,321 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 577 transitions. [2024-11-22 04:59:44,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 577 transitions. [2024-11-22 04:59:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 04:59:44,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:44,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:44,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:59:44,323 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:44,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash 347582015, now seen corresponding path program 1 times [2024-11-22 04:59:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536628310] [2024-11-22 04:59:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:44,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:44,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536628310] [2024-11-22 04:59:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536628310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:44,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:44,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031723325] [2024-11-22 04:59:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:44,630 INFO L87 Difference]: Start difference. First operand 393 states and 577 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:44,749 INFO L93 Difference]: Finished difference Result 716 states and 1050 transitions. [2024-11-22 04:59:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:44,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 123 [2024-11-22 04:59:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:44,752 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:44,752 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:44,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:44,753 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 1025 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:44,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1070 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4690721649484537) internal successors, (570), 388 states have internal predecessors, (570), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 576 transitions. [2024-11-22 04:59:44,763 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 576 transitions. Word has length 123 [2024-11-22 04:59:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:44,763 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 576 transitions. [2024-11-22 04:59:44,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 576 transitions. [2024-11-22 04:59:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 04:59:44,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:44,765 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:44,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:59:44,765 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:44,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:44,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1013729001, now seen corresponding path program 1 times [2024-11-22 04:59:44,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:44,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304565886] [2024-11-22 04:59:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:44,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:45,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:45,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304565886] [2024-11-22 04:59:45,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304565886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:45,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:45,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562149063] [2024-11-22 04:59:45,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:45,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:45,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:45,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:45,155 INFO L87 Difference]: Start difference. First operand 393 states and 576 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:45,228 INFO L93 Difference]: Finished difference Result 716 states and 1048 transitions. [2024-11-22 04:59:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:45,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 124 [2024-11-22 04:59:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:45,232 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:45,232 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:45,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:45,234 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 483 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:45,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1102 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:45,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:45,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:45,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4639175257731958) internal successors, (568), 388 states have internal predecessors, (568), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 574 transitions. [2024-11-22 04:59:45,246 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 574 transitions. Word has length 124 [2024-11-22 04:59:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:45,246 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 574 transitions. [2024-11-22 04:59:45,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 574 transitions. [2024-11-22 04:59:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 04:59:45,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:45,248 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:45,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:59:45,248 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:45,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash 242180262, now seen corresponding path program 1 times [2024-11-22 04:59:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:45,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928703718] [2024-11-22 04:59:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:45,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:45,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928703718] [2024-11-22 04:59:45,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928703718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:45,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:45,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:45,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774838981] [2024-11-22 04:59:45,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:45,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:45,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:45,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:45,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:45,629 INFO L87 Difference]: Start difference. First operand 393 states and 574 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:45,699 INFO L93 Difference]: Finished difference Result 716 states and 1044 transitions. [2024-11-22 04:59:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 126 [2024-11-22 04:59:45,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:45,702 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:45,702 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:45,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:45,703 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 557 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:45,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1109 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.461340206185567) internal successors, (567), 388 states have internal predecessors, (567), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 573 transitions. [2024-11-22 04:59:45,715 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 573 transitions. Word has length 126 [2024-11-22 04:59:45,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:45,716 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 573 transitions. [2024-11-22 04:59:45,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 573 transitions. [2024-11-22 04:59:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 04:59:45,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:45,717 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:45,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:59:45,718 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:45,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:45,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1944964062, now seen corresponding path program 1 times [2024-11-22 04:59:45,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:45,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176699483] [2024-11-22 04:59:45,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:45,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:46,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:46,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:46,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176699483] [2024-11-22 04:59:46,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176699483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:46,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:46,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:46,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347986184] [2024-11-22 04:59:46,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:46,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:46,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:46,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:46,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:46,125 INFO L87 Difference]: Start difference. First operand 393 states and 573 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:46,190 INFO L93 Difference]: Finished difference Result 716 states and 1042 transitions. [2024-11-22 04:59:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 127 [2024-11-22 04:59:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:46,193 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:46,193 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:46,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:46,195 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 518 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:46,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1108 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:46,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.458762886597938) internal successors, (566), 388 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 572 transitions. [2024-11-22 04:59:46,205 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 572 transitions. Word has length 127 [2024-11-22 04:59:46,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:46,206 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 572 transitions. [2024-11-22 04:59:46,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:46,206 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 572 transitions. [2024-11-22 04:59:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 04:59:46,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:46,208 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:46,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:59:46,208 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:46,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:46,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1181888200, now seen corresponding path program 1 times [2024-11-22 04:59:46,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:46,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994449288] [2024-11-22 04:59:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:46,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:46,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:46,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994449288] [2024-11-22 04:59:46,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994449288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:46,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:46,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135807503] [2024-11-22 04:59:46,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:46,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:46,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:46,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:46,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:46,743 INFO L87 Difference]: Start difference. First operand 393 states and 572 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:46,912 INFO L93 Difference]: Finished difference Result 716 states and 1040 transitions. [2024-11-22 04:59:46,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:46,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 128 [2024-11-22 04:59:46,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:46,914 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:59:46,915 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 04:59:46,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:46,916 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 472 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:46,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1587 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 04:59:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-22 04:59:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4561855670103092) internal successors, (565), 388 states have internal predecessors, (565), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 571 transitions. [2024-11-22 04:59:46,930 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 571 transitions. Word has length 128 [2024-11-22 04:59:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:46,930 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 571 transitions. [2024-11-22 04:59:46,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 571 transitions. [2024-11-22 04:59:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 04:59:46,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:46,934 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:46,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:59:46,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:46,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 988572428, now seen corresponding path program 1 times [2024-11-22 04:59:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513392179] [2024-11-22 04:59:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:47,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:47,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513392179] [2024-11-22 04:59:47,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513392179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:47,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:47,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:47,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46447808] [2024-11-22 04:59:47,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:47,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:47,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:47,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:47,683 INFO L87 Difference]: Start difference. First operand 393 states and 571 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:47,896 INFO L93 Difference]: Finished difference Result 722 states and 1046 transitions. [2024-11-22 04:59:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:59:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 129 [2024-11-22 04:59:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:47,899 INFO L225 Difference]: With dead ends: 722 [2024-11-22 04:59:47,899 INFO L226 Difference]: Without dead ends: 397 [2024-11-22 04:59:47,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:47,901 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 2 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:47,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2091 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:47,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-22 04:59:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2024-11-22 04:59:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.4538461538461538) internal successors, (567), 390 states have internal predecessors, (567), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:47,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 573 transitions. [2024-11-22 04:59:47,914 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 573 transitions. Word has length 129 [2024-11-22 04:59:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:47,914 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 573 transitions. [2024-11-22 04:59:47,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 573 transitions. [2024-11-22 04:59:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 04:59:47,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:47,916 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:47,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:59:47,916 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:47,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 337853749, now seen corresponding path program 1 times [2024-11-22 04:59:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:47,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077436932] [2024-11-22 04:59:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:47,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:48,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:48,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077436932] [2024-11-22 04:59:48,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077436932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:48,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:48,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102138866] [2024-11-22 04:59:48,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:48,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:48,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:48,391 INFO L87 Difference]: Start difference. First operand 395 states and 573 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:48,514 INFO L93 Difference]: Finished difference Result 720 states and 1042 transitions. [2024-11-22 04:59:48,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:48,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 130 [2024-11-22 04:59:48,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:48,517 INFO L225 Difference]: With dead ends: 720 [2024-11-22 04:59:48,518 INFO L226 Difference]: Without dead ends: 395 [2024-11-22 04:59:48,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:48,519 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 932 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:48,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 1062 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-22 04:59:48,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-22 04:59:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.4512820512820512) internal successors, (566), 390 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 572 transitions. [2024-11-22 04:59:48,530 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 572 transitions. Word has length 130 [2024-11-22 04:59:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:48,530 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 572 transitions. [2024-11-22 04:59:48,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 572 transitions. [2024-11-22 04:59:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 04:59:48,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:48,532 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:48,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:59:48,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:48,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1709410096, now seen corresponding path program 1 times [2024-11-22 04:59:48,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:48,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745213121] [2024-11-22 04:59:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:48,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745213121] [2024-11-22 04:59:48,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745213121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:48,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891979108] [2024-11-22 04:59:48,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:48,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:48,980 INFO L87 Difference]: Start difference. First operand 395 states and 572 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:49,088 INFO L93 Difference]: Finished difference Result 720 states and 1040 transitions. [2024-11-22 04:59:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:49,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 131 [2024-11-22 04:59:49,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:49,091 INFO L225 Difference]: With dead ends: 720 [2024-11-22 04:59:49,091 INFO L226 Difference]: Without dead ends: 395 [2024-11-22 04:59:49,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:49,092 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 467 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:49,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1069 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:49,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-22 04:59:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-22 04:59:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.4487179487179487) internal successors, (565), 390 states have internal predecessors, (565), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 571 transitions. [2024-11-22 04:59:49,103 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 571 transitions. Word has length 131 [2024-11-22 04:59:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:49,104 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 571 transitions. [2024-11-22 04:59:49,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 571 transitions. [2024-11-22 04:59:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 04:59:49,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:49,105 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:49,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:59:49,105 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:49,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:49,106 INFO L85 PathProgramCache]: Analyzing trace with hash -815191116, now seen corresponding path program 1 times [2024-11-22 04:59:49,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:49,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986256304] [2024-11-22 04:59:49,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:49,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:49,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:49,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986256304] [2024-11-22 04:59:49,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986256304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:49,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:49,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:49,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624810006] [2024-11-22 04:59:49,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:49,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:49,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:49,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:49,429 INFO L87 Difference]: Start difference. First operand 395 states and 571 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:49,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:49,489 INFO L93 Difference]: Finished difference Result 720 states and 1038 transitions. [2024-11-22 04:59:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:49,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 132 [2024-11-22 04:59:49,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:49,492 INFO L225 Difference]: With dead ends: 720 [2024-11-22 04:59:49,492 INFO L226 Difference]: Without dead ends: 395 [2024-11-22 04:59:49,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:49,493 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 513 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:49,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1102 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-22 04:59:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-22 04:59:49,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.4461538461538461) internal successors, (564), 390 states have internal predecessors, (564), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 570 transitions. [2024-11-22 04:59:49,505 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 570 transitions. Word has length 132 [2024-11-22 04:59:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:49,505 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 570 transitions. [2024-11-22 04:59:49,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:49,506 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 570 transitions. [2024-11-22 04:59:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 04:59:49,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:49,507 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:49,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:59:49,507 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:49,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1900448443, now seen corresponding path program 1 times [2024-11-22 04:59:49,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:49,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132777400] [2024-11-22 04:59:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:50,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:50,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132777400] [2024-11-22 04:59:50,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132777400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:50,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:50,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:59:50,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404436010] [2024-11-22 04:59:50,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:50,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:59:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:59:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:59:50,727 INFO L87 Difference]: Start difference. First operand 395 states and 570 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:51,087 INFO L93 Difference]: Finished difference Result 788 states and 1134 transitions. [2024-11-22 04:59:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:59:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 133 [2024-11-22 04:59:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:51,090 INFO L225 Difference]: With dead ends: 788 [2024-11-22 04:59:51,090 INFO L226 Difference]: Without dead ends: 399 [2024-11-22 04:59:51,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:59:51,092 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 647 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:51,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 2562 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-22 04:59:51,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 397. [2024-11-22 04:59:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.4438775510204083) internal successors, (566), 392 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 572 transitions. [2024-11-22 04:59:51,105 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 572 transitions. Word has length 133 [2024-11-22 04:59:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:51,105 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 572 transitions. [2024-11-22 04:59:51,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 572 transitions. [2024-11-22 04:59:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 04:59:51,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:51,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:51,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:59:51,107 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:51,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash 571892484, now seen corresponding path program 1 times [2024-11-22 04:59:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:51,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619397218] [2024-11-22 04:59:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:51,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:51,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:51,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619397218] [2024-11-22 04:59:51,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619397218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:51,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:51,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:59:51,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973794257] [2024-11-22 04:59:51,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:51,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:59:51,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:51,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:59:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:51,944 INFO L87 Difference]: Start difference. First operand 397 states and 572 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:52,065 INFO L93 Difference]: Finished difference Result 848 states and 1211 transitions. [2024-11-22 04:59:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:59:52,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 134 [2024-11-22 04:59:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:52,068 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:52,069 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:52,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:59:52,070 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 861 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:52,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2202 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4230019493177388) internal successors, (730), 513 states have internal predecessors, (730), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 742 transitions. [2024-11-22 04:59:52,088 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 742 transitions. Word has length 134 [2024-11-22 04:59:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:52,088 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 742 transitions. [2024-11-22 04:59:52,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 742 transitions. [2024-11-22 04:59:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-22 04:59:52,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:52,092 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:52,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:59:52,093 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash 390967854, now seen corresponding path program 1 times [2024-11-22 04:59:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716885934] [2024-11-22 04:59:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:52,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:52,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716885934] [2024-11-22 04:59:52,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716885934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:52,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:52,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:52,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71259960] [2024-11-22 04:59:52,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:52,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:52,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:52,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:52,924 INFO L87 Difference]: Start difference. First operand 521 states and 742 transitions. Second operand has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:53,020 INFO L93 Difference]: Finished difference Result 848 states and 1210 transitions. [2024-11-22 04:59:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 322 [2024-11-22 04:59:53,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:53,024 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:53,024 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:53,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:53,026 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 940 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:53,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1060 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:53,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4210526315789473) internal successors, (729), 513 states have internal predecessors, (729), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 741 transitions. [2024-11-22 04:59:53,043 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 741 transitions. Word has length 322 [2024-11-22 04:59:53,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:53,044 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 741 transitions. [2024-11-22 04:59:53,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 741 transitions. [2024-11-22 04:59:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-22 04:59:53,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:53,050 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:53,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:59:53,050 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:53,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash -199430240, now seen corresponding path program 1 times [2024-11-22 04:59:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577252414] [2024-11-22 04:59:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:53,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:53,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577252414] [2024-11-22 04:59:53,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577252414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:53,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:53,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:53,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316804983] [2024-11-22 04:59:53,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:53,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:53,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:53,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:53,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:53,839 INFO L87 Difference]: Start difference. First operand 521 states and 741 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:53,943 INFO L93 Difference]: Finished difference Result 848 states and 1208 transitions. [2024-11-22 04:59:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 323 [2024-11-22 04:59:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:53,948 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:53,948 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:53,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:53,950 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 508 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:53,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1067 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:53,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4191033138401559) internal successors, (728), 513 states have internal predecessors, (728), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 740 transitions. [2024-11-22 04:59:53,974 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 740 transitions. Word has length 323 [2024-11-22 04:59:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:53,975 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 740 transitions. [2024-11-22 04:59:53,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 740 transitions. [2024-11-22 04:59:53,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-22 04:59:53,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:53,981 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:53,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:59:53,983 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1314339161, now seen corresponding path program 1 times [2024-11-22 04:59:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353178306] [2024-11-22 04:59:53,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:53,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:54,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:54,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353178306] [2024-11-22 04:59:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353178306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:54,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:54,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:54,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126972700] [2024-11-22 04:59:54,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:54,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:54,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:54,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:54,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:54,810 INFO L87 Difference]: Start difference. First operand 521 states and 740 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:54,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:54,916 INFO L93 Difference]: Finished difference Result 848 states and 1206 transitions. [2024-11-22 04:59:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:54,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 324 [2024-11-22 04:59:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:54,920 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:54,920 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:54,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:54,921 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 500 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:54,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1067 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:54,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:54,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4171539961013646) internal successors, (727), 513 states have internal predecessors, (727), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 739 transitions. [2024-11-22 04:59:54,944 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 739 transitions. Word has length 324 [2024-11-22 04:59:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:54,944 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 739 transitions. [2024-11-22 04:59:54,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 739 transitions. [2024-11-22 04:59:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-22 04:59:54,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:54,949 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:54,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:59:54,950 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:54,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:54,951 INFO L85 PathProgramCache]: Analyzing trace with hash -378811413, now seen corresponding path program 1 times [2024-11-22 04:59:54,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:54,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496661198] [2024-11-22 04:59:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:55,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:55,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496661198] [2024-11-22 04:59:55,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496661198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:55,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:55,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:55,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826131542] [2024-11-22 04:59:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:55,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:55,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:55,797 INFO L87 Difference]: Start difference. First operand 521 states and 739 transitions. Second operand has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:55,888 INFO L93 Difference]: Finished difference Result 848 states and 1204 transitions. [2024-11-22 04:59:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:55,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 325 [2024-11-22 04:59:55,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:55,892 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:55,892 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:55,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:55,894 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 892 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:55,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1060 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:55,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:55,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4152046783625731) internal successors, (726), 513 states have internal predecessors, (726), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 738 transitions. [2024-11-22 04:59:55,913 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 738 transitions. Word has length 325 [2024-11-22 04:59:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:55,914 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 738 transitions. [2024-11-22 04:59:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 738 transitions. [2024-11-22 04:59:55,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-22 04:59:55,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:55,919 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:55,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:59:55,919 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:55,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:55,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1464783612, now seen corresponding path program 1 times [2024-11-22 04:59:55,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:55,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164564314] [2024-11-22 04:59:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:55,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:56,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:56,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164564314] [2024-11-22 04:59:56,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164564314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:56,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:56,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:56,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576872424] [2024-11-22 04:59:56,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:56,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:56,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:56,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:56,797 INFO L87 Difference]: Start difference. First operand 521 states and 738 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:56,866 INFO L93 Difference]: Finished difference Result 848 states and 1202 transitions. [2024-11-22 04:59:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:56,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 326 [2024-11-22 04:59:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:56,870 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:56,870 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:56,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:56,871 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 869 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:56,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1084 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4132553606237817) internal successors, (725), 513 states have internal predecessors, (725), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 737 transitions. [2024-11-22 04:59:56,889 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 737 transitions. Word has length 326 [2024-11-22 04:59:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:56,890 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 737 transitions. [2024-11-22 04:59:56,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 737 transitions. [2024-11-22 04:59:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-22 04:59:56,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:56,894 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:56,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:59:56,895 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:56,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash 451132598, now seen corresponding path program 1 times [2024-11-22 04:59:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:56,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929136853] [2024-11-22 04:59:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:57,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:57,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929136853] [2024-11-22 04:59:57,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929136853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:57,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:57,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:57,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647246373] [2024-11-22 04:59:57,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:57,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:57,827 INFO L87 Difference]: Start difference. First operand 521 states and 737 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:57,896 INFO L93 Difference]: Finished difference Result 848 states and 1200 transitions. [2024-11-22 04:59:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 327 [2024-11-22 04:59:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:57,899 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:57,900 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:57,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:57,903 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 853 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:57,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1084 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:57,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4113060428849902) internal successors, (724), 513 states have internal predecessors, (724), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 736 transitions. [2024-11-22 04:59:57,921 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 736 transitions. Word has length 327 [2024-11-22 04:59:57,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:57,921 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 736 transitions. [2024-11-22 04:59:57,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 736 transitions. [2024-11-22 04:59:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-22 04:59:57,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:57,926 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:57,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:59:57,927 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:57,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash -109490897, now seen corresponding path program 1 times [2024-11-22 04:59:57,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:57,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624981297] [2024-11-22 04:59:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:57,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 04:59:58,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:58,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624981297] [2024-11-22 04:59:58,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624981297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:58,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:58,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:58,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622426894] [2024-11-22 04:59:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:58,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:58,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:58,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:58,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:58,813 INFO L87 Difference]: Start difference. First operand 521 states and 736 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:59,103 INFO L93 Difference]: Finished difference Result 848 states and 1198 transitions. [2024-11-22 04:59:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 328 [2024-11-22 04:59:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:59,108 INFO L225 Difference]: With dead ends: 848 [2024-11-22 04:59:59,108 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 04:59:59,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:59,109 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 417 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:59,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 811 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 04:59:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 04:59:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.409356725146199) internal successors, (723), 513 states have internal predecessors, (723), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 04:59:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 735 transitions. [2024-11-22 04:59:59,131 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 735 transitions. Word has length 328 [2024-11-22 04:59:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:59,136 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 735 transitions. [2024-11-22 04:59:59,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 04:59:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 735 transitions. [2024-11-22 04:59:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-22 04:59:59,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:59,144 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:59,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:59:59,144 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:59,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:59,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1858109953, now seen corresponding path program 1 times [2024-11-22 04:59:59,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:59,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800134376] [2024-11-22 04:59:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:59,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800134376] [2024-11-22 05:00:00,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800134376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:00,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:00,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:00:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921274876] [2024-11-22 05:00:00,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:00,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:00:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:00:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:00:00,637 INFO L87 Difference]: Start difference. First operand 521 states and 735 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:00,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:00,706 INFO L93 Difference]: Finished difference Result 848 states and 1196 transitions. [2024-11-22 05:00:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:00:00,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 329 [2024-11-22 05:00:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:00,710 INFO L225 Difference]: With dead ends: 848 [2024-11-22 05:00:00,710 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 05:00:00,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:00,711 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 383 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:00,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1082 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:00:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 05:00:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 05:00:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4074074074074074) internal successors, (722), 513 states have internal predecessors, (722), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 05:00:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 734 transitions. [2024-11-22 05:00:00,730 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 734 transitions. Word has length 329 [2024-11-22 05:00:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:00,730 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 734 transitions. [2024-11-22 05:00:00,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 734 transitions. [2024-11-22 05:00:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-22 05:00:00,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:00,734 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 05:00:00,734 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1428435587, now seen corresponding path program 1 times [2024-11-22 05:00:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60071167] [2024-11-22 05:00:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:02,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:02,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60071167] [2024-11-22 05:00:02,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60071167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:02,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:02,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:02,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393252196] [2024-11-22 05:00:02,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:02,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:02,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:02,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:02,267 INFO L87 Difference]: Start difference. First operand 521 states and 734 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:02,373 INFO L93 Difference]: Finished difference Result 848 states and 1194 transitions. [2024-11-22 05:00:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:00:02,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 330 [2024-11-22 05:00:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:02,376 INFO L225 Difference]: With dead ends: 848 [2024-11-22 05:00:02,377 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 05:00:02,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:02,378 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 864 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:02,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1052 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:00:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 05:00:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 05:00:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.405458089668616) internal successors, (721), 513 states have internal predecessors, (721), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 05:00:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 733 transitions. [2024-11-22 05:00:02,396 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 733 transitions. Word has length 330 [2024-11-22 05:00:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:02,396 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 733 transitions. [2024-11-22 05:00:02,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 733 transitions. [2024-11-22 05:00:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-22 05:00:02,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:02,399 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:02,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 05:00:02,400 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:02,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:02,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1190140095, now seen corresponding path program 1 times [2024-11-22 05:00:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:02,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341484734] [2024-11-22 05:00:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:03,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:03,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341484734] [2024-11-22 05:00:03,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341484734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:03,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:03,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:03,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680524811] [2024-11-22 05:00:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:03,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:03,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:03,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:03,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:03,589 INFO L87 Difference]: Start difference. First operand 521 states and 733 transitions. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:03,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:03,694 INFO L93 Difference]: Finished difference Result 848 states and 1192 transitions. [2024-11-22 05:00:03,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:00:03,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 331 [2024-11-22 05:00:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:03,697 INFO L225 Difference]: With dead ends: 848 [2024-11-22 05:00:03,697 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 05:00:03,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:03,699 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 454 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:03,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1059 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:00:03,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 05:00:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 05:00:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4035087719298245) internal successors, (720), 513 states have internal predecessors, (720), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 05:00:03,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 732 transitions. [2024-11-22 05:00:03,717 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 732 transitions. Word has length 331 [2024-11-22 05:00:03,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:03,717 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 732 transitions. [2024-11-22 05:00:03,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 732 transitions. [2024-11-22 05:00:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-22 05:00:03,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:03,721 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:03,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 05:00:03,721 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:03,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1617238606, now seen corresponding path program 1 times [2024-11-22 05:00:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087785422] [2024-11-22 05:00:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:03,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:04,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:04,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087785422] [2024-11-22 05:00:04,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087785422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:04,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:04,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:04,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33094235] [2024-11-22 05:00:04,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:04,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:04,907 INFO L87 Difference]: Start difference. First operand 521 states and 732 transitions. Second operand has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:05,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:05,006 INFO L93 Difference]: Finished difference Result 848 states and 1190 transitions. [2024-11-22 05:00:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:00:05,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 332 [2024-11-22 05:00:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:05,009 INFO L225 Difference]: With dead ends: 848 [2024-11-22 05:00:05,009 INFO L226 Difference]: Without dead ends: 521 [2024-11-22 05:00:05,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:05,011 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 453 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:05,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1059 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:00:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-22 05:00:05,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-22 05:00:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 513 states have (on average 1.4015594541910332) internal successors, (719), 513 states have internal predecessors, (719), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 05:00:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 731 transitions. [2024-11-22 05:00:05,026 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 731 transitions. Word has length 332 [2024-11-22 05:00:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:05,027 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 731 transitions. [2024-11-22 05:00:05,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 731 transitions. [2024-11-22 05:00:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-22 05:00:05,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:05,030 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:05,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 05:00:05,030 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:05,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1911489104, now seen corresponding path program 1 times [2024-11-22 05:00:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282809759] [2024-11-22 05:00:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-22 05:00:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282809759] [2024-11-22 05:00:07,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282809759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:07,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:07,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800628348] [2024-11-22 05:00:07,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:07,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:07,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:07,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:07,064 INFO L87 Difference]: Start difference. First operand 521 states and 731 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:07,119 INFO L93 Difference]: Finished difference Result 942 states and 1304 transitions. [2024-11-22 05:00:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:00:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 333 [2024-11-22 05:00:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:07,122 INFO L225 Difference]: With dead ends: 942 [2024-11-22 05:00:07,122 INFO L226 Difference]: Without dead ends: 613 [2024-11-22 05:00:07,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:07,125 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 19 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:07,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2179 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:00:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-22 05:00:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 609. [2024-11-22 05:00:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 601 states have (on average 1.3727121464226288) internal successors, (825), 601 states have internal predecessors, (825), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 05:00:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 837 transitions. [2024-11-22 05:00:07,146 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 837 transitions. Word has length 333 [2024-11-22 05:00:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:07,147 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 837 transitions. [2024-11-22 05:00:07,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 837 transitions. [2024-11-22 05:00:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-22 05:00:07,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:07,151 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:07,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 05:00:07,151 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:07,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:07,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2098226244, now seen corresponding path program 1 times [2024-11-22 05:00:07,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:07,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106021644] [2024-11-22 05:00:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:07,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:08,690 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:08,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:08,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106021644] [2024-11-22 05:00:08,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106021644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:08,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:08,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:00:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210625872] [2024-11-22 05:00:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:08,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:00:08,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:08,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:00:08,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:08,693 INFO L87 Difference]: Start difference. First operand 609 states and 837 transitions. Second operand has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:09,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:09,281 INFO L93 Difference]: Finished difference Result 1429 states and 1970 transitions. [2024-11-22 05:00:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:00:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 335 [2024-11-22 05:00:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:09,286 INFO L225 Difference]: With dead ends: 1429 [2024-11-22 05:00:09,287 INFO L226 Difference]: Without dead ends: 1058 [2024-11-22 05:00:09,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:00:09,289 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 356 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:09,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 2324 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 05:00:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2024-11-22 05:00:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 936. [2024-11-22 05:00:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 925 states have (on average 1.3686486486486487) internal successors, (1266), 925 states have internal predecessors, (1266), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 05:00:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1284 transitions. [2024-11-22 05:00:09,323 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1284 transitions. Word has length 335 [2024-11-22 05:00:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:09,324 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1284 transitions. [2024-11-22 05:00:09,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1284 transitions. [2024-11-22 05:00:09,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-22 05:00:09,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:09,329 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:09,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 05:00:09,329 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:09,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1248794528, now seen corresponding path program 1 times [2024-11-22 05:00:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562754195] [2024-11-22 05:00:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:09,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 05:00:11,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:11,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562754195] [2024-11-22 05:00:11,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562754195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:11,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:11,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301753319] [2024-11-22 05:00:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:11,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:11,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:11,330 INFO L87 Difference]: Start difference. First operand 936 states and 1284 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 05:00:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:11,693 INFO L93 Difference]: Finished difference Result 1601 states and 2173 transitions. [2024-11-22 05:00:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:00:11,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 336 [2024-11-22 05:00:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:11,698 INFO L225 Difference]: With dead ends: 1601 [2024-11-22 05:00:11,698 INFO L226 Difference]: Without dead ends: 948 [2024-11-22 05:00:11,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:11,700 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 325 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:11,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1191 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 05:00:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-22 05:00:11,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 942. [2024-11-22 05:00:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 931 states have (on average 1.3662728249194414) internal successors, (1272), 931 states have internal predecessors, (1272), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 05:00:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1290 transitions. [2024-11-22 05:00:11,729 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1290 transitions. Word has length 336 [2024-11-22 05:00:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:11,730 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1290 transitions. [2024-11-22 05:00:11,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 05:00:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1290 transitions. [2024-11-22 05:00:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-22 05:00:11,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:11,736 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:11,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 05:00:11,737 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:11,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1046919232, now seen corresponding path program 1 times [2024-11-22 05:00:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:11,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19599257] [2024-11-22 05:00:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:11,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-22 05:00:12,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:12,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19599257] [2024-11-22 05:00:12,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19599257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:12,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:12,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:00:12,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096861204] [2024-11-22 05:00:12,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:12,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:00:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:12,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:00:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:00:12,929 INFO L87 Difference]: Start difference. First operand 942 states and 1290 transitions. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:13,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:13,213 INFO L93 Difference]: Finished difference Result 1597 states and 2163 transitions. [2024-11-22 05:00:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:00:13,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 336 [2024-11-22 05:00:13,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:13,219 INFO L225 Difference]: With dead ends: 1597 [2024-11-22 05:00:13,220 INFO L226 Difference]: Without dead ends: 942 [2024-11-22 05:00:13,222 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 [2024-11-22 05:00:13,222 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 504 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:13,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 802 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 05:00:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-22 05:00:13,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2024-11-22 05:00:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 931 states have (on average 1.359828141783029) internal successors, (1266), 931 states have internal predecessors, (1266), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 05:00:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1284 transitions. [2024-11-22 05:00:13,247 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1284 transitions. Word has length 336 [2024-11-22 05:00:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:13,247 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1284 transitions. [2024-11-22 05:00:13,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1284 transitions. [2024-11-22 05:00:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-22 05:00:13,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:13,251 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:13,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 05:00:13,251 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:13,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1511422696, now seen corresponding path program 1 times [2024-11-22 05:00:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663525406] [2024-11-22 05:00:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:14,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:14,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663525406] [2024-11-22 05:00:14,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663525406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:14,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:14,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:00:14,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106230661] [2024-11-22 05:00:14,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:14,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:00:14,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:14,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:00:14,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:14,747 INFO L87 Difference]: Start difference. First operand 942 states and 1284 transitions. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:15,284 INFO L93 Difference]: Finished difference Result 1338 states and 1828 transitions. [2024-11-22 05:00:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:00:15,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 338 [2024-11-22 05:00:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:15,289 INFO L225 Difference]: With dead ends: 1338 [2024-11-22 05:00:15,289 INFO L226 Difference]: Without dead ends: 965 [2024-11-22 05:00:15,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:00:15,290 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 765 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:15,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1576 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 05:00:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-22 05:00:15,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 943. [2024-11-22 05:00:15,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 932 states have (on average 1.359442060085837) internal successors, (1267), 932 states have internal predecessors, (1267), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 05:00:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1285 transitions. [2024-11-22 05:00:15,320 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1285 transitions. Word has length 338 [2024-11-22 05:00:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:15,321 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1285 transitions. [2024-11-22 05:00:15,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1285 transitions. [2024-11-22 05:00:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-22 05:00:15,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:15,328 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:15,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 05:00:15,331 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:15,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:15,331 INFO L85 PathProgramCache]: Analyzing trace with hash -467501087, now seen corresponding path program 1 times [2024-11-22 05:00:15,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:15,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481801425] [2024-11-22 05:00:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:15,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 05:00:16,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:16,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481801425] [2024-11-22 05:00:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481801425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:16,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:16,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 05:00:16,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014724166] [2024-11-22 05:00:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:16,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 05:00:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 05:00:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:00:16,883 INFO L87 Difference]: Start difference. First operand 943 states and 1285 transitions. Second operand has 8 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:17,058 INFO L93 Difference]: Finished difference Result 2126 states and 2889 transitions. [2024-11-22 05:00:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 05:00:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 338 [2024-11-22 05:00:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:17,067 INFO L225 Difference]: With dead ends: 2126 [2024-11-22 05:00:17,067 INFO L226 Difference]: Without dead ends: 1635 [2024-11-22 05:00:17,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-22 05:00:17,070 INFO L432 NwaCegarLoop]: 1313 mSDtfsCounter, 808 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 6937 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:17,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 6937 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:00:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2024-11-22 05:00:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1012. [2024-11-22 05:00:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 998 states have (on average 1.3627254509018036) internal successors, (1360), 998 states have internal predecessors, (1360), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 05:00:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1384 transitions. [2024-11-22 05:00:17,098 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1384 transitions. Word has length 338 [2024-11-22 05:00:17,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:17,098 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1384 transitions. [2024-11-22 05:00:17,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1384 transitions. [2024-11-22 05:00:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-22 05:00:17,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:17,102 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:17,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 05:00:17,103 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:17,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1921807987, now seen corresponding path program 1 times [2024-11-22 05:00:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:17,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323012417] [2024-11-22 05:00:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:17,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-22 05:00:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323012417] [2024-11-22 05:00:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323012417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:00:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331601484] [2024-11-22 05:00:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:18,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:00:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:00:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:00:18,814 INFO L87 Difference]: Start difference. First operand 1012 states and 1384 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 05:00:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:19,345 INFO L93 Difference]: Finished difference Result 1892 states and 2572 transitions. [2024-11-22 05:00:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:00:19,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 339 [2024-11-22 05:00:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:19,353 INFO L225 Difference]: With dead ends: 1892 [2024-11-22 05:00:19,353 INFO L226 Difference]: Without dead ends: 1020 [2024-11-22 05:00:19,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 05:00:19,356 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 511 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:19,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1557 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 05:00:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-22 05:00:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1016. [2024-11-22 05:00:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1002 states have (on average 1.3572854291417165) internal successors, (1360), 1002 states have internal predecessors, (1360), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 05:00:19,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1384 transitions. [2024-11-22 05:00:19,393 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1384 transitions. Word has length 339 [2024-11-22 05:00:19,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:19,394 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1384 transitions. [2024-11-22 05:00:19,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 05:00:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1384 transitions. [2024-11-22 05:00:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-22 05:00:19,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:19,399 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:19,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 05:00:19,400 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:19,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1578736179, now seen corresponding path program 1 times [2024-11-22 05:00:19,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:19,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117828384] [2024-11-22 05:00:19,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:19,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 82 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117828384] [2024-11-22 05:00:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117828384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393539907] [2024-11-22 05:00:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:00:21,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:00:21,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 05:00:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:22,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-22 05:00:22,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:00:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-22 05:00:23,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:00:23,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393539907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:23,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:00:23,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2024-11-22 05:00:23,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795025981] [2024-11-22 05:00:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:23,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 05:00:23,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 05:00:23,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-22 05:00:23,254 INFO L87 Difference]: Start difference. First operand 1016 states and 1384 transitions. Second operand has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 05:00:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:24,053 INFO L93 Difference]: Finished difference Result 1855 states and 2516 transitions. [2024-11-22 05:00:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 05:00:24,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 341 [2024-11-22 05:00:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:24,058 INFO L225 Difference]: With dead ends: 1855 [2024-11-22 05:00:24,058 INFO L226 Difference]: Without dead ends: 1036 [2024-11-22 05:00:24,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-22 05:00:24,062 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 494 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:24,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 3007 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 05:00:24,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-22 05:00:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1028. [2024-11-22 05:00:24,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1014 states have (on average 1.3451676528599605) internal successors, (1364), 1014 states have internal predecessors, (1364), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 05:00:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1388 transitions. [2024-11-22 05:00:24,087 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1388 transitions. Word has length 341 [2024-11-22 05:00:24,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:24,087 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1388 transitions. [2024-11-22 05:00:24,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 05:00:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1388 transitions. [2024-11-22 05:00:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-22 05:00:24,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:24,091 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:24,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 05:00:24,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-22 05:00:24,292 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:24,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:24,293 INFO L85 PathProgramCache]: Analyzing trace with hash 112765293, now seen corresponding path program 1 times [2024-11-22 05:00:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:24,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145038613] [2024-11-22 05:00:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:24,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 84 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:26,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:26,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145038613] [2024-11-22 05:00:26,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145038613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:26,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112112112] [2024-11-22 05:00:26,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:26,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:26,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:00:26,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:00:26,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 05:00:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:27,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 2055 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-22 05:00:27,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:00:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-22 05:00:28,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:00:28,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112112112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:28,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:00:28,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-22 05:00:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568727841] [2024-11-22 05:00:28,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:28,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:00:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:00:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-22 05:00:28,048 INFO L87 Difference]: Start difference. First operand 1028 states and 1388 transitions. Second operand has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 05:00:28,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:28,421 INFO L93 Difference]: Finished difference Result 1863 states and 2505 transitions. [2024-11-22 05:00:28,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 05:00:28,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 345 [2024-11-22 05:00:28,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:28,426 INFO L225 Difference]: With dead ends: 1863 [2024-11-22 05:00:28,426 INFO L226 Difference]: Without dead ends: 1044 [2024-11-22 05:00:28,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-22 05:00:28,428 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 494 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:28,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1528 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 05:00:28,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-22 05:00:28,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1040. [2024-11-22 05:00:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1026 states have (on average 1.341130604288499) internal successors, (1376), 1026 states have internal predecessors, (1376), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 05:00:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1400 transitions. [2024-11-22 05:00:28,454 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1400 transitions. Word has length 345 [2024-11-22 05:00:28,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:28,454 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1400 transitions. [2024-11-22 05:00:28,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 05:00:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1400 transitions. [2024-11-22 05:00:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-22 05:00:28,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:28,458 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:28,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 05:00:28,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:28,659 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2040544743, now seen corresponding path program 1 times [2024-11-22 05:00:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797244620] [2024-11-22 05:00:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 86 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:30,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:30,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797244620] [2024-11-22 05:00:30,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797244620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491221817] [2024-11-22 05:00:30,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:30,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:30,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:00:30,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:00:30,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 05:00:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:32,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 05:00:32,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:00:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 05:00:32,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:00:32,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491221817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:32,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:00:32,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-22 05:00:32,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281323303] [2024-11-22 05:00:32,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:32,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 05:00:32,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 05:00:32,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-22 05:00:32,246 INFO L87 Difference]: Start difference. First operand 1040 states and 1400 transitions. Second operand has 8 states, 8 states have (on average 40.25) internal successors, (322), 8 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:32,776 INFO L93 Difference]: Finished difference Result 2333 states and 3148 transitions. [2024-11-22 05:00:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:00:32,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.25) internal successors, (322), 8 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 349 [2024-11-22 05:00:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:32,782 INFO L225 Difference]: With dead ends: 2333 [2024-11-22 05:00:32,783 INFO L226 Difference]: Without dead ends: 1810 [2024-11-22 05:00:32,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-22 05:00:32,785 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 932 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:32,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 2353 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 05:00:32,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-22 05:00:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1464. [2024-11-22 05:00:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1441 states have (on average 1.3226925746009714) internal successors, (1906), 1441 states have internal predecessors, (1906), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 05:00:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1948 transitions. [2024-11-22 05:00:32,822 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1948 transitions. Word has length 349 [2024-11-22 05:00:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:32,822 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1948 transitions. [2024-11-22 05:00:32,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.25) internal successors, (322), 8 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1948 transitions. [2024-11-22 05:00:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-22 05:00:32,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:32,826 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:32,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 05:00:33,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 05:00:33,028 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:33,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1375062564, now seen corresponding path program 1 times [2024-11-22 05:00:33,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:33,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871912118] [2024-11-22 05:00:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:33,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-22 05:00:33,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:33,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871912118] [2024-11-22 05:00:33,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871912118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:00:33,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:00:33,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:00:33,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053011019] [2024-11-22 05:00:33,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:33,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:00:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:00:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:00:33,680 INFO L87 Difference]: Start difference. First operand 1464 states and 1948 transitions. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:33,729 INFO L93 Difference]: Finished difference Result 2267 states and 3025 transitions. [2024-11-22 05:00:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:00:33,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 349 [2024-11-22 05:00:33,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:33,735 INFO L225 Difference]: With dead ends: 2267 [2024-11-22 05:00:33,735 INFO L226 Difference]: Without dead ends: 1554 [2024-11-22 05:00:33,737 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 [2024-11-22 05:00:33,737 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 16 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:33,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2172 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:00:33,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2024-11-22 05:00:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1554. [2024-11-22 05:00:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1531 states have (on average 1.3298497713912476) internal successors, (2036), 1531 states have internal predecessors, (2036), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 05:00:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2078 transitions. [2024-11-22 05:00:33,794 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2078 transitions. Word has length 349 [2024-11-22 05:00:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:33,794 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 2078 transitions. [2024-11-22 05:00:33,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2078 transitions. [2024-11-22 05:00:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-22 05:00:33,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:33,799 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:33,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-22 05:00:33,799 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:33,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -391186458, now seen corresponding path program 1 times [2024-11-22 05:00:33,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252295293] [2024-11-22 05:00:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:33,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 86 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:35,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252295293] [2024-11-22 05:00:35,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252295293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352300651] [2024-11-22 05:00:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:00:35,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:00:35,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 05:00:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:37,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 05:00:37,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:00:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:37,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:00:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:37,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352300651] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:37,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 05:00:37,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 8] total 22 [2024-11-22 05:00:37,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277257626] [2024-11-22 05:00:37,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:00:37,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:00:37,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:00:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:00:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-22 05:00:37,804 INFO L87 Difference]: Start difference. First operand 1554 states and 2078 transitions. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:00:37,956 INFO L93 Difference]: Finished difference Result 2348 states and 3157 transitions. [2024-11-22 05:00:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 05:00:37,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 350 [2024-11-22 05:00:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:00:37,963 INFO L225 Difference]: With dead ends: 2348 [2024-11-22 05:00:37,963 INFO L226 Difference]: Without dead ends: 1950 [2024-11-22 05:00:37,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2024-11-22 05:00:37,965 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 354 mSDsluCounter, 4400 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:00:37,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 5370 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:00:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2024-11-22 05:00:38,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1747. [2024-11-22 05:00:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1721 states have (on average 1.3248111563044742) internal successors, (2280), 1721 states have internal predecessors, (2280), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 05:00:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2328 transitions. [2024-11-22 05:00:38,009 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2328 transitions. Word has length 350 [2024-11-22 05:00:38,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:00:38,010 INFO L471 AbstractCegarLoop]: Abstraction has 1747 states and 2328 transitions. [2024-11-22 05:00:38,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 05:00:38,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2328 transitions. [2024-11-22 05:00:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-22 05:00:38,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:00:38,014 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:00:38,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 05:00:38,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:38,215 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:00:38,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:00:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1872315501, now seen corresponding path program 1 times [2024-11-22 05:00:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:00:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070500638] [2024-11-22 05:00:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:00:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:00:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 87 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 05:00:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:00:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070500638] [2024-11-22 05:00:40,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070500638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:00:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703390696] [2024-11-22 05:00:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:00:40,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:00:40,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:00:40,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:00:40,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process