./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem05_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem05_label49.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec47703dd9ca56b015ed04be692f36d14f45a0813c854d61b2b3eed727aa39e9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 11:00:56,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 11:00:56,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 11:00:56,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 11:00:56,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 11:00:56,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 11:00:56,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 11:00:56,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 11:00:56,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 11:00:56,763 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 11:00:56,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 11:00:56,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 11:00:56,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 11:00:56,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 11:00:56,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 11:00:56,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 11:00:56,766 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 11:00:56,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 11:00:56,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 11:00:56,767 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec47703dd9ca56b015ed04be692f36d14f45a0813c854d61b2b3eed727aa39e9 [2025-02-05 11:00:56,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 11:00:56,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 11:00:56,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 11:00:56,979 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 11:00:56,980 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 11:00:56,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label49.c [2025-02-05 11:00:58,197 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c75e26a95/c181baf2dc9e4b3aaf791dad32aec629/FLAGd4040847c [2025-02-05 11:00:58,694 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 11:00:58,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label49.c [2025-02-05 11:00:58,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c75e26a95/c181baf2dc9e4b3aaf791dad32aec629/FLAGd4040847c [2025-02-05 11:00:58,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c75e26a95/c181baf2dc9e4b3aaf791dad32aec629 [2025-02-05 11:00:58,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 11:00:58,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 11:00:58,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 11:00:58,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 11:00:58,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 11:00:58,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 11:00:58" (1/1) ... [2025-02-05 11:00:58,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60592373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:00:58, skipping insertion in model container [2025-02-05 11:00:58,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 11:00:58" (1/1) ... [2025-02-05 11:00:58,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 11:01:00,032 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label49.c[380250,380263] [2025-02-05 11:01:00,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 11:01:00,051 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 11:01:00,544 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label49.c[380250,380263] [2025-02-05 11:01:00,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 11:01:00,583 INFO L204 MainTranslator]: Completed translation [2025-02-05 11:01:00,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00 WrapperNode [2025-02-05 11:01:00,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 11:01:00,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 11:01:00,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 11:01:00,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 11:01:00,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:00,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,002 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12351 [2025-02-05 11:01:01,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 11:01:01,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 11:01:01,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 11:01:01,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 11:01:01,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,312 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]. [2025-02-05 11:01:01,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 11:01:01,549 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 11:01:01,549 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 11:01:01,549 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 11:01:01,550 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (1/1) ... [2025-02-05 11:01:01,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 11:01:01,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:01:01,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 11:01:01,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 11:01:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 11:01:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 11:01:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 11:01:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 11:01:01,677 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 11:01:01,679 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 11:01:08,631 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4472: havoc calculate_output3_#t~ret15#1; [2025-02-05 11:01:08,632 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: havoc calculate_output5_#t~ret17#1; [2025-02-05 11:01:08,632 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3024: havoc calculate_output2_#t~ret14#1; [2025-02-05 11:01:08,632 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10431: havoc calculate_output7_#t~ret19#1; [2025-02-05 11:01:08,633 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8913: havoc calculate_output6_#t~ret18#1; [2025-02-05 11:01:08,633 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc calculate_output4_#t~ret16#1; [2025-02-05 11:01:08,633 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1534: havoc calculate_output_#t~ret13#1; [2025-02-05 11:01:09,153 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2025-02-05 11:01:09,153 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 11:01:09,259 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 11:01:09,259 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 11:01:09,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 11:01:09 BoogieIcfgContainer [2025-02-05 11:01:09,263 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 11:01:09,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 11:01:09,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 11:01:09,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 11:01:09,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 11:00:58" (1/3) ... [2025-02-05 11:01:09,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f32a1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 11:01:09, skipping insertion in model container [2025-02-05 11:01:09,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:01:00" (2/3) ... [2025-02-05 11:01:09,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f32a1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 11:01:09, skipping insertion in model container [2025-02-05 11:01:09,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 11:01:09" (3/3) ... [2025-02-05 11:01:09,286 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49.c [2025-02-05 11:01:09,316 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 11:01:09,349 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49.c that has 1 procedures, 2185 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 11:01:09,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 11:01:09,543 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;@7d9cee0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 11:01:09,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 11:01:09,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 2185 states, 2183 states have (on average 1.87036188731104) internal successors, (4083), 2184 states have internal predecessors, (4083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1678 [2025-02-05 11:01:09,657 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:09,658 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:09,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:09,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1843916909, now seen corresponding path program 1 times [2025-02-05 11:01:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:09,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661881898] [2025-02-05 11:01:09,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:09,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:10,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1677 statements into 1 equivalence classes. [2025-02-05 11:01:10,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1677 of 1677 statements. [2025-02-05 11:01:10,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:10,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:13,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:13,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661881898] [2025-02-05 11:01:13,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661881898] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:13,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:13,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 11:01:13,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371446482] [2025-02-05 11:01:13,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:13,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:13,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:13,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:13,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:13,865 INFO L87 Difference]: Start difference. First operand has 2185 states, 2183 states have (on average 1.87036188731104) internal successors, (4083), 2184 states have internal predecessors, (4083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:20,289 INFO L93 Difference]: Finished difference Result 6175 states and 11680 transitions. [2025-02-05 11:01:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:01:20,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1677 [2025-02-05 11:01:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:20,324 INFO L225 Difference]: With dead ends: 6175 [2025-02-05 11:01:20,324 INFO L226 Difference]: Without dead ends: 3926 [2025-02-05 11:01:20,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:20,333 INFO L435 NwaCegarLoop]: 1253 mSDtfsCounter, 480 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5698 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 7412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 5698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:20,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1428 Invalid, 7412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1714 Valid, 5698 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2025-02-05 11:01:20,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2025-02-05 11:01:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3906. [2025-02-05 11:01:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 3905 states have (on average 1.7426376440460947) internal successors, (6805), 3905 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 6805 transitions. [2025-02-05 11:01:20,474 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 6805 transitions. Word has length 1677 [2025-02-05 11:01:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:20,479 INFO L471 AbstractCegarLoop]: Abstraction has 3906 states and 6805 transitions. [2025-02-05 11:01:20,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 6805 transitions. [2025-02-05 11:01:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1683 [2025-02-05 11:01:20,527 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:20,528 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:20,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 11:01:20,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:20,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1710646652, now seen corresponding path program 1 times [2025-02-05 11:01:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:20,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752670097] [2025-02-05 11:01:20,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:20,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1682 statements into 1 equivalence classes. [2025-02-05 11:01:20,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1682 of 1682 statements. [2025-02-05 11:01:20,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:20,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:22,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:22,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752670097] [2025-02-05 11:01:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752670097] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:22,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 11:01:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267281327] [2025-02-05 11:01:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:22,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:22,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:22,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:22,323 INFO L87 Difference]: Start difference. First operand 3906 states and 6805 transitions. Second operand has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:28,089 INFO L93 Difference]: Finished difference Result 11242 states and 19737 transitions. [2025-02-05 11:01:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:01:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1682 [2025-02-05 11:01:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:28,111 INFO L225 Difference]: With dead ends: 11242 [2025-02-05 11:01:28,111 INFO L226 Difference]: Without dead ends: 7338 [2025-02-05 11:01:28,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:28,115 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 2707 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 2372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2372 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:28,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2707 Valid, 1700 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2372 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2025-02-05 11:01:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2025-02-05 11:01:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 7336. [2025-02-05 11:01:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7336 states, 7335 states have (on average 1.562099522835719) internal successors, (11458), 7335 states have internal predecessors, (11458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7336 states to 7336 states and 11458 transitions. [2025-02-05 11:01:28,227 INFO L78 Accepts]: Start accepts. Automaton has 7336 states and 11458 transitions. Word has length 1682 [2025-02-05 11:01:28,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:28,227 INFO L471 AbstractCegarLoop]: Abstraction has 7336 states and 11458 transitions. [2025-02-05 11:01:28,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:28,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7336 states and 11458 transitions. [2025-02-05 11:01:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1685 [2025-02-05 11:01:28,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:28,250 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:28,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 11:01:28,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash 348209001, now seen corresponding path program 1 times [2025-02-05 11:01:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:28,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526266478] [2025-02-05 11:01:28,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:28,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1684 statements into 1 equivalence classes. [2025-02-05 11:01:28,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1684 of 1684 statements. [2025-02-05 11:01:28,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:28,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:31,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:31,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526266478] [2025-02-05 11:01:31,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526266478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:31,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:31,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:01:31,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742718288] [2025-02-05 11:01:31,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:31,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 11:01:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:31,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 11:01:31,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 11:01:31,243 INFO L87 Difference]: Start difference. First operand 7336 states and 11458 transitions. Second operand has 4 states, 4 states have (on average 421.0) internal successors, (1684), 3 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:39,641 INFO L93 Difference]: Finished difference Result 23107 states and 36016 transitions. [2025-02-05 11:01:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 11:01:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 421.0) internal successors, (1684), 3 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1684 [2025-02-05 11:01:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:39,679 INFO L225 Difference]: With dead ends: 23107 [2025-02-05 11:01:39,680 INFO L226 Difference]: Without dead ends: 14121 [2025-02-05 11:01:39,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 11:01:39,689 INFO L435 NwaCegarLoop]: 1037 mSDtfsCounter, 3041 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 9244 mSolverCounterSat, 3792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 13036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3792 IncrementalHoareTripleChecker+Valid, 9244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:39,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 1305 Invalid, 13036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3792 Valid, 9244 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2025-02-05 11:01:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14121 states. [2025-02-05 11:01:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14121 to 14121. [2025-02-05 11:01:39,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14121 states, 14120 states have (on average 1.2858356940509914) internal successors, (18156), 14120 states have internal predecessors, (18156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14121 states to 14121 states and 18156 transitions. [2025-02-05 11:01:39,911 INFO L78 Accepts]: Start accepts. Automaton has 14121 states and 18156 transitions. Word has length 1684 [2025-02-05 11:01:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:39,911 INFO L471 AbstractCegarLoop]: Abstraction has 14121 states and 18156 transitions. [2025-02-05 11:01:39,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 421.0) internal successors, (1684), 3 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 14121 states and 18156 transitions. [2025-02-05 11:01:39,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1696 [2025-02-05 11:01:39,943 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:39,943 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:39,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 11:01:39,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:39,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1182984339, now seen corresponding path program 1 times [2025-02-05 11:01:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306655920] [2025-02-05 11:01:39,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:39,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:40,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1695 statements into 1 equivalence classes. [2025-02-05 11:01:40,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1695 of 1695 statements. [2025-02-05 11:01:40,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:40,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:40,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:40,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306655920] [2025-02-05 11:01:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306655920] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:40,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:01:40,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527330347] [2025-02-05 11:01:40,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:40,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:40,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:40,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:41,001 INFO L87 Difference]: Start difference. First operand 14121 states and 18156 transitions. Second operand has 3 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:45,687 INFO L93 Difference]: Finished difference Result 41862 states and 53804 transitions. [2025-02-05 11:01:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:01:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1695 [2025-02-05 11:01:45,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:45,799 INFO L225 Difference]: With dead ends: 41862 [2025-02-05 11:01:45,800 INFO L226 Difference]: Without dead ends: 27743 [2025-02-05 11:01:45,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:45,833 INFO L435 NwaCegarLoop]: 3142 mSDtfsCounter, 281 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 4547 mSolverCounterSat, 1133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3377 SdHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1133 IncrementalHoareTripleChecker+Valid, 4547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:45,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 3377 Invalid, 5680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1133 Valid, 4547 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-05 11:01:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27743 states. [2025-02-05 11:01:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27743 to 27736. [2025-02-05 11:01:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27736 states, 27735 states have (on average 1.1908058409951325) internal successors, (33027), 27735 states have internal predecessors, (33027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27736 states to 27736 states and 33027 transitions. [2025-02-05 11:01:46,132 INFO L78 Accepts]: Start accepts. Automaton has 27736 states and 33027 transitions. Word has length 1695 [2025-02-05 11:01:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:46,133 INFO L471 AbstractCegarLoop]: Abstraction has 27736 states and 33027 transitions. [2025-02-05 11:01:46,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 27736 states and 33027 transitions. [2025-02-05 11:01:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1701 [2025-02-05 11:01:46,200 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:46,201 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:46,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 11:01:46,201 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:46,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1446452232, now seen corresponding path program 1 times [2025-02-05 11:01:46,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:46,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480927286] [2025-02-05 11:01:46,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:46,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:46,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1700 statements into 1 equivalence classes. [2025-02-05 11:01:46,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1700 of 1700 statements. [2025-02-05 11:01:46,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:46,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:47,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480927286] [2025-02-05 11:01:47,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480927286] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:47,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:47,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 11:01:47,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107641848] [2025-02-05 11:01:47,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:47,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:47,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:47,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:47,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:47,160 INFO L87 Difference]: Start difference. First operand 27736 states and 33027 transitions. Second operand has 3 states, 3 states have (on average 566.6666666666666) internal successors, (1700), 2 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:51,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:51,321 INFO L93 Difference]: Finished difference Result 82637 states and 98344 transitions. [2025-02-05 11:01:51,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:01:51,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 566.6666666666666) internal successors, (1700), 2 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1700 [2025-02-05 11:01:51,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:51,391 INFO L225 Difference]: With dead ends: 82637 [2025-02-05 11:01:51,392 INFO L226 Difference]: Without dead ends: 54903 [2025-02-05 11:01:51,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:51,409 INFO L435 NwaCegarLoop]: 1271 mSDtfsCounter, 2196 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4667 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 5577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:51,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 1441 Invalid, 5577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4667 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-05 11:01:51,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54903 states. [2025-02-05 11:01:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54903 to 53203. [2025-02-05 11:01:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53203 states, 53202 states have (on average 1.1386226081726252) internal successors, (60577), 53202 states have internal predecessors, (60577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53203 states to 53203 states and 60577 transitions. [2025-02-05 11:01:51,822 INFO L78 Accepts]: Start accepts. Automaton has 53203 states and 60577 transitions. Word has length 1700 [2025-02-05 11:01:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:51,823 INFO L471 AbstractCegarLoop]: Abstraction has 53203 states and 60577 transitions. [2025-02-05 11:01:51,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 566.6666666666666) internal successors, (1700), 2 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 53203 states and 60577 transitions. [2025-02-05 11:01:51,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1806 [2025-02-05 11:01:51,873 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:51,874 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:51,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 11:01:51,875 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:51,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash 358687793, now seen corresponding path program 1 times [2025-02-05 11:01:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585642962] [2025-02-05 11:01:51,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:51,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:51,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1805 statements into 1 equivalence classes. [2025-02-05 11:01:52,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1805 of 1805 statements. [2025-02-05 11:01:52,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:52,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:01:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585642962] [2025-02-05 11:01:53,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585642962] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:53,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:53,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:01:53,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945948746] [2025-02-05 11:01:53,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:53,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:53,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:53,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:53,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:53,804 INFO L87 Difference]: Start difference. First operand 53203 states and 60577 transitions. Second operand has 3 states, 3 states have (on average 601.6666666666666) internal successors, (1805), 3 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:01:58,118 INFO L93 Difference]: Finished difference Result 126798 states and 144709 transitions. [2025-02-05 11:01:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:01:58,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 601.6666666666666) internal successors, (1805), 3 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1805 [2025-02-05 11:01:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:01:58,212 INFO L225 Difference]: With dead ends: 126798 [2025-02-05 11:01:58,212 INFO L226 Difference]: Without dead ends: 70201 [2025-02-05 11:01:58,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:58,254 INFO L435 NwaCegarLoop]: 3286 mSDtfsCounter, 1614 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-05 11:01:58,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3511 Invalid, 5764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-05 11:01:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70201 states. [2025-02-05 11:01:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70201 to 70187. [2025-02-05 11:01:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70187 states, 70186 states have (on average 1.107870515487419) internal successors, (77757), 70186 states have internal predecessors, (77757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70187 states to 70187 states and 77757 transitions. [2025-02-05 11:01:58,949 INFO L78 Accepts]: Start accepts. Automaton has 70187 states and 77757 transitions. Word has length 1805 [2025-02-05 11:01:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:01:58,950 INFO L471 AbstractCegarLoop]: Abstraction has 70187 states and 77757 transitions. [2025-02-05 11:01:58,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 601.6666666666666) internal successors, (1805), 3 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:01:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 70187 states and 77757 transitions. [2025-02-05 11:01:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2025-02-05 11:01:59,009 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:01:59,009 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:01:59,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 11:01:59,010 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:01:59,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:01:59,011 INFO L85 PathProgramCache]: Analyzing trace with hash 88713744, now seen corresponding path program 1 times [2025-02-05 11:01:59,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:01:59,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738044062] [2025-02-05 11:01:59,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:01:59,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:01:59,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1806 statements into 1 equivalence classes. [2025-02-05 11:01:59,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1806 of 1806 statements. [2025-02-05 11:01:59,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:01:59,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:01:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-02-05 11:01:59,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:01:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738044062] [2025-02-05 11:01:59,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738044062] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:01:59,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:01:59,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 11:01:59,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379627944] [2025-02-05 11:01:59,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:01:59,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:01:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:01:59,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:01:59,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:01:59,783 INFO L87 Difference]: Start difference. First operand 70187 states and 77757 transitions. Second operand has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 2 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:03,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:02:03,631 INFO L93 Difference]: Finished difference Result 167564 states and 185673 transitions. [2025-02-05 11:02:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:02:03,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 2 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1806 [2025-02-05 11:02:03,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:02:03,734 INFO L225 Difference]: With dead ends: 167564 [2025-02-05 11:02:03,735 INFO L226 Difference]: Without dead ends: 97379 [2025-02-05 11:02:03,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:03,777 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 2100 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4505 mSolverCounterSat, 1131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 5636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 4505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-02-05 11:02:03,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 1101 Invalid, 5636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1131 Valid, 4505 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-02-05 11:02:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97379 states. [2025-02-05 11:02:04,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97379 to 95663. [2025-02-05 11:02:04,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95663 states, 95662 states have (on average 1.074418264305576) internal successors, (102781), 95662 states have internal predecessors, (102781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95663 states to 95663 states and 102781 transitions. [2025-02-05 11:02:04,535 INFO L78 Accepts]: Start accepts. Automaton has 95663 states and 102781 transitions. Word has length 1806 [2025-02-05 11:02:04,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:02:04,535 INFO L471 AbstractCegarLoop]: Abstraction has 95663 states and 102781 transitions. [2025-02-05 11:02:04,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 2 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 95663 states and 102781 transitions. [2025-02-05 11:02:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1916 [2025-02-05 11:02:04,597 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:02:04,597 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:02:04,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 11:02:04,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:02:04,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:02:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash -772058067, now seen corresponding path program 1 times [2025-02-05 11:02:04,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:02:04,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048433190] [2025-02-05 11:02:04,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:02:04,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:02:04,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1915 statements into 1 equivalence classes. [2025-02-05 11:02:04,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1915 of 1915 statements. [2025-02-05 11:02:04,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:02:04,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:02:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 11:02:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:02:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048433190] [2025-02-05 11:02:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048433190] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:02:06,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:02:06,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:02:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878836801] [2025-02-05 11:02:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:02:06,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:02:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:02:06,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:02:06,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:06,717 INFO L87 Difference]: Start difference. First operand 95663 states and 102781 transitions. Second operand has 3 states, 3 states have (on average 619.6666666666666) internal successors, (1859), 3 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:02:11,343 INFO L93 Difference]: Finished difference Result 252531 states and 271880 transitions. [2025-02-05 11:02:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:02:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 619.6666666666666) internal successors, (1859), 3 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1915 [2025-02-05 11:02:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:02:11,503 INFO L225 Difference]: With dead ends: 252531 [2025-02-05 11:02:11,503 INFO L226 Difference]: Without dead ends: 155172 [2025-02-05 11:02:11,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:11,575 INFO L435 NwaCegarLoop]: 3370 mSDtfsCounter, 1790 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 5170 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 5993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 5170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-05 11:02:11,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 3588 Invalid, 5993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 5170 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-05 11:02:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155172 states. [2025-02-05 11:02:13,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155172 to 153405. [2025-02-05 11:02:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153405 states, 153404 states have (on average 1.0581340773382701) internal successors, (162322), 153404 states have internal predecessors, (162322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153405 states to 153405 states and 162322 transitions. [2025-02-05 11:02:13,462 INFO L78 Accepts]: Start accepts. Automaton has 153405 states and 162322 transitions. Word has length 1915 [2025-02-05 11:02:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:02:13,462 INFO L471 AbstractCegarLoop]: Abstraction has 153405 states and 162322 transitions. [2025-02-05 11:02:13,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.6666666666666) internal successors, (1859), 3 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 153405 states and 162322 transitions. [2025-02-05 11:02:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2074 [2025-02-05 11:02:13,783 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:02:13,787 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:02:13,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 11:02:13,788 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:02:13,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:02:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1770892574, now seen corresponding path program 1 times [2025-02-05 11:02:13,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:02:13,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703771561] [2025-02-05 11:02:13,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:02:13,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:02:14,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2073 statements into 1 equivalence classes. [2025-02-05 11:02:14,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2073 of 2073 statements. [2025-02-05 11:02:14,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:02:14,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:02:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 11:02:14,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:02:14,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703771561] [2025-02-05 11:02:14,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703771561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:02:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:02:14,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:02:14,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628845689] [2025-02-05 11:02:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:02:14,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:02:14,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:02:14,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:02:14,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:14,994 INFO L87 Difference]: Start difference. First operand 153405 states and 162322 transitions. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:02:20,011 INFO L93 Difference]: Finished difference Result 371340 states and 394481 transitions. [2025-02-05 11:02:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:02:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2073 [2025-02-05 11:02:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:02:20,486 INFO L225 Difference]: With dead ends: 371340 [2025-02-05 11:02:20,486 INFO L226 Difference]: Without dead ends: 214541 [2025-02-05 11:02:20,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:20,552 INFO L435 NwaCegarLoop]: 3006 mSDtfsCounter, 1842 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4462 mSolverCounterSat, 1266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 5728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1266 IncrementalHoareTripleChecker+Valid, 4462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-02-05 11:02:20,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 3110 Invalid, 5728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1266 Valid, 4462 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-02-05 11:02:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214541 states. [2025-02-05 11:02:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214541 to 209440. [2025-02-05 11:02:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209440 states, 209439 states have (on average 1.0556964080233386) internal successors, (221104), 209439 states have internal predecessors, (221104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209440 states to 209440 states and 221104 transitions. [2025-02-05 11:02:23,315 INFO L78 Accepts]: Start accepts. Automaton has 209440 states and 221104 transitions. Word has length 2073 [2025-02-05 11:02:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:02:23,319 INFO L471 AbstractCegarLoop]: Abstraction has 209440 states and 221104 transitions. [2025-02-05 11:02:23,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:02:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 209440 states and 221104 transitions. [2025-02-05 11:02:23,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2080 [2025-02-05 11:02:23,470 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:02:23,471 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:02:23,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 11:02:23,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:02:23,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:02:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash 211734610, now seen corresponding path program 1 times [2025-02-05 11:02:23,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:02:23,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101478375] [2025-02-05 11:02:23,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:02:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:02:23,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2079 statements into 1 equivalence classes. [2025-02-05 11:02:23,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2079 of 2079 statements. [2025-02-05 11:02:23,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:02:23,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:02:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2025-02-05 11:02:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:02:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101478375] [2025-02-05 11:02:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101478375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:02:24,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:02:24,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:02:24,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530967980] [2025-02-05 11:02:24,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:02:24,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:02:24,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:02:24,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:02:24,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:02:24,718 INFO L87 Difference]: Start difference. First operand 209440 states and 221104 transitions. Second operand has 3 states, 3 states have (on average 645.6666666666666) internal successors, (1937), 3 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)