./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_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 52aaa0332eefa406b14bf0040bc722ffbb83771cf03ec10c7d17ac8a4e45d63a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 06:04:45,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 06:04:45,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 06:04:45,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 06:04:45,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 06:04:45,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 06:04:45,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 06:04:45,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 06:04:45,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 06:04:45,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 06:04:45,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 06:04:45,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 06:04:45,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 06:04:45,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 06:04:45,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 06:04:45,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 06:04:45,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 06:04:45,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 06:04:45,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 06:04:45,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 06:04:45,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 06:04:45,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 06:04:45,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 06:04:45,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 06:04:45,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 06:04:45,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 06:04:45,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 06:04:45,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 06:04:45,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 06:04:45,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:04:45,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 06:04:45,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 06:04:45,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 06:04:45,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 06:04:45,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 06:04:45,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 06:04:45,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 06:04:45,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 06:04:45,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 06:04:45,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52aaa0332eefa406b14bf0040bc722ffbb83771cf03ec10c7d17ac8a4e45d63a [2024-10-14 06:04:46,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 06:04:46,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 06:04:46,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 06:04:46,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 06:04:46,077 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 06:04:46,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-10-14 06:04:47,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 06:04:47,815 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 06:04:47,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-10-14 06:04:47,826 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f443b7c/bfe71e87845f40fe93e49b19489463e3/FLAG825d6380e [2024-10-14 06:04:48,180 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f443b7c/bfe71e87845f40fe93e49b19489463e3 [2024-10-14 06:04:48,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 06:04:48,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 06:04:48,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 06:04:48,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 06:04:48,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 06:04:48,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:48,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4260c068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48, skipping insertion in model container [2024-10-14 06:04:48,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:48,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 06:04:48,398 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c[1335,1348] [2024-10-14 06:04:48,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:04:48,743 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 06:04:48,759 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c[1335,1348] [2024-10-14 06:04:48,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:04:48,890 INFO L204 MainTranslator]: Completed translation [2024-10-14 06:04:48,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48 WrapperNode [2024-10-14 06:04:48,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 06:04:48,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 06:04:48,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 06:04:48,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 06:04:48,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:48,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,103 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-10-14 06:04:49,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 06:04:49,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 06:04:49,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 06:04:49,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 06:04:49,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,225 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 06:04:49,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 06:04:49,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 06:04:49,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 06:04:49,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 06:04:49,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (1/1) ... [2024-10-14 06:04:49,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:04:49,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:04:49,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 06:04:49,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 06:04:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 06:04:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 06:04:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 06:04:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 06:04:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 06:04:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 06:04:49,777 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 06:04:49,780 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 06:04:51,655 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-10-14 06:04:51,656 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 06:04:51,720 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 06:04:51,723 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 06:04:51,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:04:51 BoogieIcfgContainer [2024-10-14 06:04:51,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 06:04:51,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 06:04:51,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 06:04:51,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 06:04:51,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:04:48" (1/3) ... [2024-10-14 06:04:51,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0657af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:04:51, skipping insertion in model container [2024-10-14 06:04:51,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:04:48" (2/3) ... [2024-10-14 06:04:51,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0657af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:04:51, skipping insertion in model container [2024-10-14 06:04:51,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:04:51" (3/3) ... [2024-10-14 06:04:51,736 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-10-14 06:04:51,756 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 06:04:51,756 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 06:04:51,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 06:04:51,849 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;@628fd783, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 06:04:51,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 06:04:51,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 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) [2024-10-14 06:04:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 06:04:51,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:51,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:51,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:51,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:51,884 INFO L85 PathProgramCache]: Analyzing trace with hash -185767001, now seen corresponding path program 1 times [2024-10-14 06:04:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797362911] [2024-10-14 06:04:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:52,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:52,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:52,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:52,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:52,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797362911] [2024-10-14 06:04:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797362911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:52,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 06:04:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769416157] [2024-10-14 06:04:52,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:52,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 06:04:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:52,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 06:04:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 06:04:52,375 INFO L87 Difference]: Start difference. First operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 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 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:04:52,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:52,444 INFO L93 Difference]: Finished difference Result 996 states and 1490 transitions. [2024-10-14 06:04:52,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 06:04:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 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 148 [2024-10-14 06:04:52,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:52,457 INFO L225 Difference]: With dead ends: 996 [2024-10-14 06:04:52,458 INFO L226 Difference]: Without dead ends: 548 [2024-10-14 06:04:52,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 06:04:52,464 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:52,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:04:52,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-14 06:04:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-10-14 06:04:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.4917127071823204) internal successors, (810), 543 states have internal predecessors, (810), 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) [2024-10-14 06:04:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 816 transitions. [2024-10-14 06:04:52,533 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 816 transitions. Word has length 148 [2024-10-14 06:04:52,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:52,533 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 816 transitions. [2024-10-14 06:04:52,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:04:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 816 transitions. [2024-10-14 06:04:52,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 06:04:52,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:52,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:52,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 06:04:52,539 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:52,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:52,540 INFO L85 PathProgramCache]: Analyzing trace with hash 386034401, now seen corresponding path program 1 times [2024-10-14 06:04:52,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:52,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058302651] [2024-10-14 06:04:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:52,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:53,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:53,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:53,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:53,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058302651] [2024-10-14 06:04:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058302651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:53,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:53,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:04:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743640964] [2024-10-14 06:04:53,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:53,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:04:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:04:53,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:53,514 INFO L87 Difference]: Start difference. First operand 548 states and 816 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-10-14 06:04:53,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:53,569 INFO L93 Difference]: Finished difference Result 552 states and 820 transitions. [2024-10-14 06:04:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:53,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 148 [2024-10-14 06:04:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:53,575 INFO L225 Difference]: With dead ends: 552 [2024-10-14 06:04:53,576 INFO L226 Difference]: Without dead ends: 550 [2024-10-14 06:04:53,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:53,579 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 0 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:53,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2434 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:04:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-14 06:04:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-14 06:04:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 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) [2024-10-14 06:04:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-10-14 06:04:53,608 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 148 [2024-10-14 06:04:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:53,609 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-10-14 06:04:53,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-10-14 06:04:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-10-14 06:04:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 06:04:53,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:53,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:53,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 06:04:53,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:53,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash -916139479, now seen corresponding path program 1 times [2024-10-14 06:04:53,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:53,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050838871] [2024-10-14 06:04:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:54,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:54,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050838871] [2024-10-14 06:04:54,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050838871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:54,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:54,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:54,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781400648] [2024-10-14 06:04:54,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:54,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:54,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:54,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:54,113 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-10-14 06:04:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:54,512 INFO L93 Difference]: Finished difference Result 1370 states and 2040 transitions. [2024-10-14 06:04:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:04:54,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 149 [2024-10-14 06:04:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:54,515 INFO L225 Difference]: With dead ends: 1370 [2024-10-14 06:04:54,516 INFO L226 Difference]: Without dead ends: 550 [2024-10-14 06:04:54,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:04:54,518 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 1618 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:54,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2346 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:04:54,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-14 06:04:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-14 06:04:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4880733944954128) internal successors, (811), 545 states have internal predecessors, (811), 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) [2024-10-14 06:04:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 817 transitions. [2024-10-14 06:04:54,529 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 817 transitions. Word has length 149 [2024-10-14 06:04:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:54,530 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 817 transitions. [2024-10-14 06:04:54,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-10-14 06:04:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 817 transitions. [2024-10-14 06:04:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 06:04:54,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:54,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:54,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 06:04:54,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:54,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:54,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961565, now seen corresponding path program 1 times [2024-10-14 06:04:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:54,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687548658] [2024-10-14 06:04:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:54,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:54,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687548658] [2024-10-14 06:04:54,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687548658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:54,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:54,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:04:54,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412965118] [2024-10-14 06:04:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:54,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:04:54,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:04:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:54,955 INFO L87 Difference]: Start difference. First operand 550 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-10-14 06:04:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:54,992 INFO L93 Difference]: Finished difference Result 1001 states and 1486 transitions. [2024-10-14 06:04:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:54,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 150 [2024-10-14 06:04:54,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:54,996 INFO L225 Difference]: With dead ends: 1001 [2024-10-14 06:04:54,996 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:54,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:54,999 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 0 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:55,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2428 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:04:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:55,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4862888482632541) internal successors, (813), 547 states have internal predecessors, (813), 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) [2024-10-14 06:04:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 819 transitions. [2024-10-14 06:04:55,013 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 819 transitions. Word has length 150 [2024-10-14 06:04:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:55,013 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 819 transitions. [2024-10-14 06:04:55,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-10-14 06:04:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 819 transitions. [2024-10-14 06:04:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 06:04:55,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:55,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:55,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 06:04:55,016 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:55,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1995703104, now seen corresponding path program 1 times [2024-10-14 06:04:55,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187995074] [2024-10-14 06:04:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:55,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:55,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:55,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:55,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:55,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:55,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187995074] [2024-10-14 06:04:55,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187995074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:55,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:55,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:04:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710617444] [2024-10-14 06:04:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:55,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:04:55,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:04:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:55,566 INFO L87 Difference]: Start difference. First operand 552 states and 819 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-10-14 06:04:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:55,677 INFO L93 Difference]: Finished difference Result 1003 states and 1487 transitions. [2024-10-14 06:04:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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 151 [2024-10-14 06:04:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:55,680 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:55,680 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:55,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:55,682 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 702 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:55,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1546 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4844606946983547) internal successors, (812), 547 states have internal predecessors, (812), 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) [2024-10-14 06:04:55,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 818 transitions. [2024-10-14 06:04:55,696 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 818 transitions. Word has length 151 [2024-10-14 06:04:55,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:55,697 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 818 transitions. [2024-10-14 06:04:55,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-10-14 06:04:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 818 transitions. [2024-10-14 06:04:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 06:04:55,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:55,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:55,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 06:04:55,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:55,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:55,703 INFO L85 PathProgramCache]: Analyzing trace with hash -334083056, now seen corresponding path program 1 times [2024-10-14 06:04:55,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:55,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362429167] [2024-10-14 06:04:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:55,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:56,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:56,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362429167] [2024-10-14 06:04:56,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362429167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:56,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:56,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:56,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233453662] [2024-10-14 06:04:56,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:56,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:56,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:56,114 INFO L87 Difference]: Start difference. First operand 552 states and 818 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-14 06:04:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:56,203 INFO L93 Difference]: Finished difference Result 1009 states and 1493 transitions. [2024-10-14 06:04:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:04:56,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 152 [2024-10-14 06:04:56,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:56,206 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:04:56,206 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:56,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:04:56,208 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 713 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:56,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 2385 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:56,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.482632541133455) internal successors, (811), 547 states have internal predecessors, (811), 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) [2024-10-14 06:04:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 817 transitions. [2024-10-14 06:04:56,218 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 817 transitions. Word has length 152 [2024-10-14 06:04:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:56,219 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 817 transitions. [2024-10-14 06:04:56,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-10-14 06:04:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 817 transitions. [2024-10-14 06:04:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 06:04:56,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:56,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:56,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 06:04:56,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:56,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1729904971, now seen corresponding path program 1 times [2024-10-14 06:04:56,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:56,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249701128] [2024-10-14 06:04:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:56,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:56,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249701128] [2024-10-14 06:04:56,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249701128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:56,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056164308] [2024-10-14 06:04:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:56,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:56,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:56,521 INFO L87 Difference]: Start difference. First operand 552 states and 817 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-14 06:04:56,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:56,618 INFO L93 Difference]: Finished difference Result 1003 states and 1483 transitions. [2024-10-14 06:04:56,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:56,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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 153 [2024-10-14 06:04:56,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:56,621 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:56,621 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:56,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:04:56,622 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 802 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:56,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1552 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:56,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4808043875685557) internal successors, (810), 547 states have internal predecessors, (810), 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) [2024-10-14 06:04:56,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 816 transitions. [2024-10-14 06:04:56,635 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 816 transitions. Word has length 153 [2024-10-14 06:04:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:56,635 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 816 transitions. [2024-10-14 06:04:56,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-10-14 06:04:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 816 transitions. [2024-10-14 06:04:56,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 06:04:56,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:56,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:56,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 06:04:56,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:56,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 871281751, now seen corresponding path program 1 times [2024-10-14 06:04:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:56,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893744905] [2024-10-14 06:04:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:56,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:56,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:56,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893744905] [2024-10-14 06:04:56,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893744905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:56,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:56,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:56,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251064581] [2024-10-14 06:04:56,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:56,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:56,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:56,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:56,956 INFO L87 Difference]: Start difference. First operand 552 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2024-10-14 06:04:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:57,055 INFO L93 Difference]: Finished difference Result 1003 states and 1481 transitions. [2024-10-14 06:04:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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 154 [2024-10-14 06:04:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:57,058 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:57,058 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:57,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:04:57,059 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 798 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:57,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1552 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:57,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4789762340036563) internal successors, (809), 547 states have internal predecessors, (809), 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) [2024-10-14 06:04:57,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 815 transitions. [2024-10-14 06:04:57,073 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 815 transitions. Word has length 154 [2024-10-14 06:04:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:57,074 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 815 transitions. [2024-10-14 06:04:57,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2024-10-14 06:04:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 815 transitions. [2024-10-14 06:04:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 06:04:57,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:57,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:57,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 06:04:57,077 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:57,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:57,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1040354958, now seen corresponding path program 1 times [2024-10-14 06:04:57,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:57,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321206047] [2024-10-14 06:04:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:57,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:57,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:57,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:57,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:57,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:57,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321206047] [2024-10-14 06:04:57,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321206047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:57,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:57,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:04:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748612625] [2024-10-14 06:04:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:57,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:04:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:57,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:04:57,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:04:57,494 INFO L87 Difference]: Start difference. First operand 552 states and 815 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-10-14 06:04:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:57,636 INFO L93 Difference]: Finished difference Result 1003 states and 1479 transitions. [2024-10-14 06:04:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 155 [2024-10-14 06:04:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:57,639 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:57,639 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:57,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:57,640 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 686 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:57,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1458 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:57,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.477148080438757) internal successors, (808), 547 states have internal predecessors, (808), 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) [2024-10-14 06:04:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 814 transitions. [2024-10-14 06:04:57,651 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 814 transitions. Word has length 155 [2024-10-14 06:04:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:57,652 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 814 transitions. [2024-10-14 06:04:57,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-10-14 06:04:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 814 transitions. [2024-10-14 06:04:57,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 06:04:57,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:57,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:57,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 06:04:57,653 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:57,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash -158861950, now seen corresponding path program 1 times [2024-10-14 06:04:57,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:57,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941430745] [2024-10-14 06:04:57,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:57,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:58,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941430745] [2024-10-14 06:04:58,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941430745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:58,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:58,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:58,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134877044] [2024-10-14 06:04:58,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:58,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:58,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:58,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:58,094 INFO L87 Difference]: Start difference. First operand 552 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-10-14 06:04:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:58,337 INFO L93 Difference]: Finished difference Result 1009 states and 1485 transitions. [2024-10-14 06:04:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:04:58,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 156 [2024-10-14 06:04:58,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:58,340 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:04:58,340 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:58,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:04:58,341 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 697 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:58,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2333 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:04:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:58,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4753199268738575) internal successors, (807), 547 states have internal predecessors, (807), 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) [2024-10-14 06:04:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 813 transitions. [2024-10-14 06:04:58,353 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 813 transitions. Word has length 156 [2024-10-14 06:04:58,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:58,353 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 813 transitions. [2024-10-14 06:04:58,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-10-14 06:04:58,354 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 813 transitions. [2024-10-14 06:04:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-14 06:04:58,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:58,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:58,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 06:04:58,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:58,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash -401911171, now seen corresponding path program 1 times [2024-10-14 06:04:58,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:58,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968661354] [2024-10-14 06:04:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:58,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:58,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968661354] [2024-10-14 06:04:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968661354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:58,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:58,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:58,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680903817] [2024-10-14 06:04:58,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:58,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:58,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:58,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:58,694 INFO L87 Difference]: Start difference. First operand 552 states and 813 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-10-14 06:04:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:58,934 INFO L93 Difference]: Finished difference Result 1003 states and 1475 transitions. [2024-10-14 06:04:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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 157 [2024-10-14 06:04:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:58,936 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:58,936 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:58,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:04:58,942 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 798 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:58,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1464 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:04:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:58,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4734917733089579) internal successors, (806), 547 states have internal predecessors, (806), 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) [2024-10-14 06:04:58,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 812 transitions. [2024-10-14 06:04:58,970 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 812 transitions. Word has length 157 [2024-10-14 06:04:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:58,971 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 812 transitions. [2024-10-14 06:04:58,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 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) [2024-10-14 06:04:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 812 transitions. [2024-10-14 06:04:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-14 06:04:58,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:58,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:58,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 06:04:58,972 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:58,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash -959173431, now seen corresponding path program 1 times [2024-10-14 06:04:58,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:58,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801047543] [2024-10-14 06:04:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:58,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:59,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:04:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:59,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:04:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:04:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:04:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:04:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:04:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801047543] [2024-10-14 06:04:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801047543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:04:59,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:04:59,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:04:59,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627112455] [2024-10-14 06:04:59,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:04:59,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:04:59,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:04:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:04:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:04:59,624 INFO L87 Difference]: Start difference. First operand 552 states and 812 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2024-10-14 06:04:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:04:59,768 INFO L93 Difference]: Finished difference Result 1003 states and 1473 transitions. [2024-10-14 06:04:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:04:59,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 158 [2024-10-14 06:04:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:04:59,770 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:04:59,771 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:04:59,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:04:59,772 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 794 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:04:59,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1464 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:04:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:04:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:04:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 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) [2024-10-14 06:04:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-10-14 06:04:59,783 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 158 [2024-10-14 06:04:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:04:59,783 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-10-14 06:04:59,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2024-10-14 06:04:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-10-14 06:04:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-14 06:04:59,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:04:59,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:04:59,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 06:04:59,785 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:04:59,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:04:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1672871516, now seen corresponding path program 1 times [2024-10-14 06:04:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:04:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912776246] [2024-10-14 06:04:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:04:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:04:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:00,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912776246] [2024-10-14 06:05:00,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912776246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:00,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:00,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017372423] [2024-10-14 06:05:00,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:00,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:00,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:00,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:00,119 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2024-10-14 06:05:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:00,251 INFO L93 Difference]: Finished difference Result 1003 states and 1471 transitions. [2024-10-14 06:05:00,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:00,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 159 [2024-10-14 06:05:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:00,254 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:00,254 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:00,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:00,256 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1461 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:00,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1458 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.469835466179159) internal successors, (804), 547 states have internal predecessors, (804), 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) [2024-10-14 06:05:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 810 transitions. [2024-10-14 06:05:00,269 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 810 transitions. Word has length 159 [2024-10-14 06:05:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:00,269 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 810 transitions. [2024-10-14 06:05:00,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2024-10-14 06:05:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 810 transitions. [2024-10-14 06:05:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-14 06:05:00,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:00,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:00,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 06:05:00,271 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:00,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash 925686153, now seen corresponding path program 1 times [2024-10-14 06:05:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:00,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448128882] [2024-10-14 06:05:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:00,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:00,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448128882] [2024-10-14 06:05:00,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448128882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:00,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:00,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:00,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404994794] [2024-10-14 06:05:00,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:00,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:00,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:00,663 INFO L87 Difference]: Start difference. First operand 552 states and 810 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2024-10-14 06:05:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:00,824 INFO L93 Difference]: Finished difference Result 1003 states and 1469 transitions. [2024-10-14 06:05:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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 160 [2024-10-14 06:05:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:00,827 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:00,827 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:00,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:00,829 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 783 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:00,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1464 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4680073126142597) internal successors, (803), 547 states have internal predecessors, (803), 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) [2024-10-14 06:05:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 809 transitions. [2024-10-14 06:05:00,841 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 809 transitions. Word has length 160 [2024-10-14 06:05:00,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:00,841 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 809 transitions. [2024-10-14 06:05:00,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2024-10-14 06:05:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 809 transitions. [2024-10-14 06:05:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 06:05:00,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:00,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:00,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 06:05:00,843 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:00,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1086953085, now seen corresponding path program 1 times [2024-10-14 06:05:00,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:00,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432387309] [2024-10-14 06:05:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:01,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:01,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432387309] [2024-10-14 06:05:01,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432387309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:01,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:01,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940622335] [2024-10-14 06:05:01,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:01,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:01,140 INFO L87 Difference]: Start difference. First operand 552 states and 809 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2024-10-14 06:05:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:01,280 INFO L93 Difference]: Finished difference Result 1003 states and 1467 transitions. [2024-10-14 06:05:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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 161 [2024-10-14 06:05:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:01,283 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:01,283 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:01,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:01,285 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1445 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:01,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1458 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4661791590493602) internal successors, (802), 547 states have internal predecessors, (802), 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) [2024-10-14 06:05:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 808 transitions. [2024-10-14 06:05:01,296 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 808 transitions. Word has length 161 [2024-10-14 06:05:01,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:01,297 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 808 transitions. [2024-10-14 06:05:01,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2024-10-14 06:05:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 808 transitions. [2024-10-14 06:05:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 06:05:01,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:01,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:01,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 06:05:01,299 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:01,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1586247038, now seen corresponding path program 1 times [2024-10-14 06:05:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835286396] [2024-10-14 06:05:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:01,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835286396] [2024-10-14 06:05:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835286396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805965540] [2024-10-14 06:05:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:01,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:01,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:01,625 INFO L87 Difference]: Start difference. First operand 552 states and 808 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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) [2024-10-14 06:05:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:01,802 INFO L93 Difference]: Finished difference Result 1003 states and 1465 transitions. [2024-10-14 06:05:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:01,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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 162 [2024-10-14 06:05:01,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:01,807 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:01,807 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:01,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:01,808 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1437 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:01,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1458 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:01,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4643510054844606) internal successors, (801), 547 states have internal predecessors, (801), 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) [2024-10-14 06:05:01,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 807 transitions. [2024-10-14 06:05:01,823 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 807 transitions. Word has length 162 [2024-10-14 06:05:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:01,823 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 807 transitions. [2024-10-14 06:05:01,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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) [2024-10-14 06:05:01,823 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 807 transitions. [2024-10-14 06:05:01,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 06:05:01,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:01,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:01,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 06:05:01,825 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:01,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1194570710, now seen corresponding path program 1 times [2024-10-14 06:05:01,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:01,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365061989] [2024-10-14 06:05:01,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:01,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:02,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:02,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365061989] [2024-10-14 06:05:02,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365061989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:02,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:02,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:02,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661739101] [2024-10-14 06:05:02,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:02,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:02,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:02,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:02,336 INFO L87 Difference]: Start difference. First operand 552 states and 807 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-10-14 06:05:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:02,397 INFO L93 Difference]: Finished difference Result 1003 states and 1463 transitions. [2024-10-14 06:05:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 163 [2024-10-14 06:05:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:02,400 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:02,400 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:02,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:02,401 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 737 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:02,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1574 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4625228519195612) internal successors, (800), 547 states have internal predecessors, (800), 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) [2024-10-14 06:05:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 806 transitions. [2024-10-14 06:05:02,417 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 806 transitions. Word has length 163 [2024-10-14 06:05:02,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:02,418 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 806 transitions. [2024-10-14 06:05:02,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-10-14 06:05:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 806 transitions. [2024-10-14 06:05:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-14 06:05:02,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:02,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:02,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 06:05:02,420 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:02,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 72051478, now seen corresponding path program 1 times [2024-10-14 06:05:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274217216] [2024-10-14 06:05:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 06:05:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 06:05:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:02,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:02,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274217216] [2024-10-14 06:05:02,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274217216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:02,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:02,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:02,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631236388] [2024-10-14 06:05:02,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:02,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:02,900 INFO L87 Difference]: Start difference. First operand 552 states and 806 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-10-14 06:05:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:02,957 INFO L93 Difference]: Finished difference Result 1003 states and 1461 transitions. [2024-10-14 06:05:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 164 [2024-10-14 06:05:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:02,959 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:02,959 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:02,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:02,961 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 697 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:02,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1560 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:02,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4588665447897624) internal successors, (798), 547 states have internal predecessors, (798), 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) [2024-10-14 06:05:02,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 804 transitions. [2024-10-14 06:05:02,974 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 804 transitions. Word has length 164 [2024-10-14 06:05:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:02,974 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 804 transitions. [2024-10-14 06:05:02,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-10-14 06:05:02,975 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 804 transitions. [2024-10-14 06:05:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 06:05:02,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:02,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:02,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 06:05:02,977 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:02,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 858853523, now seen corresponding path program 1 times [2024-10-14 06:05:02,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:02,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999748692] [2024-10-14 06:05:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:02,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 06:05:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 06:05:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:03,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:03,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999748692] [2024-10-14 06:05:03,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999748692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:03,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:03,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706713118] [2024-10-14 06:05:03,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:03,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:03,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:03,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:03,424 INFO L87 Difference]: Start difference. First operand 552 states and 804 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2024-10-14 06:05:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:03,478 INFO L93 Difference]: Finished difference Result 1003 states and 1457 transitions. [2024-10-14 06:05:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:03,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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 166 [2024-10-14 06:05:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:03,481 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:03,481 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:03,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:03,482 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 1478 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:03,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1560 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4570383912248628) internal successors, (797), 547 states have internal predecessors, (797), 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) [2024-10-14 06:05:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 803 transitions. [2024-10-14 06:05:03,493 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 803 transitions. Word has length 166 [2024-10-14 06:05:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:03,493 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 803 transitions. [2024-10-14 06:05:03,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2024-10-14 06:05:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 803 transitions. [2024-10-14 06:05:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-14 06:05:03,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:03,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:03,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 06:05:03,495 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:03,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash 873646117, now seen corresponding path program 1 times [2024-10-14 06:05:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:03,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819335548] [2024-10-14 06:05:03,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:03,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 06:05:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 06:05:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:03,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819335548] [2024-10-14 06:05:03,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819335548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:03,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:03,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:03,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192289322] [2024-10-14 06:05:03,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:03,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:03,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:03,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:03,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:03,979 INFO L87 Difference]: Start difference. First operand 552 states and 803 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-10-14 06:05:04,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:04,038 INFO L93 Difference]: Finished difference Result 1003 states and 1455 transitions. [2024-10-14 06:05:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:04,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 167 [2024-10-14 06:05:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:04,040 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:04,040 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:04,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:04,042 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 732 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:04,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1568 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4552102376599634) internal successors, (796), 547 states have internal predecessors, (796), 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) [2024-10-14 06:05:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 802 transitions. [2024-10-14 06:05:04,061 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 802 transitions. Word has length 167 [2024-10-14 06:05:04,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:04,061 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 802 transitions. [2024-10-14 06:05:04,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-10-14 06:05:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 802 transitions. [2024-10-14 06:05:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-14 06:05:04,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:04,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:04,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 06:05:04,067 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:04,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:04,068 INFO L85 PathProgramCache]: Analyzing trace with hash -48804542, now seen corresponding path program 1 times [2024-10-14 06:05:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:04,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711164536] [2024-10-14 06:05:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:04,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:05,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:05,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711164536] [2024-10-14 06:05:05,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711164536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:05,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:05,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478626129] [2024-10-14 06:05:05,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:05,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:05,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:05,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:05,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:05,089 INFO L87 Difference]: Start difference. First operand 552 states and 802 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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) [2024-10-14 06:05:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:05,297 INFO L93 Difference]: Finished difference Result 1009 states and 1461 transitions. [2024-10-14 06:05:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:05,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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 168 [2024-10-14 06:05:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:05,301 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:05,301 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:05,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:05,302 INFO L432 NwaCegarLoop]: 791 mSDtfsCounter, 2 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:05,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2974 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:05,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 554. [2024-10-14 06:05:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.453551912568306) internal successors, (798), 549 states have internal predecessors, (798), 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) [2024-10-14 06:05:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 804 transitions. [2024-10-14 06:05:05,315 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 804 transitions. Word has length 168 [2024-10-14 06:05:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:05,315 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 804 transitions. [2024-10-14 06:05:05,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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) [2024-10-14 06:05:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 804 transitions. [2024-10-14 06:05:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-14 06:05:05,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:05,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:05,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 06:05:05,317 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:05,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:05,318 INFO L85 PathProgramCache]: Analyzing trace with hash 123417717, now seen corresponding path program 1 times [2024-10-14 06:05:05,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:05,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686812758] [2024-10-14 06:05:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:05,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:05,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686812758] [2024-10-14 06:05:05,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686812758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:05,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:05,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:05,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635143201] [2024-10-14 06:05:05,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:05,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:05,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:05,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:05,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:05,721 INFO L87 Difference]: Start difference. First operand 554 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-10-14 06:05:05,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:05,812 INFO L93 Difference]: Finished difference Result 1007 states and 1457 transitions. [2024-10-14 06:05:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 169 [2024-10-14 06:05:05,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:05,816 INFO L225 Difference]: With dead ends: 1007 [2024-10-14 06:05:05,817 INFO L226 Difference]: Without dead ends: 554 [2024-10-14 06:05:05,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:05,818 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 684 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:05,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1520 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-14 06:05:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-14 06:05:05,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4517304189435336) internal successors, (797), 549 states have internal predecessors, (797), 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) [2024-10-14 06:05:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 803 transitions. [2024-10-14 06:05:05,832 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 803 transitions. Word has length 169 [2024-10-14 06:05:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:05,832 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 803 transitions. [2024-10-14 06:05:05,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-10-14 06:05:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 803 transitions. [2024-10-14 06:05:05,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 06:05:05,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:05,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:05,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 06:05:05,834 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:05,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:05,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1787117121, now seen corresponding path program 1 times [2024-10-14 06:05:05,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:05,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316055281] [2024-10-14 06:05:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:06,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:06,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316055281] [2024-10-14 06:05:06,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316055281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:06,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:06,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454166838] [2024-10-14 06:05:06,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:06,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:06,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:06,285 INFO L87 Difference]: Start difference. First operand 554 states and 803 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 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) [2024-10-14 06:05:06,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:06,384 INFO L93 Difference]: Finished difference Result 1007 states and 1455 transitions. [2024-10-14 06:05:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:06,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 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 170 [2024-10-14 06:05:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:06,387 INFO L225 Difference]: With dead ends: 1007 [2024-10-14 06:05:06,387 INFO L226 Difference]: Without dead ends: 554 [2024-10-14 06:05:06,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:06,388 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 682 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:06,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1526 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-14 06:05:06,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-14 06:05:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4499089253187614) internal successors, (796), 549 states have internal predecessors, (796), 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) [2024-10-14 06:05:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 802 transitions. [2024-10-14 06:05:06,400 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 802 transitions. Word has length 170 [2024-10-14 06:05:06,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:06,400 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 802 transitions. [2024-10-14 06:05:06,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 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) [2024-10-14 06:05:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 802 transitions. [2024-10-14 06:05:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 06:05:06,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:06,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:06,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 06:05:06,402 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:06,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 803910454, now seen corresponding path program 1 times [2024-10-14 06:05:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:06,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609233160] [2024-10-14 06:05:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:06,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609233160] [2024-10-14 06:05:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609233160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:06,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:06,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:06,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453863944] [2024-10-14 06:05:06,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:06,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:06,808 INFO L87 Difference]: Start difference. First operand 554 states and 802 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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) [2024-10-14 06:05:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:06,909 INFO L93 Difference]: Finished difference Result 1007 states and 1453 transitions. [2024-10-14 06:05:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:06,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 171 [2024-10-14 06:05:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:06,911 INFO L225 Difference]: With dead ends: 1007 [2024-10-14 06:05:06,911 INFO L226 Difference]: Without dead ends: 554 [2024-10-14 06:05:06,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:06,913 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 1354 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:06,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 1520 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-10-14 06:05:06,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-10-14 06:05:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4480874316939891) internal successors, (795), 549 states have internal predecessors, (795), 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) [2024-10-14 06:05:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 801 transitions. [2024-10-14 06:05:06,924 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 801 transitions. Word has length 171 [2024-10-14 06:05:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:06,924 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 801 transitions. [2024-10-14 06:05:06,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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) [2024-10-14 06:05:06,925 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 801 transitions. [2024-10-14 06:05:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 06:05:06,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:06,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:06,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 06:05:06,926 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:06,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2033316542, now seen corresponding path program 1 times [2024-10-14 06:05:06,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:06,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250979159] [2024-10-14 06:05:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:06,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:08,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:08,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:08,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:08,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250979159] [2024-10-14 06:05:08,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250979159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:08,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:08,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68381686] [2024-10-14 06:05:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:08,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:08,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:08,057 INFO L87 Difference]: Start difference. First operand 554 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2024-10-14 06:05:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:08,563 INFO L93 Difference]: Finished difference Result 1009 states and 1454 transitions. [2024-10-14 06:05:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 172 [2024-10-14 06:05:08,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:08,566 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:08,566 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:08,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:08,567 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 696 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:08,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1806 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:08,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2024-10-14 06:05:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 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) [2024-10-14 06:05:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-10-14 06:05:08,579 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-10-14 06:05:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:08,579 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-10-14 06:05:08,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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) [2024-10-14 06:05:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-10-14 06:05:08,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 06:05:08,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:08,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 06:05:08,581 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1893662121, now seen corresponding path program 1 times [2024-10-14 06:05:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:08,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368645127] [2024-10-14 06:05:08,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:09,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:09,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368645127] [2024-10-14 06:05:09,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368645127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:09,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:09,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838998674] [2024-10-14 06:05:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:09,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:09,224 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-14 06:05:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:09,518 INFO L93 Difference]: Finished difference Result 1078 states and 1535 transitions. [2024-10-14 06:05:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:05:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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 172 [2024-10-14 06:05:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:09,520 INFO L225 Difference]: With dead ends: 1078 [2024-10-14 06:05:09,520 INFO L226 Difference]: Without dead ends: 620 [2024-10-14 06:05:09,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:05:09,522 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 80 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:09,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 3942 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:05:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-10-14 06:05:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 555. [2024-10-14 06:05:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 550 states have internal predecessors, (795), 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) [2024-10-14 06:05:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-10-14 06:05:09,533 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 172 [2024-10-14 06:05:09,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:09,533 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-10-14 06:05:09,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-14 06:05:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-10-14 06:05:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 06:05:09,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:09,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:09,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 06:05:09,535 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:09,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:09,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1051170100, now seen corresponding path program 1 times [2024-10-14 06:05:09,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:09,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617551579] [2024-10-14 06:05:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:09,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:09,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:09,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617551579] [2024-10-14 06:05:09,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617551579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:09,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:09,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:09,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100900656] [2024-10-14 06:05:09,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:09,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:09,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:09,858 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 06:05:09,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:09,993 INFO L93 Difference]: Finished difference Result 1009 states and 1451 transitions. [2024-10-14 06:05:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:09,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 173 [2024-10-14 06:05:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:09,996 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:09,996 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:09,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:09,998 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 664 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1440 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 [2024-10-14 06:05:09,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1440 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4436363636363636) internal successors, (794), 550 states have internal predecessors, (794), 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) [2024-10-14 06:05:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 800 transitions. [2024-10-14 06:05:10,014 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 800 transitions. Word has length 173 [2024-10-14 06:05:10,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:10,015 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 800 transitions. [2024-10-14 06:05:10,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 06:05:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 800 transitions. [2024-10-14 06:05:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 06:05:10,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:10,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:10,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 06:05:10,017 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:10,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash 499802144, now seen corresponding path program 1 times [2024-10-14 06:05:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:10,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870415885] [2024-10-14 06:05:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:10,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:10,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:10,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:10,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:10,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:10,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870415885] [2024-10-14 06:05:10,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870415885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:10,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:10,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:10,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590065433] [2024-10-14 06:05:10,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:10,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:10,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:10,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:10,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:10,445 INFO L87 Difference]: Start difference. First operand 555 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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) [2024-10-14 06:05:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:10,590 INFO L93 Difference]: Finished difference Result 1009 states and 1449 transitions. [2024-10-14 06:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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 174 [2024-10-14 06:05:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:10,592 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:10,592 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:10,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:10,593 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1320 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:10,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 1440 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:10,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4418181818181819) internal successors, (793), 550 states have internal predecessors, (793), 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) [2024-10-14 06:05:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 799 transitions. [2024-10-14 06:05:10,605 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 799 transitions. Word has length 174 [2024-10-14 06:05:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:10,606 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 799 transitions. [2024-10-14 06:05:10,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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) [2024-10-14 06:05:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 799 transitions. [2024-10-14 06:05:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 06:05:10,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:10,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:10,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 06:05:10,607 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:10,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1201291701, now seen corresponding path program 1 times [2024-10-14 06:05:10,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266999004] [2024-10-14 06:05:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:11,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:11,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266999004] [2024-10-14 06:05:11,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266999004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:11,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:11,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:11,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005388723] [2024-10-14 06:05:11,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:11,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:11,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:11,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:11,053 INFO L87 Difference]: Start difference. First operand 555 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2024-10-14 06:05:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:11,198 INFO L93 Difference]: Finished difference Result 1009 states and 1447 transitions. [2024-10-14 06:05:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:11,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 175 [2024-10-14 06:05:11,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:11,202 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:11,202 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:11,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:11,203 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1314 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:11,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1440 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:11,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:11,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.44) internal successors, (792), 550 states have internal predecessors, (792), 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) [2024-10-14 06:05:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 798 transitions. [2024-10-14 06:05:11,218 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 798 transitions. Word has length 175 [2024-10-14 06:05:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:11,218 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 798 transitions. [2024-10-14 06:05:11,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2024-10-14 06:05:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 798 transitions. [2024-10-14 06:05:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 06:05:11,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:11,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:11,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 06:05:11,221 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:11,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:11,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1414695775, now seen corresponding path program 1 times [2024-10-14 06:05:11,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:11,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125685048] [2024-10-14 06:05:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:11,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:11,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:11,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125685048] [2024-10-14 06:05:11,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125685048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:11,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:11,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:11,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380520067] [2024-10-14 06:05:11,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:11,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:11,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:11,623 INFO L87 Difference]: Start difference. First operand 555 states and 798 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-10-14 06:05:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:11,762 INFO L93 Difference]: Finished difference Result 1009 states and 1445 transitions. [2024-10-14 06:05:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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 176 [2024-10-14 06:05:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:11,765 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:11,766 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:11,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:11,767 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1308 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:11,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1440 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:11,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4381818181818182) internal successors, (791), 550 states have internal predecessors, (791), 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) [2024-10-14 06:05:11,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 797 transitions. [2024-10-14 06:05:11,780 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 797 transitions. Word has length 176 [2024-10-14 06:05:11,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:11,781 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 797 transitions. [2024-10-14 06:05:11,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-10-14 06:05:11,781 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 797 transitions. [2024-10-14 06:05:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 06:05:11,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:11,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:11,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 06:05:11,782 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:11,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:11,783 INFO L85 PathProgramCache]: Analyzing trace with hash 136338102, now seen corresponding path program 1 times [2024-10-14 06:05:11,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:11,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133817705] [2024-10-14 06:05:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:12,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:12,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133817705] [2024-10-14 06:05:12,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133817705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:12,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:12,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512830335] [2024-10-14 06:05:12,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:12,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:12,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:12,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:12,197 INFO L87 Difference]: Start difference. First operand 555 states and 797 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2024-10-14 06:05:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:12,308 INFO L93 Difference]: Finished difference Result 1009 states and 1443 transitions. [2024-10-14 06:05:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:12,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 177 [2024-10-14 06:05:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:12,311 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:12,311 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:12,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:12,313 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 644 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:12,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1440 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:12,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:12,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4363636363636363) internal successors, (790), 550 states have internal predecessors, (790), 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) [2024-10-14 06:05:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 796 transitions. [2024-10-14 06:05:12,324 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 796 transitions. Word has length 177 [2024-10-14 06:05:12,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:12,324 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 796 transitions. [2024-10-14 06:05:12,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2024-10-14 06:05:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 796 transitions. [2024-10-14 06:05:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 06:05:12,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:12,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:12,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 06:05:12,326 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:12,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1096084962, now seen corresponding path program 1 times [2024-10-14 06:05:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218472758] [2024-10-14 06:05:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:12,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218472758] [2024-10-14 06:05:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218472758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744838257] [2024-10-14 06:05:12,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:12,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:12,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:12,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:12,784 INFO L87 Difference]: Start difference. First operand 555 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-14 06:05:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:12,927 INFO L93 Difference]: Finished difference Result 1009 states and 1441 transitions. [2024-10-14 06:05:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 178 [2024-10-14 06:05:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:12,930 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:12,930 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:12,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:12,931 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1296 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:12,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1440 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4345454545454546) internal successors, (789), 550 states have internal predecessors, (789), 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) [2024-10-14 06:05:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 795 transitions. [2024-10-14 06:05:12,944 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 795 transitions. Word has length 178 [2024-10-14 06:05:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:12,945 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 795 transitions. [2024-10-14 06:05:12,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-14 06:05:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 795 transitions. [2024-10-14 06:05:12,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 06:05:12,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:12,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:12,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 06:05:12,946 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:12,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:12,947 INFO L85 PathProgramCache]: Analyzing trace with hash 206983223, now seen corresponding path program 1 times [2024-10-14 06:05:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:12,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174719621] [2024-10-14 06:05:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:12,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:13,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:13,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:13,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174719621] [2024-10-14 06:05:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174719621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:13,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:13,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:13,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637540220] [2024-10-14 06:05:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:13,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:13,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:13,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:13,324 INFO L87 Difference]: Start difference. First operand 555 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-10-14 06:05:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:13,459 INFO L93 Difference]: Finished difference Result 1009 states and 1439 transitions. [2024-10-14 06:05:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 179 [2024-10-14 06:05:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:13,462 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:13,462 INFO L226 Difference]: Without dead ends: 555 [2024-10-14 06:05:13,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:13,463 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 657 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:13,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1446 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-14 06:05:13,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-10-14 06:05:13,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4327272727272726) internal successors, (788), 550 states have internal predecessors, (788), 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) [2024-10-14 06:05:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 794 transitions. [2024-10-14 06:05:13,473 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 794 transitions. Word has length 179 [2024-10-14 06:05:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:13,473 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 794 transitions. [2024-10-14 06:05:13,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-10-14 06:05:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 794 transitions. [2024-10-14 06:05:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 06:05:13,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:13,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:13,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 06:05:13,475 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:13,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash -145783715, now seen corresponding path program 1 times [2024-10-14 06:05:13,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:13,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928192356] [2024-10-14 06:05:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:13,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:14,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:14,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:14,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:14,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:14,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928192356] [2024-10-14 06:05:14,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928192356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:14,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:14,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894430062] [2024-10-14 06:05:14,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:14,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:14,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:14,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:14,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:14,176 INFO L87 Difference]: Start difference. First operand 555 states and 794 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 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) [2024-10-14 06:05:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:14,494 INFO L93 Difference]: Finished difference Result 1047 states and 1492 transitions. [2024-10-14 06:05:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:05:14,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 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 180 [2024-10-14 06:05:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:14,497 INFO L225 Difference]: With dead ends: 1047 [2024-10-14 06:05:14,497 INFO L226 Difference]: Without dead ends: 559 [2024-10-14 06:05:14,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:05:14,499 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 741 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:14,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 3812 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:05:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-14 06:05:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 557. [2024-10-14 06:05:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.4293478260869565) internal successors, (789), 552 states have internal predecessors, (789), 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) [2024-10-14 06:05:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 795 transitions. [2024-10-14 06:05:14,514 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 795 transitions. Word has length 180 [2024-10-14 06:05:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:14,514 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 795 transitions. [2024-10-14 06:05:14,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 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) [2024-10-14 06:05:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 795 transitions. [2024-10-14 06:05:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-14 06:05:14,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:14,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:14,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 06:05:14,516 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:14,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1433768905, now seen corresponding path program 1 times [2024-10-14 06:05:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202316114] [2024-10-14 06:05:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:15,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:15,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202316114] [2024-10-14 06:05:15,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202316114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:15,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:15,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639951037] [2024-10-14 06:05:15,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:15,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:15,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:15,293 INFO L87 Difference]: Start difference. First operand 557 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 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) [2024-10-14 06:05:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:15,335 INFO L93 Difference]: Finished difference Result 1092 states and 1529 transitions. [2024-10-14 06:05:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:15,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 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 181 [2024-10-14 06:05:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:15,338 INFO L225 Difference]: With dead ends: 1092 [2024-10-14 06:05:15,338 INFO L226 Difference]: Without dead ends: 636 [2024-10-14 06:05:15,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:15,339 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 19 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:15,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3110 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-10-14 06:05:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 634. [2024-10-14 06:05:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 629 states have (on average 1.3910969793322734) internal successors, (875), 629 states have internal predecessors, (875), 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) [2024-10-14 06:05:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 881 transitions. [2024-10-14 06:05:15,353 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 881 transitions. Word has length 181 [2024-10-14 06:05:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:15,354 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 881 transitions. [2024-10-14 06:05:15,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 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) [2024-10-14 06:05:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 881 transitions. [2024-10-14 06:05:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-14 06:05:15,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:15,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:15,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 06:05:15,356 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:15,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1888916575, now seen corresponding path program 1 times [2024-10-14 06:05:15,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:15,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524503921] [2024-10-14 06:05:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:15,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:15,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:15,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524503921] [2024-10-14 06:05:15,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524503921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:15,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:15,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107935595] [2024-10-14 06:05:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:15,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:15,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:15,842 INFO L87 Difference]: Start difference. First operand 634 states and 881 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 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) [2024-10-14 06:05:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:16,130 INFO L93 Difference]: Finished difference Result 1243 states and 1717 transitions. [2024-10-14 06:05:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:05:16,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 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 182 [2024-10-14 06:05:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:16,132 INFO L225 Difference]: With dead ends: 1243 [2024-10-14 06:05:16,132 INFO L226 Difference]: Without dead ends: 638 [2024-10-14 06:05:16,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:05:16,134 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 866 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:16,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 3635 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-10-14 06:05:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 636. [2024-10-14 06:05:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.388272583201268) internal successors, (876), 631 states have internal predecessors, (876), 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) [2024-10-14 06:05:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 882 transitions. [2024-10-14 06:05:16,145 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 882 transitions. Word has length 182 [2024-10-14 06:05:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:16,145 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 882 transitions. [2024-10-14 06:05:16,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 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) [2024-10-14 06:05:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 882 transitions. [2024-10-14 06:05:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-14 06:05:16,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:16,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:16,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 06:05:16,147 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:16,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1481901036, now seen corresponding path program 1 times [2024-10-14 06:05:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:16,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667296898] [2024-10-14 06:05:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:16,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 06:05:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:16,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:16,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667296898] [2024-10-14 06:05:16,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667296898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:16,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:16,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:16,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235838720] [2024-10-14 06:05:16,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:16,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:16,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:16,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:16,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:16,621 INFO L87 Difference]: Start difference. First operand 636 states and 882 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2024-10-14 06:05:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:17,133 INFO L93 Difference]: Finished difference Result 1175 states and 1619 transitions. [2024-10-14 06:05:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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 183 [2024-10-14 06:05:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:17,136 INFO L225 Difference]: With dead ends: 1175 [2024-10-14 06:05:17,136 INFO L226 Difference]: Without dead ends: 640 [2024-10-14 06:05:17,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:05:17,138 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 1489 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:17,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2323 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-10-14 06:05:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 638. [2024-10-14 06:05:17,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.3854660347551342) internal successors, (877), 633 states have internal predecessors, (877), 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) [2024-10-14 06:05:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 883 transitions. [2024-10-14 06:05:17,150 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 883 transitions. Word has length 183 [2024-10-14 06:05:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:17,151 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 883 transitions. [2024-10-14 06:05:17,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2024-10-14 06:05:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 883 transitions. [2024-10-14 06:05:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-14 06:05:17,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:17,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:17,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 06:05:17,152 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:17,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 729006879, now seen corresponding path program 1 times [2024-10-14 06:05:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:17,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900035465] [2024-10-14 06:05:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:17,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:17,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 06:05:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:17,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 06:05:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:17,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:17,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900035465] [2024-10-14 06:05:17,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900035465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:17,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:17,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:17,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912259] [2024-10-14 06:05:17,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:17,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:17,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:17,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:17,596 INFO L87 Difference]: Start difference. First operand 638 states and 883 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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) [2024-10-14 06:05:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:18,081 INFO L93 Difference]: Finished difference Result 1177 states and 1618 transitions. [2024-10-14 06:05:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 184 [2024-10-14 06:05:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:18,084 INFO L225 Difference]: With dead ends: 1177 [2024-10-14 06:05:18,084 INFO L226 Difference]: Without dead ends: 640 [2024-10-14 06:05:18,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:18,086 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 729 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:18,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 2323 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-10-14 06:05:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2024-10-14 06:05:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 634 states have (on average 1.384858044164038) internal successors, (878), 634 states have internal predecessors, (878), 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) [2024-10-14 06:05:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 884 transitions. [2024-10-14 06:05:18,099 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 884 transitions. Word has length 184 [2024-10-14 06:05:18,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:18,099 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 884 transitions. [2024-10-14 06:05:18,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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) [2024-10-14 06:05:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 884 transitions. [2024-10-14 06:05:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 06:05:18,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:18,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:18,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 06:05:18,101 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:18,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1770326123, now seen corresponding path program 1 times [2024-10-14 06:05:18,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:18,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585456712] [2024-10-14 06:05:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:18,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 06:05:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 06:05:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:18,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:18,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585456712] [2024-10-14 06:05:18,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585456712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:18,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:18,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767211543] [2024-10-14 06:05:18,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:18,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:18,726 INFO L87 Difference]: Start difference. First operand 639 states and 884 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 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) [2024-10-14 06:05:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:19,223 INFO L93 Difference]: Finished difference Result 1179 states and 1620 transitions. [2024-10-14 06:05:19,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:19,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 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 185 [2024-10-14 06:05:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:19,230 INFO L225 Difference]: With dead ends: 1179 [2024-10-14 06:05:19,230 INFO L226 Difference]: Without dead ends: 641 [2024-10-14 06:05:19,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:19,232 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 716 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:19,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 2323 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-10-14 06:05:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 640. [2024-10-14 06:05:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 635 states have (on average 1.384251968503937) internal successors, (879), 635 states have internal predecessors, (879), 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) [2024-10-14 06:05:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 885 transitions. [2024-10-14 06:05:19,248 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 885 transitions. Word has length 185 [2024-10-14 06:05:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:19,248 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 885 transitions. [2024-10-14 06:05:19,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 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) [2024-10-14 06:05:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 885 transitions. [2024-10-14 06:05:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-14 06:05:19,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:19,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:19,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 06:05:19,254 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:19,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:19,254 INFO L85 PathProgramCache]: Analyzing trace with hash -671778661, now seen corresponding path program 1 times [2024-10-14 06:05:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:19,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339245285] [2024-10-14 06:05:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:19,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 06:05:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:19,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:19,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339245285] [2024-10-14 06:05:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339245285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:19,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:05:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473916873] [2024-10-14 06:05:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 06:05:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 06:05:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:05:19,823 INFO L87 Difference]: Start difference. First operand 640 states and 885 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 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) [2024-10-14 06:05:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:20,696 INFO L93 Difference]: Finished difference Result 1718 states and 2356 transitions. [2024-10-14 06:05:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:05:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 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 186 [2024-10-14 06:05:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:20,700 INFO L225 Difference]: With dead ends: 1718 [2024-10-14 06:05:20,700 INFO L226 Difference]: Without dead ends: 1179 [2024-10-14 06:05:20,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:05:20,702 INFO L432 NwaCegarLoop]: 1209 mSDtfsCounter, 1310 mSDsluCounter, 5189 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 6398 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:20,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 6398 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 06:05:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-10-14 06:05:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1174. [2024-10-14 06:05:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 1166 states have (on average 1.3747855917667238) internal successors, (1603), 1166 states have internal predecessors, (1603), 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) [2024-10-14 06:05:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1615 transitions. [2024-10-14 06:05:20,726 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1615 transitions. Word has length 186 [2024-10-14 06:05:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:20,727 INFO L471 AbstractCegarLoop]: Abstraction has 1174 states and 1615 transitions. [2024-10-14 06:05:20,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 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) [2024-10-14 06:05:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1615 transitions. [2024-10-14 06:05:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 06:05:20,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:20,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:20,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 06:05:20,729 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:20,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1782802698, now seen corresponding path program 1 times [2024-10-14 06:05:20,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:20,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199449911] [2024-10-14 06:05:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:20,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 06:05:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:21,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:21,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199449911] [2024-10-14 06:05:21,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199449911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:21,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:21,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:21,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8090624] [2024-10-14 06:05:21,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:21,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:21,156 INFO L87 Difference]: Start difference. First operand 1174 states and 1615 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2024-10-14 06:05:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:21,681 INFO L93 Difference]: Finished difference Result 1181 states and 1620 transitions. [2024-10-14 06:05:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:21,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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 187 [2024-10-14 06:05:21,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:21,685 INFO L225 Difference]: With dead ends: 1181 [2024-10-14 06:05:21,685 INFO L226 Difference]: Without dead ends: 642 [2024-10-14 06:05:21,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:21,690 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 707 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:21,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 2323 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-14 06:05:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 641. [2024-10-14 06:05:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.3836477987421383) internal successors, (880), 636 states have internal predecessors, (880), 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) [2024-10-14 06:05:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 886 transitions. [2024-10-14 06:05:21,710 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 886 transitions. Word has length 187 [2024-10-14 06:05:21,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:21,711 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 886 transitions. [2024-10-14 06:05:21,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2024-10-14 06:05:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 886 transitions. [2024-10-14 06:05:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 06:05:21,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:21,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:21,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 06:05:21,712 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:21,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1415872086, now seen corresponding path program 1 times [2024-10-14 06:05:21,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:21,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342339599] [2024-10-14 06:05:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:22,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:22,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342339599] [2024-10-14 06:05:22,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342339599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:22,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:22,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:05:22,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639225464] [2024-10-14 06:05:22,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:22,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:05:22,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:22,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:05:22,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:22,603 INFO L87 Difference]: Start difference. First operand 641 states and 886 transitions. Second operand has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 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) [2024-10-14 06:05:24,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:24,046 INFO L93 Difference]: Finished difference Result 1643 states and 2248 transitions. [2024-10-14 06:05:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:05:24,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 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 187 [2024-10-14 06:05:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:24,050 INFO L225 Difference]: With dead ends: 1643 [2024-10-14 06:05:24,050 INFO L226 Difference]: Without dead ends: 1103 [2024-10-14 06:05:24,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-14 06:05:24,052 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 1306 mSDsluCounter, 4252 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:24,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 5177 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 06:05:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-10-14 06:05:24,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 674. [2024-10-14 06:05:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 668 states have (on average 1.3832335329341316) internal successors, (924), 668 states have internal predecessors, (924), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 06:05:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 932 transitions. [2024-10-14 06:05:24,065 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 932 transitions. Word has length 187 [2024-10-14 06:05:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:24,065 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 932 transitions. [2024-10-14 06:05:24,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 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) [2024-10-14 06:05:24,066 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 932 transitions. [2024-10-14 06:05:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 06:05:24,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:24,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:24,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 06:05:24,067 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:24,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:24,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1070943050, now seen corresponding path program 1 times [2024-10-14 06:05:24,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:24,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356599565] [2024-10-14 06:05:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:24,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:24,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356599565] [2024-10-14 06:05:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356599565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:24,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303019466] [2024-10-14 06:05:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:25,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:25,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:25,002 INFO L87 Difference]: Start difference. First operand 674 states and 932 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2024-10-14 06:05:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:25,116 INFO L93 Difference]: Finished difference Result 1521 states and 2053 transitions. [2024-10-14 06:05:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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 187 [2024-10-14 06:05:25,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:25,119 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:25,119 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:25,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:25,124 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 1118 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:25,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 3080 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:25,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:25,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3379530916844349) internal successors, (1255), 938 states have internal predecessors, (1255), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:25,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1271 transitions. [2024-10-14 06:05:25,145 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1271 transitions. Word has length 187 [2024-10-14 06:05:25,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:25,146 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1271 transitions. [2024-10-14 06:05:25,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2024-10-14 06:05:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1271 transitions. [2024-10-14 06:05:25,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-14 06:05:25,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:25,149 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:25,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 06:05:25,149 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:25,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1656599849, now seen corresponding path program 1 times [2024-10-14 06:05:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118774800] [2024-10-14 06:05:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-10-14 06:05:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-14 06:05:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-10-14 06:05:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,888 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:25,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:25,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118774800] [2024-10-14 06:05:25,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118774800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:25,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:25,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:25,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863977812] [2024-10-14 06:05:25,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:25,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:25,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:25,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:25,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:25,890 INFO L87 Difference]: Start difference. First operand 948 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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) [2024-10-14 06:05:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:26,016 INFO L93 Difference]: Finished difference Result 1521 states and 2052 transitions. [2024-10-14 06:05:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:26,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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 461 [2024-10-14 06:05:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:26,023 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:26,023 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:26,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:26,024 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1311 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:26,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1434 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:26,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3368869936034116) internal successors, (1254), 938 states have internal predecessors, (1254), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1270 transitions. [2024-10-14 06:05:26,046 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1270 transitions. Word has length 461 [2024-10-14 06:05:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:26,047 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1270 transitions. [2024-10-14 06:05:26,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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) [2024-10-14 06:05:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1270 transitions. [2024-10-14 06:05:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-10-14 06:05:26,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:26,051 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:26,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-14 06:05:26,051 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:26,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1390272967, now seen corresponding path program 1 times [2024-10-14 06:05:26,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:26,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515682919] [2024-10-14 06:05:26,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:26,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-10-14 06:05:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-10-14 06:05:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-14 06:05:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:26,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:26,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515682919] [2024-10-14 06:05:26,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515682919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:26,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:26,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:26,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99263992] [2024-10-14 06:05:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:26,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:26,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:26,849 INFO L87 Difference]: Start difference. First operand 948 states and 1270 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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) [2024-10-14 06:05:26,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:26,970 INFO L93 Difference]: Finished difference Result 1521 states and 2050 transitions. [2024-10-14 06:05:26,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:26,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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 462 [2024-10-14 06:05:26,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:26,973 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:26,974 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:26,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:26,975 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 712 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:26,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1440 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.335820895522388) internal successors, (1253), 938 states have internal predecessors, (1253), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:26,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1269 transitions. [2024-10-14 06:05:26,992 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1269 transitions. Word has length 462 [2024-10-14 06:05:26,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:26,992 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1269 transitions. [2024-10-14 06:05:26,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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) [2024-10-14 06:05:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1269 transitions. [2024-10-14 06:05:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-10-14 06:05:26,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:26,995 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:26,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-14 06:05:26,996 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:26,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash -374343788, now seen corresponding path program 1 times [2024-10-14 06:05:26,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:26,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254897811] [2024-10-14 06:05:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:26,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-10-14 06:05:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-10-14 06:05:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-10-14 06:05:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:27,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254897811] [2024-10-14 06:05:27,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254897811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:27,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:27,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:27,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877456524] [2024-10-14 06:05:27,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:27,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:27,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:27,648 INFO L87 Difference]: Start difference. First operand 948 states and 1269 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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) [2024-10-14 06:05:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:27,771 INFO L93 Difference]: Finished difference Result 1521 states and 2048 transitions. [2024-10-14 06:05:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:27,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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 463 [2024-10-14 06:05:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:27,774 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:27,774 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:27,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:27,775 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 704 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:27,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1440 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:27,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3347547974413647) internal successors, (1252), 938 states have internal predecessors, (1252), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1268 transitions. [2024-10-14 06:05:27,797 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1268 transitions. Word has length 463 [2024-10-14 06:05:27,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:27,798 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1268 transitions. [2024-10-14 06:05:27,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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) [2024-10-14 06:05:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1268 transitions. [2024-10-14 06:05:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-10-14 06:05:27,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:27,801 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:27,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-14 06:05:27,802 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:27,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:27,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1345611346, now seen corresponding path program 1 times [2024-10-14 06:05:27,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:27,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835783076] [2024-10-14 06:05:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:27,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-10-14 06:05:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-14 06:05:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-14 06:05:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:28,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835783076] [2024-10-14 06:05:28,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835783076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:28,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:28,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017788434] [2024-10-14 06:05:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:28,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:28,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:28,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:28,630 INFO L87 Difference]: Start difference. First operand 948 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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) [2024-10-14 06:05:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:28,740 INFO L93 Difference]: Finished difference Result 1521 states and 2046 transitions. [2024-10-14 06:05:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:28,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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 464 [2024-10-14 06:05:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:28,743 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:28,743 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:28,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:28,745 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 696 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:28,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1440 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:28,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:28,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3336886993603412) internal successors, (1251), 938 states have internal predecessors, (1251), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1267 transitions. [2024-10-14 06:05:28,762 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1267 transitions. Word has length 464 [2024-10-14 06:05:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:28,763 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1267 transitions. [2024-10-14 06:05:28,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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) [2024-10-14 06:05:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1267 transitions. [2024-10-14 06:05:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-10-14 06:05:28,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:28,766 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:28,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-14 06:05:28,766 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:28,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:28,767 INFO L85 PathProgramCache]: Analyzing trace with hash -15538561, now seen corresponding path program 1 times [2024-10-14 06:05:28,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:28,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869741660] [2024-10-14 06:05:28,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:28,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-10-14 06:05:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-10-14 06:05:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-10-14 06:05:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:29,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:29,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869741660] [2024-10-14 06:05:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869741660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:29,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023701149] [2024-10-14 06:05:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:29,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:29,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:29,443 INFO L87 Difference]: Start difference. First operand 948 states and 1267 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2024-10-14 06:05:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:29,554 INFO L93 Difference]: Finished difference Result 1521 states and 2044 transitions. [2024-10-14 06:05:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:29,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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 465 [2024-10-14 06:05:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:29,556 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:29,557 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:29,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:29,558 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 688 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:29,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1440 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:29,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3326226012793176) internal successors, (1250), 938 states have internal predecessors, (1250), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1266 transitions. [2024-10-14 06:05:29,575 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1266 transitions. Word has length 465 [2024-10-14 06:05:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:29,575 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1266 transitions. [2024-10-14 06:05:29,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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) [2024-10-14 06:05:29,576 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1266 transitions. [2024-10-14 06:05:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-10-14 06:05:29,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:29,578 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:29,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-14 06:05:29,578 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:29,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash 530120541, now seen corresponding path program 1 times [2024-10-14 06:05:29,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:29,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728942647] [2024-10-14 06:05:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-10-14 06:05:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-14 06:05:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-14 06:05:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:30,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:30,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728942647] [2024-10-14 06:05:30,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728942647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:30,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123294454] [2024-10-14 06:05:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:30,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:30,306 INFO L87 Difference]: Start difference. First operand 948 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2024-10-14 06:05:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:30,418 INFO L93 Difference]: Finished difference Result 1521 states and 2042 transitions. [2024-10-14 06:05:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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 466 [2024-10-14 06:05:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:30,421 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:30,421 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:30,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:30,422 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1231 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:30,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1434 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3315565031982943) internal successors, (1249), 938 states have internal predecessors, (1249), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1265 transitions. [2024-10-14 06:05:30,447 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1265 transitions. Word has length 466 [2024-10-14 06:05:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:30,451 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1265 transitions. [2024-10-14 06:05:30,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2024-10-14 06:05:30,451 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1265 transitions. [2024-10-14 06:05:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-10-14 06:05:30,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:30,453 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:30,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-14 06:05:30,453 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:30,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1517534742, now seen corresponding path program 1 times [2024-10-14 06:05:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:30,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243959055] [2024-10-14 06:05:30,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:30,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-10-14 06:05:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-10-14 06:05:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-10-14 06:05:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:31,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:31,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243959055] [2024-10-14 06:05:31,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243959055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:31,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:31,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:31,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860966287] [2024-10-14 06:05:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:31,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:31,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:31,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:31,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:31,158 INFO L87 Difference]: Start difference. First operand 948 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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) [2024-10-14 06:05:31,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:31,268 INFO L93 Difference]: Finished difference Result 1521 states and 2040 transitions. [2024-10-14 06:05:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:31,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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 467 [2024-10-14 06:05:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:31,271 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:31,271 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:31,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:31,272 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 672 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:31,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1440 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3304904051172708) internal successors, (1248), 938 states have internal predecessors, (1248), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1264 transitions. [2024-10-14 06:05:31,288 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1264 transitions. Word has length 467 [2024-10-14 06:05:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:31,288 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1264 transitions. [2024-10-14 06:05:31,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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) [2024-10-14 06:05:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1264 transitions. [2024-10-14 06:05:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-10-14 06:05:31,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:31,291 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:31,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-14 06:05:31,291 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:31,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash 178220264, now seen corresponding path program 1 times [2024-10-14 06:05:31,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:31,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350379381] [2024-10-14 06:05:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:31,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-10-14 06:05:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-14 06:05:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-14 06:05:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:32,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:32,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350379381] [2024-10-14 06:05:32,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350379381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:32,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:32,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:32,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974395135] [2024-10-14 06:05:32,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:32,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:32,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:32,126 INFO L87 Difference]: Start difference. First operand 948 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-10-14 06:05:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:32,268 INFO L93 Difference]: Finished difference Result 1521 states and 2038 transitions. [2024-10-14 06:05:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:32,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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 468 [2024-10-14 06:05:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:32,271 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:32,271 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:32,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:32,272 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1199 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:32,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1434 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3294243070362473) internal successors, (1247), 938 states have internal predecessors, (1247), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1263 transitions. [2024-10-14 06:05:32,297 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1263 transitions. Word has length 468 [2024-10-14 06:05:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:32,298 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1263 transitions. [2024-10-14 06:05:32,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-10-14 06:05:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1263 transitions. [2024-10-14 06:05:32,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-10-14 06:05:32,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:32,303 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:32,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-14 06:05:32,303 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:32,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash -593376811, now seen corresponding path program 1 times [2024-10-14 06:05:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7965371] [2024-10-14 06:05:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-14 06:05:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-10-14 06:05:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-10-14 06:05:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:33,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:33,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7965371] [2024-10-14 06:05:33,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7965371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:33,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680480090] [2024-10-14 06:05:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:33,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:33,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:33,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:33,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:33,249 INFO L87 Difference]: Start difference. First operand 948 states and 1263 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2024-10-14 06:05:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:33,326 INFO L93 Difference]: Finished difference Result 1521 states and 2036 transitions. [2024-10-14 06:05:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:33,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 469 [2024-10-14 06:05:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:33,329 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:33,329 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:33,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:33,330 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 1168 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:33,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1482 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.328358208955224) internal successors, (1246), 938 states have internal predecessors, (1246), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1262 transitions. [2024-10-14 06:05:33,346 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1262 transitions. Word has length 469 [2024-10-14 06:05:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:33,346 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1262 transitions. [2024-10-14 06:05:33,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2024-10-14 06:05:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1262 transitions. [2024-10-14 06:05:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-10-14 06:05:33,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:33,349 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:33,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-10-14 06:05:33,349 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:33,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:33,350 INFO L85 PathProgramCache]: Analyzing trace with hash 272330483, now seen corresponding path program 1 times [2024-10-14 06:05:33,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:33,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075594904] [2024-10-14 06:05:33,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:33,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-10-14 06:05:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-14 06:05:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-14 06:05:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:34,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:34,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075594904] [2024-10-14 06:05:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075594904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:34,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458403638] [2024-10-14 06:05:34,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:34,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:34,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:34,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:34,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:34,219 INFO L87 Difference]: Start difference. First operand 948 states and 1262 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2024-10-14 06:05:34,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:34,304 INFO L93 Difference]: Finished difference Result 1521 states and 2034 transitions. [2024-10-14 06:05:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:34,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 470 [2024-10-14 06:05:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:34,306 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:34,306 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:34,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:34,307 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 1152 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:34,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1482 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:34,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:34,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3272921108742004) internal successors, (1245), 938 states have internal predecessors, (1245), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:34,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1261 transitions. [2024-10-14 06:05:34,323 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1261 transitions. Word has length 470 [2024-10-14 06:05:34,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:34,324 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1261 transitions. [2024-10-14 06:05:34,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2024-10-14 06:05:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1261 transitions. [2024-10-14 06:05:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-10-14 06:05:34,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:34,327 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:34,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-10-14 06:05:34,327 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:34,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1622752832, now seen corresponding path program 1 times [2024-10-14 06:05:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826367799] [2024-10-14 06:05:34,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:34,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-10-14 06:05:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-10-14 06:05:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-14 06:05:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:35,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:35,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826367799] [2024-10-14 06:05:35,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826367799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:35,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:35,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:35,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788813744] [2024-10-14 06:05:35,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:35,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:35,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:35,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:35,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:35,035 INFO L87 Difference]: Start difference. First operand 948 states and 1261 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-10-14 06:05:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:35,110 INFO L93 Difference]: Finished difference Result 1521 states and 2032 transitions. [2024-10-14 06:05:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:35,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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 471 [2024-10-14 06:05:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:35,113 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:35,113 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:35,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:35,114 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 1136 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:35,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1482 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:35,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3262260127931769) internal successors, (1244), 938 states have internal predecessors, (1244), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1260 transitions. [2024-10-14 06:05:35,130 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1260 transitions. Word has length 471 [2024-10-14 06:05:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:35,131 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1260 transitions. [2024-10-14 06:05:35,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-10-14 06:05:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1260 transitions. [2024-10-14 06:05:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-10-14 06:05:35,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:35,134 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:35,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-10-14 06:05:35,134 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:35,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:35,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2067741314, now seen corresponding path program 1 times [2024-10-14 06:05:35,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:35,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597217056] [2024-10-14 06:05:35,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:35,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-10-14 06:05:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-10-14 06:05:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-10-14 06:05:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:35,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:35,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597217056] [2024-10-14 06:05:35,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597217056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:35,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:35,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906468253] [2024-10-14 06:05:35,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:35,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:35,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:35,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:35,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:35,827 INFO L87 Difference]: Start difference. First operand 948 states and 1260 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2024-10-14 06:05:35,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:35,901 INFO L93 Difference]: Finished difference Result 1521 states and 2030 transitions. [2024-10-14 06:05:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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 472 [2024-10-14 06:05:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:35,903 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:35,903 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:35,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:35,904 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 1120 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:35,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1482 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:35,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3251599147121536) internal successors, (1243), 938 states have internal predecessors, (1243), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1259 transitions. [2024-10-14 06:05:35,919 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1259 transitions. Word has length 472 [2024-10-14 06:05:35,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:35,919 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1259 transitions. [2024-10-14 06:05:35,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2024-10-14 06:05:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1259 transitions. [2024-10-14 06:05:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-10-14 06:05:35,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:35,922 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:35,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-10-14 06:05:35,922 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:35,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1796759339, now seen corresponding path program 1 times [2024-10-14 06:05:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:35,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280613354] [2024-10-14 06:05:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:35,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-10-14 06:05:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-14 06:05:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-10-14 06:05:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:36,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:36,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280613354] [2024-10-14 06:05:36,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280613354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:36,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:36,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:36,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412813342] [2024-10-14 06:05:36,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:36,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:36,773 INFO L87 Difference]: Start difference. First operand 948 states and 1259 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2024-10-14 06:05:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:36,828 INFO L93 Difference]: Finished difference Result 1521 states and 2028 transitions. [2024-10-14 06:05:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:36,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 473 [2024-10-14 06:05:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:36,831 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:36,831 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:36,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:36,833 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 602 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:36,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1512 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:36,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:36,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.32409381663113) internal successors, (1242), 938 states have internal predecessors, (1242), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1258 transitions. [2024-10-14 06:05:36,850 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1258 transitions. Word has length 473 [2024-10-14 06:05:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:36,850 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1258 transitions. [2024-10-14 06:05:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2024-10-14 06:05:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1258 transitions. [2024-10-14 06:05:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-10-14 06:05:36,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:36,853 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:36,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-10-14 06:05:36,853 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:36,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:36,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1310510967, now seen corresponding path program 1 times [2024-10-14 06:05:36,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:36,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544881033] [2024-10-14 06:05:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:36,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-10-14 06:05:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-10-14 06:05:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-14 06:05:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:37,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544881033] [2024-10-14 06:05:37,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544881033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:37,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364822137] [2024-10-14 06:05:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:37,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:37,632 INFO L87 Difference]: Start difference. First operand 948 states and 1258 transitions. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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) [2024-10-14 06:05:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:37,683 INFO L93 Difference]: Finished difference Result 1521 states and 2026 transitions. [2024-10-14 06:05:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 474 [2024-10-14 06:05:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:37,685 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:37,685 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:37,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:37,686 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 1081 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:37,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1506 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3230277185501067) internal successors, (1241), 938 states have internal predecessors, (1241), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1257 transitions. [2024-10-14 06:05:37,701 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1257 transitions. Word has length 474 [2024-10-14 06:05:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:37,701 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1257 transitions. [2024-10-14 06:05:37,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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) [2024-10-14 06:05:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1257 transitions. [2024-10-14 06:05:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-10-14 06:05:37,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:37,704 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:37,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-10-14 06:05:37,704 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:37,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:37,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1910828182, now seen corresponding path program 1 times [2024-10-14 06:05:37,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:37,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559551826] [2024-10-14 06:05:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:37,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-10-14 06:05:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-10-14 06:05:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-10-14 06:05:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:38,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:38,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559551826] [2024-10-14 06:05:38,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559551826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:38,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:38,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568280534] [2024-10-14 06:05:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:38,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:38,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:38,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:38,602 INFO L87 Difference]: Start difference. First operand 948 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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) [2024-10-14 06:05:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:38,871 INFO L93 Difference]: Finished difference Result 1521 states and 2024 transitions. [2024-10-14 06:05:38,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:38,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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 475 [2024-10-14 06:05:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:38,874 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:38,874 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:38,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:38,875 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 536 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:38,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1154 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:38,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:38,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3219616204690832) internal successors, (1240), 938 states have internal predecessors, (1240), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1256 transitions. [2024-10-14 06:05:38,889 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1256 transitions. Word has length 475 [2024-10-14 06:05:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:38,889 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1256 transitions. [2024-10-14 06:05:38,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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) [2024-10-14 06:05:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1256 transitions. [2024-10-14 06:05:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-10-14 06:05:38,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:38,892 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:38,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-10-14 06:05:38,892 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:38,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1991667732, now seen corresponding path program 1 times [2024-10-14 06:05:38,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:38,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700097898] [2024-10-14 06:05:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:38,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-10-14 06:05:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-14 06:05:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-10-14 06:05:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,214 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:40,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700097898] [2024-10-14 06:05:40,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700097898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:40,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:40,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9326823] [2024-10-14 06:05:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:40,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:40,219 INFO L87 Difference]: Start difference. First operand 948 states and 1256 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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) [2024-10-14 06:05:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:40,307 INFO L93 Difference]: Finished difference Result 1521 states and 2022 transitions. [2024-10-14 06:05:40,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 476 [2024-10-14 06:05:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:40,310 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:40,310 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:40,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:40,316 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 486 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:40,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1504 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:40,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3208955223880596) internal successors, (1239), 938 states have internal predecessors, (1239), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:40,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1255 transitions. [2024-10-14 06:05:40,348 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1255 transitions. Word has length 476 [2024-10-14 06:05:40,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:40,349 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1255 transitions. [2024-10-14 06:05:40,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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) [2024-10-14 06:05:40,349 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1255 transitions. [2024-10-14 06:05:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-10-14 06:05:40,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:40,356 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:40,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-10-14 06:05:40,356 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:40,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1132312604, now seen corresponding path program 1 times [2024-10-14 06:05:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:40,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974639183] [2024-10-14 06:05:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-10-14 06:05:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-10-14 06:05:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-10-14 06:05:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:42,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:42,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974639183] [2024-10-14 06:05:42,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974639183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:42,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:42,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:42,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569567624] [2024-10-14 06:05:42,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:42,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:42,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:42,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:42,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:42,322 INFO L87 Difference]: Start difference. First operand 948 states and 1255 transitions. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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) [2024-10-14 06:05:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:42,419 INFO L93 Difference]: Finished difference Result 1521 states and 2020 transitions. [2024-10-14 06:05:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:42,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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 477 [2024-10-14 06:05:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:42,422 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:42,422 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:42,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:42,423 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 646 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:42,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1480 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:42,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3198294243070363) internal successors, (1238), 938 states have internal predecessors, (1238), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1254 transitions. [2024-10-14 06:05:42,449 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1254 transitions. Word has length 477 [2024-10-14 06:05:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:42,449 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1254 transitions. [2024-10-14 06:05:42,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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) [2024-10-14 06:05:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1254 transitions. [2024-10-14 06:05:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-10-14 06:05:42,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:42,455 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:42,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-10-14 06:05:42,455 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:42,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1353781204, now seen corresponding path program 1 times [2024-10-14 06:05:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:42,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169655016] [2024-10-14 06:05:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-10-14 06:05:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-14 06:05:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-10-14 06:05:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:43,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:43,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169655016] [2024-10-14 06:05:43,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169655016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:43,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:43,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:43,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756719050] [2024-10-14 06:05:43,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:43,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:43,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:43,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:43,693 INFO L87 Difference]: Start difference. First operand 948 states and 1254 transitions. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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) [2024-10-14 06:05:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:43,773 INFO L93 Difference]: Finished difference Result 1521 states and 2018 transitions. [2024-10-14 06:05:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:43,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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 478 [2024-10-14 06:05:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:43,776 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:43,776 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:43,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:43,777 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 1148 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:43,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1474 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3187633262260128) internal successors, (1237), 938 states have internal predecessors, (1237), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1253 transitions. [2024-10-14 06:05:43,795 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1253 transitions. Word has length 478 [2024-10-14 06:05:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:43,795 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1253 transitions. [2024-10-14 06:05:43,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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) [2024-10-14 06:05:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1253 transitions. [2024-10-14 06:05:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-10-14 06:05:43,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:43,798 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:43,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-10-14 06:05:43,798 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:43,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1770034549, now seen corresponding path program 1 times [2024-10-14 06:05:43,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:43,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510679722] [2024-10-14 06:05:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:43,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-14 06:05:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-10-14 06:05:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-10-14 06:05:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:45,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:45,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510679722] [2024-10-14 06:05:45,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510679722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:45,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:45,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:45,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357280226] [2024-10-14 06:05:45,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:45,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:45,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:45,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:45,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:45,104 INFO L87 Difference]: Start difference. First operand 948 states and 1253 transitions. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2024-10-14 06:05:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:45,175 INFO L93 Difference]: Finished difference Result 1521 states and 2016 transitions. [2024-10-14 06:05:45,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:45,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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 479 [2024-10-14 06:05:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:45,178 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:45,178 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:45,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:45,179 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 495 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:45,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1474 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3176972281449892) internal successors, (1236), 938 states have internal predecessors, (1236), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1252 transitions. [2024-10-14 06:05:45,195 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1252 transitions. Word has length 479 [2024-10-14 06:05:45,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:45,196 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1252 transitions. [2024-10-14 06:05:45,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2024-10-14 06:05:45,196 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1252 transitions. [2024-10-14 06:05:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-10-14 06:05:45,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:45,199 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:45,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-10-14 06:05:45,199 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash -149068413, now seen corresponding path program 1 times [2024-10-14 06:05:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408973674] [2024-10-14 06:05:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-10-14 06:05:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-14 06:05:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-10-14 06:05:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,470 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:46,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:46,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408973674] [2024-10-14 06:05:46,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408973674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:46,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:46,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:46,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308238794] [2024-10-14 06:05:46,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:46,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:46,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:46,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:46,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:46,473 INFO L87 Difference]: Start difference. First operand 948 states and 1252 transitions. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2024-10-14 06:05:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:46,591 INFO L93 Difference]: Finished difference Result 1521 states and 2014 transitions. [2024-10-14 06:05:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:46,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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 480 [2024-10-14 06:05:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:46,594 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:46,594 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:46,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:46,595 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 628 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:46,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1418 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.316631130063966) internal successors, (1235), 938 states have internal predecessors, (1235), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1251 transitions. [2024-10-14 06:05:46,609 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1251 transitions. Word has length 480 [2024-10-14 06:05:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:46,610 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1251 transitions. [2024-10-14 06:05:46,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2024-10-14 06:05:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1251 transitions. [2024-10-14 06:05:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-10-14 06:05:46,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:46,612 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:46,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-10-14 06:05:46,613 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:46,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:46,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1390691309, now seen corresponding path program 1 times [2024-10-14 06:05:46,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:46,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482481368] [2024-10-14 06:05:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:46,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-10-14 06:05:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-10-14 06:05:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-10-14 06:05:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:47,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:47,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482481368] [2024-10-14 06:05:47,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482481368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:47,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:47,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:47,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984820453] [2024-10-14 06:05:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:47,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:47,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:47,923 INFO L87 Difference]: Start difference. First operand 948 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2024-10-14 06:05:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:48,050 INFO L93 Difference]: Finished difference Result 1521 states and 2012 transitions. [2024-10-14 06:05:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:48,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 481 [2024-10-14 06:05:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:48,052 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:48,052 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:48,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:48,054 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 627 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:48,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1418 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:48,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3155650319829424) internal successors, (1234), 938 states have internal predecessors, (1234), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1250 transitions. [2024-10-14 06:05:48,068 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1250 transitions. Word has length 481 [2024-10-14 06:05:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:48,068 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1250 transitions. [2024-10-14 06:05:48,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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) [2024-10-14 06:05:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1250 transitions. [2024-10-14 06:05:48,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-10-14 06:05:48,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:48,071 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:48,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-10-14 06:05:48,071 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:48,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash 680245586, now seen corresponding path program 1 times [2024-10-14 06:05:48,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:48,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477920122] [2024-10-14 06:05:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:48,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-14 06:05:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-14 06:05:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-10-14 06:05:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:49,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477920122] [2024-10-14 06:05:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477920122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407503713] [2024-10-14 06:05:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:49,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:49,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:49,569 INFO L87 Difference]: Start difference. First operand 948 states and 1250 transitions. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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) [2024-10-14 06:05:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:49,687 INFO L93 Difference]: Finished difference Result 1521 states and 2010 transitions. [2024-10-14 06:05:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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 482 [2024-10-14 06:05:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:49,691 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:49,691 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:49,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:49,693 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 548 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1412 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 [2024-10-14 06:05:49,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1412 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.314498933901919) internal successors, (1233), 938 states have internal predecessors, (1233), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1249 transitions. [2024-10-14 06:05:49,714 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1249 transitions. Word has length 482 [2024-10-14 06:05:49,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:49,714 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1249 transitions. [2024-10-14 06:05:49,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 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) [2024-10-14 06:05:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1249 transitions. [2024-10-14 06:05:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-10-14 06:05:49,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:49,717 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:49,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-10-14 06:05:49,718 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:49,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2067415804, now seen corresponding path program 1 times [2024-10-14 06:05:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:49,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565864928] [2024-10-14 06:05:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:49,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-10-14 06:05:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-10-14 06:05:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-10-14 06:05:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:51,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565864928] [2024-10-14 06:05:51,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565864928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:51,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:51,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:51,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070086271] [2024-10-14 06:05:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:51,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:51,092 INFO L87 Difference]: Start difference. First operand 948 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2024-10-14 06:05:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:51,208 INFO L93 Difference]: Finished difference Result 1521 states and 2008 transitions. [2024-10-14 06:05:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 483 [2024-10-14 06:05:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:51,210 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:51,210 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:51,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:51,211 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 1163 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:51,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 1412 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:51,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:51,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:51,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3134328358208955) internal successors, (1232), 938 states have internal predecessors, (1232), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1248 transitions. [2024-10-14 06:05:51,226 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1248 transitions. Word has length 483 [2024-10-14 06:05:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:51,227 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1248 transitions. [2024-10-14 06:05:51,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2024-10-14 06:05:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1248 transitions. [2024-10-14 06:05:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-10-14 06:05:51,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:51,230 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:51,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-10-14 06:05:51,230 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:51,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1379039137, now seen corresponding path program 1 times [2024-10-14 06:05:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:51,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20392584] [2024-10-14 06:05:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:51,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-14 06:05:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-14 06:05:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-10-14 06:05:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:52,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:52,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20392584] [2024-10-14 06:05:52,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20392584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:52,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:52,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:52,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761572989] [2024-10-14 06:05:52,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:52,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:52,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:52,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:52,439 INFO L87 Difference]: Start difference. First operand 948 states and 1248 transitions. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2024-10-14 06:05:52,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:52,552 INFO L93 Difference]: Finished difference Result 1521 states and 2006 transitions. [2024-10-14 06:05:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:52,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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 484 [2024-10-14 06:05:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:52,554 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:52,554 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:52,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:52,555 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 1153 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:52,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 1412 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.312366737739872) internal successors, (1231), 938 states have internal predecessors, (1231), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1247 transitions. [2024-10-14 06:05:52,570 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1247 transitions. Word has length 484 [2024-10-14 06:05:52,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:52,570 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1247 transitions. [2024-10-14 06:05:52,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2024-10-14 06:05:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1247 transitions. [2024-10-14 06:05:52,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-14 06:05:52,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:52,573 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:52,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-10-14 06:05:52,573 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:52,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:52,573 INFO L85 PathProgramCache]: Analyzing trace with hash -73716875, now seen corresponding path program 1 times [2024-10-14 06:05:52,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:52,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221853461] [2024-10-14 06:05:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:52,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-10-14 06:05:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-10-14 06:05:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-10-14 06:05:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:53,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221853461] [2024-10-14 06:05:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221853461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:53,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113860107] [2024-10-14 06:05:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:53,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:53,869 INFO L87 Difference]: Start difference. First operand 948 states and 1247 transitions. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 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) [2024-10-14 06:05:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:53,980 INFO L93 Difference]: Finished difference Result 1521 states and 2004 transitions. [2024-10-14 06:05:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 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 485 [2024-10-14 06:05:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:53,982 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:53,982 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:53,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:53,983 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 1143 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:53,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 1412 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3113006396588487) internal successors, (1230), 938 states have internal predecessors, (1230), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1246 transitions. [2024-10-14 06:05:53,998 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1246 transitions. Word has length 485 [2024-10-14 06:05:53,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:53,999 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1246 transitions. [2024-10-14 06:05:53,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 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) [2024-10-14 06:05:53,999 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1246 transitions. [2024-10-14 06:05:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-10-14 06:05:54,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:54,002 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:54,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-10-14 06:05:54,002 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:54,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:54,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1165102992, now seen corresponding path program 1 times [2024-10-14 06:05:54,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:54,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355624698] [2024-10-14 06:05:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-14 06:05:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-10-14 06:05:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-10-14 06:05:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:55,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:55,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355624698] [2024-10-14 06:05:55,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355624698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:55,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:55,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:55,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482321635] [2024-10-14 06:05:55,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:55,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:55,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:55,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:55,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:55,181 INFO L87 Difference]: Start difference. First operand 948 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2024-10-14 06:05:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:55,289 INFO L93 Difference]: Finished difference Result 1521 states and 2002 transitions. [2024-10-14 06:05:55,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:55,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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 486 [2024-10-14 06:05:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:55,291 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 06:05:55,291 INFO L226 Difference]: Without dead ends: 948 [2024-10-14 06:05:55,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:55,292 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 512 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:55,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1412 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-10-14 06:05:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-10-14 06:05:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 938 states have (on average 1.3102345415778252) internal successors, (1229), 938 states have internal predecessors, (1229), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1245 transitions. [2024-10-14 06:05:55,308 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1245 transitions. Word has length 486 [2024-10-14 06:05:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:55,309 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1245 transitions. [2024-10-14 06:05:55,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2024-10-14 06:05:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1245 transitions. [2024-10-14 06:05:55,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-10-14 06:05:55,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:55,311 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:55,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-10-14 06:05:55,312 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:55,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash -382224538, now seen corresponding path program 1 times [2024-10-14 06:05:55,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069228360] [2024-10-14 06:05:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:55,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-10-14 06:05:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-10-14 06:05:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-10-14 06:05:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:56,834 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:56,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069228360] [2024-10-14 06:05:56,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069228360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:56,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:56,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:56,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922409527] [2024-10-14 06:05:56,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:56,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:56,837 INFO L87 Difference]: Start difference. First operand 948 states and 1245 transitions. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2024-10-14 06:05:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:57,253 INFO L93 Difference]: Finished difference Result 2200 states and 2902 transitions. [2024-10-14 06:05:57,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:57,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 487 [2024-10-14 06:05:57,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:57,257 INFO L225 Difference]: With dead ends: 2200 [2024-10-14 06:05:57,257 INFO L226 Difference]: Without dead ends: 1627 [2024-10-14 06:05:57,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:57,258 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 684 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:57,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 2787 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:57,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-10-14 06:05:57,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1477. [2024-10-14 06:05:57,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1463 states have (on average 1.3075871496924127) internal successors, (1913), 1463 states have internal predecessors, (1913), 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) [2024-10-14 06:05:57,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 1937 transitions. [2024-10-14 06:05:57,295 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 1937 transitions. Word has length 487 [2024-10-14 06:05:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:57,295 INFO L471 AbstractCegarLoop]: Abstraction has 1477 states and 1937 transitions. [2024-10-14 06:05:57,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2024-10-14 06:05:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 1937 transitions. [2024-10-14 06:05:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-10-14 06:05:57,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:57,300 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, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:57,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-10-14 06:05:57,301 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:57,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:57,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1710386676, now seen corresponding path program 1 times [2024-10-14 06:05:57,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:57,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197129506] [2024-10-14 06:05:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:57,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-14 06:05:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-14 06:05:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-10-14 06:05:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:59,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:59,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197129506] [2024-10-14 06:05:59,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197129506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:59,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:59,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:59,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595513637] [2024-10-14 06:05:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:59,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:59,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:59,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:59,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:59,258 INFO L87 Difference]: Start difference. First operand 1477 states and 1937 transitions. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2024-10-14 06:05:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:59,765 INFO L93 Difference]: Finished difference Result 2073 states and 2726 transitions. [2024-10-14 06:05:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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 488 [2024-10-14 06:05:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:59,768 INFO L225 Difference]: With dead ends: 2073 [2024-10-14 06:05:59,768 INFO L226 Difference]: Without dead ends: 1500 [2024-10-14 06:05:59,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:59,770 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 1319 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:59,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 2227 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-10-14 06:05:59,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1478. [2024-10-14 06:05:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1464 states have (on average 1.3073770491803278) internal successors, (1914), 1464 states have internal predecessors, (1914), 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) [2024-10-14 06:05:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1938 transitions. [2024-10-14 06:05:59,795 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1938 transitions. Word has length 488 [2024-10-14 06:05:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:59,795 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 1938 transitions. [2024-10-14 06:05:59,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2024-10-14 06:05:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1938 transitions. [2024-10-14 06:05:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-10-14 06:05:59,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:59,799 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, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:59,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-10-14 06:05:59,799 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:59,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1734569237, now seen corresponding path program 1 times [2024-10-14 06:05:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:59,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360573322] [2024-10-14 06:05:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat