./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i --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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i -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 aec2cd5ae54508e6b09d164bd3878415d3b0f8002b89da4b1a1ed3f9475eb68f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:13:42,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:13:42,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:13:42,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:13:42,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:13:42,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:13:42,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:13:42,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:13:42,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:13:42,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:13:42,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:13:42,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:13:42,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:13:42,544 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:13:42,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:13:42,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:13:42,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:13:42,545 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 -> aec2cd5ae54508e6b09d164bd3878415d3b0f8002b89da4b1a1ed3f9475eb68f [2025-02-06 02:13:42,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:13:42,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:13:42,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:13:42,816 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:13:42,816 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:13:42,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i [2025-02-06 02:13:43,950 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0cf5d390/30c1087600bf463ba2e8c67c70b50719/FLAG736be39d2 [2025-02-06 02:13:44,248 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:13:44,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i [2025-02-06 02:13:44,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0cf5d390/30c1087600bf463ba2e8c67c70b50719/FLAG736be39d2 [2025-02-06 02:13:44,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0cf5d390/30c1087600bf463ba2e8c67c70b50719 [2025-02-06 02:13:44,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:13:44,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:13:44,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:13:44,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:13:44,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:13:44,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef3eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44, skipping insertion in model container [2025-02-06 02:13:44,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:13:44,667 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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i[916,929] [2025-02-06 02:13:44,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:13:44,789 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:13:44,797 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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i[916,929] [2025-02-06 02:13:44,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:13:44,913 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:13:44,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44 WrapperNode [2025-02-06 02:13:44,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:13:44,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:13:44,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:13:44,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:13:44,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,981 INFO L138 Inliner]: procedures = 26, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2025-02-06 02:13:44,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:13:44,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:13:44,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:13:44,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:13:44,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:44,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,037 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]. [2025-02-06 02:13:45,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,061 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:13:45,097 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:13:45,098 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:13:45,098 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:13:45,099 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (1/1) ... [2025-02-06 02:13:45,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:13:45,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:13:45,125 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) [2025-02-06 02:13:45,128 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 [2025-02-06 02:13:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:13:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:13:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:13:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:13:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:13:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:13:45,253 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:13:45,255 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:13:45,858 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L354: havoc property_#t~ite38#1;havoc property_#t~bitwise37#1;havoc property_#t~short39#1;havoc property_#t~ite41#1;havoc property_#t~bitwise40#1;havoc property_#t~short42#1;havoc property_#t~bitwise43#1;havoc property_#t~short44#1; [2025-02-06 02:13:45,913 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2025-02-06 02:13:45,913 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:13:45,927 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:13:45,927 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:13:45,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:13:45 BoogieIcfgContainer [2025-02-06 02:13:45,927 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:13:45,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:13:45,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:13:45,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:13:45,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:13:44" (1/3) ... [2025-02-06 02:13:45,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bf2484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:13:45, skipping insertion in model container [2025-02-06 02:13:45,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:13:44" (2/3) ... [2025-02-06 02:13:45,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bf2484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:13:45, skipping insertion in model container [2025-02-06 02:13:45,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:13:45" (3/3) ... [2025-02-06 02:13:45,934 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-14.i [2025-02-06 02:13:45,945 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:13:45,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-14.i that has 2 procedures, 179 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:13:46,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:13:46,014 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;@55f2d8fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:13:46,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:13:46,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 123 states have (on average 1.4634146341463414) internal successors, (180), 124 states have internal predecessors, (180), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-02-06 02:13:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2025-02-06 02:13:46,032 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:46,033 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:46,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:46,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1500753303, now seen corresponding path program 1 times [2025-02-06 02:13:46,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628333434] [2025-02-06 02:13:46,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:46,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:46,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 343 statements into 1 equivalence classes. [2025-02-06 02:13:46,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 343 of 343 statements. [2025-02-06 02:13:46,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:46,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:13:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:13:46,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:13:46,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628333434] [2025-02-06 02:13:46,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628333434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:13:46,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:13:46,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:13:46,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636365267] [2025-02-06 02:13:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:13:46,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:13:46,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:13:46,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:13:46,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:13:46,678 INFO L87 Difference]: Start difference. First operand has 179 states, 123 states have (on average 1.4634146341463414) internal successors, (180), 124 states have internal predecessors, (180), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:46,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:13:46,848 INFO L93 Difference]: Finished difference Result 515 states and 936 transitions. [2025-02-06 02:13:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:13:46,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 343 [2025-02-06 02:13:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:13:46,857 INFO L225 Difference]: With dead ends: 515 [2025-02-06 02:13:46,858 INFO L226 Difference]: Without dead ends: 339 [2025-02-06 02:13:46,863 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 [2025-02-06 02:13:46,865 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 255 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:13:46,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 701 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:13:46,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2025-02-06 02:13:46,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 184. [2025-02-06 02:13:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-02-06 02:13:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2025-02-06 02:13:46,933 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 343 [2025-02-06 02:13:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:13:46,935 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2025-02-06 02:13:46,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2025-02-06 02:13:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2025-02-06 02:13:46,942 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:46,943 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:46,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 02:13:46,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:46,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1246016758, now seen corresponding path program 1 times [2025-02-06 02:13:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:46,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944301111] [2025-02-06 02:13:46,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:46,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:46,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 343 statements into 1 equivalence classes. [2025-02-06 02:13:47,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 343 of 343 statements. [2025-02-06 02:13:47,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:47,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:13:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:13:47,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:13:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944301111] [2025-02-06 02:13:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944301111] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:13:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:13:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:13:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662190368] [2025-02-06 02:13:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:13:47,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:13:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:13:47,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:13:47,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:13:47,593 INFO L87 Difference]: Start difference. First operand 184 states and 291 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:13:47,924 INFO L93 Difference]: Finished difference Result 547 states and 868 transitions. [2025-02-06 02:13:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:13:47,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 343 [2025-02-06 02:13:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:13:47,930 INFO L225 Difference]: With dead ends: 547 [2025-02-06 02:13:47,930 INFO L226 Difference]: Without dead ends: 366 [2025-02-06 02:13:47,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:13:47,933 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 203 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:13:47,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 788 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:13:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-02-06 02:13:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 341. [2025-02-06 02:13:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-02-06 02:13:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 546 transitions. [2025-02-06 02:13:48,005 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 546 transitions. Word has length 343 [2025-02-06 02:13:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:13:48,007 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 546 transitions. [2025-02-06 02:13:48,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:48,009 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 546 transitions. [2025-02-06 02:13:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-06 02:13:48,014 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:48,014 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:48,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:13:48,014 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash 168555494, now seen corresponding path program 1 times [2025-02-06 02:13:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:48,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662656731] [2025-02-06 02:13:48,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:48,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-06 02:13:48,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-06 02:13:48,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:48,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:13:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:13:49,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:13:49,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662656731] [2025-02-06 02:13:49,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662656731] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:13:49,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:13:49,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:13:49,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540181988] [2025-02-06 02:13:49,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:13:49,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:13:49,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:13:49,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:13:49,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:13:49,045 INFO L87 Difference]: Start difference. First operand 341 states and 546 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:49,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:13:49,509 INFO L93 Difference]: Finished difference Result 699 states and 1106 transitions. [2025-02-06 02:13:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:13:49,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-02-06 02:13:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:13:49,515 INFO L225 Difference]: With dead ends: 699 [2025-02-06 02:13:49,515 INFO L226 Difference]: Without dead ends: 492 [2025-02-06 02:13:49,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:13:49,519 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 487 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:13:49,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 643 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:13:49,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2025-02-06 02:13:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 349. [2025-02-06 02:13:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 238 states have (on average 1.4201680672268908) internal successors, (338), 238 states have internal predecessors, (338), 106 states have call successors, (106), 4 states have call predecessors, (106), 4 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-02-06 02:13:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 550 transitions. [2025-02-06 02:13:49,589 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 550 transitions. Word has length 346 [2025-02-06 02:13:49,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:13:49,589 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 550 transitions. [2025-02-06 02:13:49,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:49,590 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 550 transitions. [2025-02-06 02:13:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-06 02:13:49,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:49,592 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:49,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:13:49,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:49,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 199575301, now seen corresponding path program 1 times [2025-02-06 02:13:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:49,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344636241] [2025-02-06 02:13:49,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:49,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:49,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-06 02:13:49,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-06 02:13:49,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:49,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:13:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:13:50,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:13:50,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344636241] [2025-02-06 02:13:50,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344636241] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:13:50,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:13:50,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:13:50,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116723171] [2025-02-06 02:13:50,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:13:50,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:13:50,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:13:50,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:13:50,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:13:50,080 INFO L87 Difference]: Start difference. First operand 349 states and 550 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:13:50,520 INFO L93 Difference]: Finished difference Result 909 states and 1439 transitions. [2025-02-06 02:13:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:13:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-02-06 02:13:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:13:50,526 INFO L225 Difference]: With dead ends: 909 [2025-02-06 02:13:50,527 INFO L226 Difference]: Without dead ends: 669 [2025-02-06 02:13:50,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:13:50,528 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 305 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:13:50,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1141 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:13:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2025-02-06 02:13:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 587. [2025-02-06 02:13:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 421 states have internal predecessors, (611), 159 states have call successors, (159), 6 states have call predecessors, (159), 6 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-02-06 02:13:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 929 transitions. [2025-02-06 02:13:50,621 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 929 transitions. Word has length 346 [2025-02-06 02:13:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:13:50,621 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 929 transitions. [2025-02-06 02:13:50,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 929 transitions. [2025-02-06 02:13:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-06 02:13:50,623 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:50,624 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:50,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:13:50,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1417113947, now seen corresponding path program 1 times [2025-02-06 02:13:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:50,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417767249] [2025-02-06 02:13:50,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:50,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-06 02:13:50,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-06 02:13:50,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:50,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:13:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:13:51,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:13:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417767249] [2025-02-06 02:13:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417767249] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:13:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:13:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:13:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615522142] [2025-02-06 02:13:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:13:51,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:13:51,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:13:51,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:13:51,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:13:51,161 INFO L87 Difference]: Start difference. First operand 587 states and 929 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:13:51,564 INFO L93 Difference]: Finished difference Result 1136 states and 1791 transitions. [2025-02-06 02:13:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:13:51,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-02-06 02:13:51,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:13:51,571 INFO L225 Difference]: With dead ends: 1136 [2025-02-06 02:13:51,571 INFO L226 Difference]: Without dead ends: 897 [2025-02-06 02:13:51,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:13:51,573 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 298 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:13:51,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 885 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:13:51,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2025-02-06 02:13:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 782. [2025-02-06 02:13:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 561 states have (on average 1.445632798573975) internal successors, (811), 561 states have internal predecessors, (811), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-02-06 02:13:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1235 transitions. [2025-02-06 02:13:51,697 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1235 transitions. Word has length 346 [2025-02-06 02:13:51,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:13:51,698 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1235 transitions. [2025-02-06 02:13:51,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:13:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1235 transitions. [2025-02-06 02:13:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-06 02:13:51,700 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:13:51,700 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:13:51,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:13:51,700 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:13:51,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:13:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1955169766, now seen corresponding path program 1 times [2025-02-06 02:13:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:13:51,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243563318] [2025-02-06 02:13:51,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:13:51,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:13:51,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-06 02:13:52,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-06 02:13:52,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:13:52,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:14:17,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:17,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243563318] [2025-02-06 02:14:17,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243563318] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:17,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:17,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 02:14:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768290782] [2025-02-06 02:14:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 02:14:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:17,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 02:14:17,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:14:17,038 INFO L87 Difference]: Start difference. First operand 782 states and 1235 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:14:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:17,929 INFO L93 Difference]: Finished difference Result 1816 states and 2821 transitions. [2025-02-06 02:14:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:14:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-02-06 02:14:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:17,935 INFO L225 Difference]: With dead ends: 1816 [2025-02-06 02:14:17,936 INFO L226 Difference]: Without dead ends: 1264 [2025-02-06 02:14:17,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 02:14:17,938 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 193 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:17,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1694 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 02:14:17,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2025-02-06 02:14:17,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 906. [2025-02-06 02:14:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 685 states have (on average 1.467153284671533) internal successors, (1005), 685 states have internal predecessors, (1005), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-02-06 02:14:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1429 transitions. [2025-02-06 02:14:18,001 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1429 transitions. Word has length 346 [2025-02-06 02:14:18,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:18,001 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1429 transitions. [2025-02-06 02:14:18,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:14:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1429 transitions. [2025-02-06 02:14:18,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-02-06 02:14:18,004 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:18,004 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:18,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:14:18,004 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:18,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:18,005 INFO L85 PathProgramCache]: Analyzing trace with hash 958097413, now seen corresponding path program 1 times [2025-02-06 02:14:18,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:18,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701052366] [2025-02-06 02:14:18,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:18,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:18,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-02-06 02:14:18,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-02-06 02:14:18,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:18,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:14:41,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:41,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701052366] [2025-02-06 02:14:41,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701052366] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:41,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 02:14:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457549140] [2025-02-06 02:14:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:41,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 02:14:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:41,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 02:14:41,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-02-06 02:14:41,580 INFO L87 Difference]: Start difference. First operand 906 states and 1429 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2025-02-06 02:14:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:42,921 INFO L93 Difference]: Finished difference Result 2129 states and 3299 transitions. [2025-02-06 02:14:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 02:14:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 346 [2025-02-06 02:14:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:42,928 INFO L225 Difference]: With dead ends: 2129 [2025-02-06 02:14:42,928 INFO L226 Difference]: Without dead ends: 1508 [2025-02-06 02:14:42,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2025-02-06 02:14:42,931 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 677 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:42,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2020 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 02:14:42,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2025-02-06 02:14:43,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 906. [2025-02-06 02:14:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 685 states have (on average 1.467153284671533) internal successors, (1005), 685 states have internal predecessors, (1005), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-02-06 02:14:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1429 transitions. [2025-02-06 02:14:43,009 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1429 transitions. Word has length 346 [2025-02-06 02:14:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:43,009 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1429 transitions. [2025-02-06 02:14:43,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2025-02-06 02:14:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1429 transitions. [2025-02-06 02:14:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2025-02-06 02:14:43,012 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:43,012 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:43,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:14:43,013 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:43,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:43,013 INFO L85 PathProgramCache]: Analyzing trace with hash -994540105, now seen corresponding path program 1 times [2025-02-06 02:14:43,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222020964] [2025-02-06 02:14:43,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:43,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-02-06 02:14:43,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-02-06 02:14:43,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:43,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:15:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-02-06 02:15:06,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:15:06,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222020964] [2025-02-06 02:15:06,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222020964] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:15:06,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:15:06,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 02:15:06,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298819939] [2025-02-06 02:15:06,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:15:06,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 02:15:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:15:06,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 02:15:06,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-02-06 02:15:06,763 INFO L87 Difference]: Start difference. First operand 906 states and 1429 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:15:07,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:15:07,903 INFO L93 Difference]: Finished difference Result 1969 states and 3061 transitions. [2025-02-06 02:15:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:15:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 347 [2025-02-06 02:15:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:15:07,910 INFO L225 Difference]: With dead ends: 1969 [2025-02-06 02:15:07,910 INFO L226 Difference]: Without dead ends: 1348 [2025-02-06 02:15:07,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:15:07,914 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 205 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:15:07,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1652 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 02:15:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2025-02-06 02:15:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 934. [2025-02-06 02:15:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 713 states have (on average 1.4726507713884993) internal successors, (1050), 713 states have internal predecessors, (1050), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-02-06 02:15:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1474 transitions. [2025-02-06 02:15:07,978 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1474 transitions. Word has length 347 [2025-02-06 02:15:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:15:07,981 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1474 transitions. [2025-02-06 02:15:07,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-02-06 02:15:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1474 transitions. [2025-02-06 02:15:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2025-02-06 02:15:07,984 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:15:07,984 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:15:07,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:15:07,984 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:15:07,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:15:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1500098730, now seen corresponding path program 1 times [2025-02-06 02:15:07,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:15:07,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319935814] [2025-02-06 02:15:07,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:15:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:15:08,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-02-06 02:15:08,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-02-06 02:15:08,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:15:08,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat