./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.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_amount500_file-82.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 17ab865f0f00c0e81e7df8c769539048861e387663f5be28b491c6160e2a443b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:44:37,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:44:37,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:44:37,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:44:37,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:44:38,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:44:38,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:44:38,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:44:38,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:44:38,016 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:44:38,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:44:38,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:44:38,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:44:38,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:44:38,017 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:44:38,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:44:38,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:44:38,019 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:44:38,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:44:38,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:44:38,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:44:38,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:44:38,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:44:38,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:44:38,020 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:44:38,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:44:38,021 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 -> 17ab865f0f00c0e81e7df8c769539048861e387663f5be28b491c6160e2a443b [2025-02-06 02:44:38,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:44:38,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:44:38,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:44:38,280 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:44:38,280 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:44:38,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.i [2025-02-06 02:44:39,625 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/976c75fac/4d55579721f24c9aa47089d699b0b096/FLAGf6aaaaf60 [2025-02-06 02:44:39,956 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:44:39,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-82.i [2025-02-06 02:44:39,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/976c75fac/4d55579721f24c9aa47089d699b0b096/FLAGf6aaaaf60 [2025-02-06 02:44:39,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/976c75fac/4d55579721f24c9aa47089d699b0b096 [2025-02-06 02:44:40,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:44:40,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:44:40,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:44:40,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:44:40,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:44:40,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b5fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40, skipping insertion in model container [2025-02-06 02:44:40,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:44:40,210 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_amount500_file-82.i[916,929] [2025-02-06 02:44:40,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:44:40,447 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:44:40,459 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_amount500_file-82.i[916,929] [2025-02-06 02:44:40,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:44:40,631 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:44:40,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40 WrapperNode [2025-02-06 02:44:40,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:44:40,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:44:40,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:44:40,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:44:40,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,821 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 719 [2025-02-06 02:44:40,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:44:40,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:44:40,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:44:40,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:44:40,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,999 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 02:44:40,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:40,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,043 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:44:41,097 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:44:41,098 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:44:41,098 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:44:41,099 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (1/1) ... [2025-02-06 02:44:41,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:44:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:44:41,129 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 02:44:41,134 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 02:44:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:44:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:44:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:44:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:44:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:44:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:44:41,308 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:44:41,310 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:44:42,588 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L610: havoc property_#t~ite49#1;havoc property_#t~bitwise48#1;havoc property_#t~short50#1;havoc property_#t~ite53#1;havoc property_#t~ite52#1;havoc property_#t~bitwise51#1;havoc property_#t~short54#1;havoc property_#t~bitwise55#1;havoc property_#t~short56#1;havoc property_#t~bitwise57#1;havoc property_#t~short58#1;havoc property_#t~bitwise59#1;havoc property_#t~short60#1;havoc property_#t~ite65#1;havoc property_#t~ite64#1;havoc property_#t~ite63#1;havoc property_#t~ite62#1;havoc property_#t~bitwise61#1;havoc property_#t~short66#1; [2025-02-06 02:44:42,779 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-02-06 02:44:42,780 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:44:42,823 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:44:42,824 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:44:42,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:44:42 BoogieIcfgContainer [2025-02-06 02:44:42,824 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:44:42,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:44:42,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:44:42,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:44:42,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:44:40" (1/3) ... [2025-02-06 02:44:42,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d28c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:44:42, skipping insertion in model container [2025-02-06 02:44:42,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:40" (2/3) ... [2025-02-06 02:44:42,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d28c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:44:42, skipping insertion in model container [2025-02-06 02:44:42,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:44:42" (3/3) ... [2025-02-06 02:44:42,834 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-82.i [2025-02-06 02:44:42,850 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:44:42,853 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-82.i that has 2 procedures, 293 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:44:42,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:44:42,941 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;@4be7da81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:44:42,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:44:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-02-06 02:44:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2025-02-06 02:44:42,977 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:42,978 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:42,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:42,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:42,985 INFO L85 PathProgramCache]: Analyzing trace with hash -670966499, now seen corresponding path program 1 times [2025-02-06 02:44:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410046713] [2025-02-06 02:44:42,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:42,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:43,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 442 statements into 1 equivalence classes. [2025-02-06 02:44:43,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 442 of 442 statements. [2025-02-06 02:44:43,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:43,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2025-02-06 02:44:43,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:43,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410046713] [2025-02-06 02:44:43,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410046713] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:44:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786961694] [2025-02-06 02:44:43,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:43,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:44:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:44:43,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:44:43,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:44:43,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 442 statements into 1 equivalence classes. [2025-02-06 02:44:44,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 442 of 442 statements. [2025-02-06 02:44:44,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:44,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:44,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:44:44,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:44:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2025-02-06 02:44:44,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:44:44,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786961694] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:44,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:44:44,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:44:44,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326580101] [2025-02-06 02:44:44,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:44,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:44:44,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:44,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:44:44,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:44:44,294 INFO L87 Difference]: Start difference. First operand has 293 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2025-02-06 02:44:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:44,383 INFO L93 Difference]: Finished difference Result 579 states and 1017 transitions. [2025-02-06 02:44:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:44:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) Word has length 442 [2025-02-06 02:44:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:44,397 INFO L225 Difference]: With dead ends: 579 [2025-02-06 02:44:44,397 INFO L226 Difference]: Without dead ends: 289 [2025-02-06 02:44:44,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:44:44,407 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:44,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:44:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2025-02-06 02:44:44,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2025-02-06 02:44:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 223 states have (on average 1.5426008968609866) internal successors, (344), 223 states have internal predecessors, (344), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-02-06 02:44:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 472 transitions. [2025-02-06 02:44:44,488 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 472 transitions. Word has length 442 [2025-02-06 02:44:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:44,490 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 472 transitions. [2025-02-06 02:44:44,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2025-02-06 02:44:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 472 transitions. [2025-02-06 02:44:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2025-02-06 02:44:44,504 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:44,504 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:44,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 02:44:44,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:44:44,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:44,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -778396263, now seen corresponding path program 1 times [2025-02-06 02:44:44,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:44,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156596781] [2025-02-06 02:44:44,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:44,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 442 statements into 1 equivalence classes. [2025-02-06 02:44:44,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 442 of 442 statements. [2025-02-06 02:44:44,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:44,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:45,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:45,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:45,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156596781] [2025-02-06 02:44:45,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156596781] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:44:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984295594] [2025-02-06 02:44:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:45,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:44:45,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:45,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:44:45,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:44:45,917 INFO L87 Difference]: Start difference. First operand 289 states and 472 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2025-02-06 02:44:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:47,111 INFO L93 Difference]: Finished difference Result 1560 states and 2555 transitions. [2025-02-06 02:44:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:44:47,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) Word has length 442 [2025-02-06 02:44:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:47,133 INFO L225 Difference]: With dead ends: 1560 [2025-02-06 02:44:47,133 INFO L226 Difference]: Without dead ends: 1274 [2025-02-06 02:44:47,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:44:47,137 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 1650 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:47,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3245 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 02:44:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2025-02-06 02:44:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1018. [2025-02-06 02:44:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 757 states have (on average 1.5257595772787318) internal successors, (1155), 757 states have internal predecessors, (1155), 256 states have call successors, (256), 4 states have call predecessors, (256), 4 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2025-02-06 02:44:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1667 transitions. [2025-02-06 02:44:47,333 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1667 transitions. Word has length 442 [2025-02-06 02:44:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:47,336 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1667 transitions. [2025-02-06 02:44:47,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 2 states have call successors, (64) [2025-02-06 02:44:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1667 transitions. [2025-02-06 02:44:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2025-02-06 02:44:47,344 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:47,344 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:47,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:44:47,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:47,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1931683236, now seen corresponding path program 1 times [2025-02-06 02:44:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:47,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742703215] [2025-02-06 02:44:47,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:47,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 443 statements into 1 equivalence classes. [2025-02-06 02:44:47,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 443 of 443 statements. [2025-02-06 02:44:47,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:47,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:48,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:48,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742703215] [2025-02-06 02:44:48,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742703215] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:48,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:48,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:44:48,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605958054] [2025-02-06 02:44:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:48,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:44:48,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:48,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:44:48,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:44:48,283 INFO L87 Difference]: Start difference. First operand 1018 states and 1667 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:48,750 INFO L93 Difference]: Finished difference Result 2182 states and 3579 transitions. [2025-02-06 02:44:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:44:48,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 443 [2025-02-06 02:44:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:48,766 INFO L225 Difference]: With dead ends: 2182 [2025-02-06 02:44:48,766 INFO L226 Difference]: Without dead ends: 1298 [2025-02-06 02:44:48,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:44:48,773 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 395 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:48,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1323 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:44:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2025-02-06 02:44:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1018. [2025-02-06 02:44:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 757 states have (on average 1.52443857331572) internal successors, (1154), 757 states have internal predecessors, (1154), 256 states have call successors, (256), 4 states have call predecessors, (256), 4 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2025-02-06 02:44:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1666 transitions. [2025-02-06 02:44:48,916 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1666 transitions. Word has length 443 [2025-02-06 02:44:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:48,918 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1666 transitions. [2025-02-06 02:44:48,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1666 transitions. [2025-02-06 02:44:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2025-02-06 02:44:48,927 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:48,928 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:48,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:44:48,928 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:48,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:48,929 INFO L85 PathProgramCache]: Analyzing trace with hash 625519090, now seen corresponding path program 1 times [2025-02-06 02:44:48,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:48,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188252151] [2025-02-06 02:44:48,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:48,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:48,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 443 statements into 1 equivalence classes. [2025-02-06 02:44:49,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 443 of 443 statements. [2025-02-06 02:44:49,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:49,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:50,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188252151] [2025-02-06 02:44:50,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188252151] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:50,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:50,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:44:50,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25494873] [2025-02-06 02:44:50,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:50,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:44:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:50,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:44:50,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:44:50,264 INFO L87 Difference]: Start difference. First operand 1018 states and 1666 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:50,741 INFO L93 Difference]: Finished difference Result 2201 states and 3611 transitions. [2025-02-06 02:44:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:44:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 443 [2025-02-06 02:44:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:50,754 INFO L225 Difference]: With dead ends: 2201 [2025-02-06 02:44:50,755 INFO L226 Difference]: Without dead ends: 1298 [2025-02-06 02:44:50,758 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 02:44:50,759 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 484 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:50,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1329 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:44:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2025-02-06 02:44:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1250. [2025-02-06 02:44:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 989 states have (on average 1.5611729019211324) internal successors, (1544), 989 states have internal predecessors, (1544), 256 states have call successors, (256), 4 states have call predecessors, (256), 4 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2025-02-06 02:44:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 2056 transitions. [2025-02-06 02:44:50,886 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 2056 transitions. Word has length 443 [2025-02-06 02:44:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:50,888 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 2056 transitions. [2025-02-06 02:44:50,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 2056 transitions. [2025-02-06 02:44:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2025-02-06 02:44:50,899 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:50,900 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:50,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:44:50,901 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:50,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:50,902 INFO L85 PathProgramCache]: Analyzing trace with hash -761275136, now seen corresponding path program 1 times [2025-02-06 02:44:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:50,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076371967] [2025-02-06 02:44:50,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:50,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 444 statements into 1 equivalence classes. [2025-02-06 02:44:51,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 444 of 444 statements. [2025-02-06 02:44:51,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:51,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:51,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076371967] [2025-02-06 02:44:51,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076371967] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:51,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:44:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734621265] [2025-02-06 02:44:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:51,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:44:51,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:51,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:44:51,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:44:51,595 INFO L87 Difference]: Start difference. First operand 1250 states and 2056 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:52,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:52,338 INFO L93 Difference]: Finished difference Result 1955 states and 3205 transitions. [2025-02-06 02:44:52,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:44:52,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 444 [2025-02-06 02:44:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:52,351 INFO L225 Difference]: With dead ends: 1955 [2025-02-06 02:44:52,352 INFO L226 Difference]: Without dead ends: 1578 [2025-02-06 02:44:52,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:44:52,356 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 707 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:52,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1920 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 02:44:52,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2025-02-06 02:44:52,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1368. [2025-02-06 02:44:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1107 states have (on average 1.5772357723577235) internal successors, (1746), 1107 states have internal predecessors, (1746), 256 states have call successors, (256), 4 states have call predecessors, (256), 4 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2025-02-06 02:44:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 2258 transitions. [2025-02-06 02:44:52,510 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 2258 transitions. Word has length 444 [2025-02-06 02:44:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:52,511 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 2258 transitions. [2025-02-06 02:44:52,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 2258 transitions. [2025-02-06 02:44:52,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2025-02-06 02:44:52,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:52,523 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:52,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:44:52,526 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:52,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1863178591, now seen corresponding path program 1 times [2025-02-06 02:44:52,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:52,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128063646] [2025-02-06 02:44:52,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:52,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:52,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 444 statements into 1 equivalence classes. [2025-02-06 02:44:52,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 444 of 444 statements. [2025-02-06 02:44:52,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:52,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:52,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:52,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128063646] [2025-02-06 02:44:52,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128063646] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:52,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:52,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:44:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535982840] [2025-02-06 02:44:52,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:52,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:44:52,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:52,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:44:52,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:44:52,855 INFO L87 Difference]: Start difference. First operand 1368 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:53,049 INFO L93 Difference]: Finished difference Result 2713 states and 4469 transitions. [2025-02-06 02:44:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:44:53,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 444 [2025-02-06 02:44:53,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:53,065 INFO L225 Difference]: With dead ends: 2713 [2025-02-06 02:44:53,066 INFO L226 Difference]: Without dead ends: 2336 [2025-02-06 02:44:53,069 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 02:44:53,070 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 322 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:53,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1120 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:44:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2025-02-06 02:44:53,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 1381. [2025-02-06 02:44:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1120 states have (on average 1.574107142857143) internal successors, (1763), 1120 states have internal predecessors, (1763), 256 states have call successors, (256), 4 states have call predecessors, (256), 4 states have return successors, (256), 256 states have call predecessors, (256), 256 states have call successors, (256) [2025-02-06 02:44:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 2275 transitions. [2025-02-06 02:44:53,179 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 2275 transitions. Word has length 444 [2025-02-06 02:44:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:53,181 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 2275 transitions. [2025-02-06 02:44:53,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 2275 transitions. [2025-02-06 02:44:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2025-02-06 02:44:53,186 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:53,187 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:53,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:44:53,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:53,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1400928299, now seen corresponding path program 1 times [2025-02-06 02:44:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:53,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404671306] [2025-02-06 02:44:53,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:53,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:53,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 445 statements into 1 equivalence classes. [2025-02-06 02:44:53,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 445 of 445 statements. [2025-02-06 02:44:53,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:53,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:53,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:53,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:53,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404671306] [2025-02-06 02:44:53,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404671306] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:53,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:53,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:44:53,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592730023] [2025-02-06 02:44:53,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:53,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:44:53,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:53,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:44:53,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:44:53,930 INFO L87 Difference]: Start difference. First operand 1381 states and 2275 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:54,992 INFO L93 Difference]: Finished difference Result 4949 states and 8144 transitions. [2025-02-06 02:44:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:44:54,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 445 [2025-02-06 02:44:54,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:55,014 INFO L225 Difference]: With dead ends: 4949 [2025-02-06 02:44:55,014 INFO L226 Difference]: Without dead ends: 3738 [2025-02-06 02:44:55,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:44:55,020 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 1206 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:55,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 2187 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 02:44:55,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2025-02-06 02:44:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 2860. [2025-02-06 02:44:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2565 states have (on average 1.6292397660818714) internal successors, (4179), 2568 states have internal predecessors, (4179), 286 states have call successors, (286), 8 states have call predecessors, (286), 8 states have return successors, (286), 283 states have call predecessors, (286), 286 states have call successors, (286) [2025-02-06 02:44:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4751 transitions. [2025-02-06 02:44:55,213 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4751 transitions. Word has length 445 [2025-02-06 02:44:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:55,214 INFO L471 AbstractCegarLoop]: Abstraction has 2860 states and 4751 transitions. [2025-02-06 02:44:55,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4751 transitions. [2025-02-06 02:44:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2025-02-06 02:44:55,221 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:55,221 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:55,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:44:55,222 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:55,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:55,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1647241386, now seen corresponding path program 1 times [2025-02-06 02:44:55,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:55,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810280315] [2025-02-06 02:44:55,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:55,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 445 statements into 1 equivalence classes. [2025-02-06 02:44:55,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 445 of 445 statements. [2025-02-06 02:44:55,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:55,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:55,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:55,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810280315] [2025-02-06 02:44:55,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810280315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:55,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:55,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:44:55,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458369120] [2025-02-06 02:44:55,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:55,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:44:55,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:55,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:44:55,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:44:55,696 INFO L87 Difference]: Start difference. First operand 2860 states and 4751 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:56,730 INFO L93 Difference]: Finished difference Result 6100 states and 10094 transitions. [2025-02-06 02:44:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:44:56,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 445 [2025-02-06 02:44:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:56,758 INFO L225 Difference]: With dead ends: 6100 [2025-02-06 02:44:56,758 INFO L226 Difference]: Without dead ends: 4150 [2025-02-06 02:44:56,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:44:56,766 INFO L435 NwaCegarLoop]: 696 mSDtfsCounter, 634 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:56,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 2042 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 02:44:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2025-02-06 02:44:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 3881. [2025-02-06 02:44:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3434 states have (on average 1.613861386138614) internal successors, (5542), 3439 states have internal predecessors, (5542), 434 states have call successors, (434), 12 states have call predecessors, (434), 12 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2025-02-06 02:44:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 6410 transitions. [2025-02-06 02:44:57,026 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 6410 transitions. Word has length 445 [2025-02-06 02:44:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:57,027 INFO L471 AbstractCegarLoop]: Abstraction has 3881 states and 6410 transitions. [2025-02-06 02:44:57,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 6410 transitions. [2025-02-06 02:44:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2025-02-06 02:44:57,032 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:57,033 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:57,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:44:57,033 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:57,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:57,034 INFO L85 PathProgramCache]: Analyzing trace with hash -813335208, now seen corresponding path program 1 times [2025-02-06 02:44:57,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:57,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915943391] [2025-02-06 02:44:57,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:57,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:57,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 446 statements into 1 equivalence classes. [2025-02-06 02:44:57,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 446 of 446 statements. [2025-02-06 02:44:57,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:57,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:57,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915943391] [2025-02-06 02:44:57,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915943391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:57,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:57,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:44:57,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663955103] [2025-02-06 02:44:57,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:57,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:44:57,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:57,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:44:57,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:44:57,823 INFO L87 Difference]: Start difference. First operand 3881 states and 6410 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:58,216 INFO L93 Difference]: Finished difference Result 10689 states and 17644 transitions. [2025-02-06 02:44:58,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:44:58,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 446 [2025-02-06 02:44:58,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:58,266 INFO L225 Difference]: With dead ends: 10689 [2025-02-06 02:44:58,266 INFO L226 Difference]: Without dead ends: 7449 [2025-02-06 02:44:58,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:44:58,280 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 315 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:58,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1987 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:44:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2025-02-06 02:44:58,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 7434. [2025-02-06 02:44:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 6607 states have (on average 1.6123808082336915) internal successors, (10653), 6617 states have internal predecessors, (10653), 804 states have call successors, (804), 22 states have call predecessors, (804), 22 states have return successors, (804), 794 states have call predecessors, (804), 804 states have call successors, (804) [2025-02-06 02:44:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 12261 transitions. [2025-02-06 02:44:58,754 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 12261 transitions. Word has length 446 [2025-02-06 02:44:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:58,757 INFO L471 AbstractCegarLoop]: Abstraction has 7434 states and 12261 transitions. [2025-02-06 02:44:58,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:44:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 12261 transitions. [2025-02-06 02:44:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2025-02-06 02:44:58,764 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:58,765 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:58,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:44:58,765 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:58,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash -875067539, now seen corresponding path program 1 times [2025-02-06 02:44:58,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:58,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063179653] [2025-02-06 02:44:58,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:58,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:58,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 447 statements into 1 equivalence classes. [2025-02-06 02:44:59,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 447 of 447 statements. [2025-02-06 02:44:59,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:59,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:44:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063179653] [2025-02-06 02:44:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063179653] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:59,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:59,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:44:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752244869] [2025-02-06 02:44:59,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:59,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:44:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:59,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:44:59,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:44:59,782 INFO L87 Difference]: Start difference. First operand 7434 states and 12261 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:00,575 INFO L93 Difference]: Finished difference Result 27945 states and 46111 transitions. [2025-02-06 02:45:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:45:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 447 [2025-02-06 02:45:00,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:00,665 INFO L225 Difference]: With dead ends: 27945 [2025-02-06 02:45:00,665 INFO L226 Difference]: Without dead ends: 20696 [2025-02-06 02:45:00,692 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 02:45:00,693 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 1024 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:00,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 1408 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:45:00,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20696 states. [2025-02-06 02:45:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20696 to 14515. [2025-02-06 02:45:01,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14515 states, 12928 states have (on average 1.6033415841584158) internal successors, (20728), 12948 states have internal predecessors, (20728), 1544 states have call successors, (1544), 42 states have call predecessors, (1544), 42 states have return successors, (1544), 1524 states have call predecessors, (1544), 1544 states have call successors, (1544) [2025-02-06 02:45:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14515 states to 14515 states and 23816 transitions. [2025-02-06 02:45:01,698 INFO L78 Accepts]: Start accepts. Automaton has 14515 states and 23816 transitions. Word has length 447 [2025-02-06 02:45:01,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:01,699 INFO L471 AbstractCegarLoop]: Abstraction has 14515 states and 23816 transitions. [2025-02-06 02:45:01,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 14515 states and 23816 transitions. [2025-02-06 02:45:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2025-02-06 02:45:01,710 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:01,710 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:01,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 02:45:01,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1083765842, now seen corresponding path program 1 times [2025-02-06 02:45:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597357333] [2025-02-06 02:45:01,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:01,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 447 statements into 1 equivalence classes. [2025-02-06 02:45:02,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 447 of 447 statements. [2025-02-06 02:45:02,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:02,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2025-02-06 02:45:02,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:02,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597357333] [2025-02-06 02:45:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597357333] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:02,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:02,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:45:02,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970797159] [2025-02-06 02:45:02,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:02,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:45:02,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:02,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:45:02,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:45:02,786 INFO L87 Difference]: Start difference. First operand 14515 states and 23816 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:03,606 INFO L93 Difference]: Finished difference Result 39759 states and 65151 transitions. [2025-02-06 02:45:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:45:03,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 447 [2025-02-06 02:45:03,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:03,715 INFO L225 Difference]: With dead ends: 39759 [2025-02-06 02:45:03,715 INFO L226 Difference]: Without dead ends: 25921 [2025-02-06 02:45:03,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:45:03,764 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 258 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:03,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1282 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:45:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25921 states. [2025-02-06 02:45:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25921 to 25899. [2025-02-06 02:45:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25899 states, 23771 states have (on average 1.6083042362542594) internal successors, (38231), 23831 states have internal predecessors, (38231), 2044 states have call successors, (2044), 83 states have call predecessors, (2044), 83 states have return successors, (2044), 1984 states have call predecessors, (2044), 2044 states have call successors, (2044) [2025-02-06 02:45:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25899 states to 25899 states and 42319 transitions. [2025-02-06 02:45:04,939 INFO L78 Accepts]: Start accepts. Automaton has 25899 states and 42319 transitions. Word has length 447 [2025-02-06 02:45:04,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:04,940 INFO L471 AbstractCegarLoop]: Abstraction has 25899 states and 42319 transitions. [2025-02-06 02:45:04,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 25899 states and 42319 transitions. [2025-02-06 02:45:04,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2025-02-06 02:45:04,957 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:04,957 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:04,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 02:45:04,959 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:04,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:04,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1908528287, now seen corresponding path program 1 times [2025-02-06 02:45:04,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:04,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618163674] [2025-02-06 02:45:04,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:04,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:04,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 448 statements into 1 equivalence classes. [2025-02-06 02:45:05,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 448 of 448 statements. [2025-02-06 02:45:05,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:05,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:06,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618163674] [2025-02-06 02:45:06,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618163674] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772262958] [2025-02-06 02:45:06,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:06,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:06,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:06,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 02:45:06,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 448 statements into 1 equivalence classes. [2025-02-06 02:45:06,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 448 of 448 statements. [2025-02-06 02:45:06,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:06,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:06,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 02:45:06,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 1682 proven. 351 refuted. 0 times theorem prover too weak. 6031 trivial. 0 not checked. [2025-02-06 02:45:08,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 21 proven. 354 refuted. 0 times theorem prover too weak. 7689 trivial. 0 not checked. [2025-02-06 02:45:09,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772262958] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:09,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:09,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 18 [2025-02-06 02:45:09,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239638618] [2025-02-06 02:45:09,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:09,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:45:09,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:09,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:45:09,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:45:09,620 INFO L87 Difference]: Start difference. First operand 25899 states and 42319 transitions. Second operand has 18 states, 18 states have (on average 13.0) internal successors, (234), 18 states have internal predecessors, (234), 5 states have call successors, (190), 3 states have call predecessors, (190), 7 states have return successors, (191), 4 states have call predecessors, (191), 5 states have call successors, (191) [2025-02-06 02:45:12,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:12,427 INFO L93 Difference]: Finished difference Result 81593 states and 134668 transitions. [2025-02-06 02:45:12,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 02:45:12,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.0) internal successors, (234), 18 states have internal predecessors, (234), 5 states have call successors, (190), 3 states have call predecessors, (190), 7 states have return successors, (191), 4 states have call predecessors, (191), 5 states have call successors, (191) Word has length 448 [2025-02-06 02:45:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:12,730 INFO L225 Difference]: With dead ends: 81593 [2025-02-06 02:45:12,732 INFO L226 Difference]: Without dead ends: 55832 [2025-02-06 02:45:12,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 886 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2025-02-06 02:45:12,786 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 3052 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:12,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 3165 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-06 02:45:12,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55832 states. [2025-02-06 02:45:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55832 to 31531. [2025-02-06 02:45:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31531 states, 29241 states have (on average 1.5856160870011287) internal successors, (46365), 29301 states have internal predecessors, (46365), 2044 states have call successors, (2044), 245 states have call predecessors, (2044), 245 states have return successors, (2044), 1984 states have call predecessors, (2044), 2044 states have call successors, (2044) [2025-02-06 02:45:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 50453 transitions. [2025-02-06 02:45:14,589 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 50453 transitions. Word has length 448 [2025-02-06 02:45:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:14,590 INFO L471 AbstractCegarLoop]: Abstraction has 31531 states and 50453 transitions. [2025-02-06 02:45:14,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.0) internal successors, (234), 18 states have internal predecessors, (234), 5 states have call successors, (190), 3 states have call predecessors, (190), 7 states have return successors, (191), 4 states have call predecessors, (191), 5 states have call successors, (191) [2025-02-06 02:45:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 50453 transitions. [2025-02-06 02:45:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2025-02-06 02:45:14,612 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:14,612 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:14,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 02:45:14,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:14,813 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:14,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 908522014, now seen corresponding path program 1 times [2025-02-06 02:45:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870436494] [2025-02-06 02:45:14,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:14,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 448 statements into 1 equivalence classes. [2025-02-06 02:45:15,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 448 of 448 statements. [2025-02-06 02:45:15,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:15,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 27 proven. 162 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:19,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870436494] [2025-02-06 02:45:19,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870436494] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:19,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671945651] [2025-02-06 02:45:19,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:19,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:19,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:19,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:19,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 02:45:19,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 448 statements into 1 equivalence classes. [2025-02-06 02:45:19,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 448 of 448 statements. [2025-02-06 02:45:19,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:19,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:19,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:45:19,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 3789 proven. 120 refuted. 0 times theorem prover too weak. 4155 trivial. 0 not checked. [2025-02-06 02:45:20,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 69 proven. 120 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:20,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671945651] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:20,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:20,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 21 [2025-02-06 02:45:20,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599033054] [2025-02-06 02:45:20,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:20,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 02:45:20,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:20,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 02:45:20,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2025-02-06 02:45:20,574 INFO L87 Difference]: Start difference. First operand 31531 states and 50453 transitions. Second operand has 21 states, 21 states have (on average 14.761904761904763) internal successors, (310), 21 states have internal predecessors, (310), 7 states have call successors, (168), 2 states have call predecessors, (168), 4 states have return successors, (169), 6 states have call predecessors, (169), 7 states have call successors, (169) [2025-02-06 02:45:25,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-02-06 02:45:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:27,823 INFO L93 Difference]: Finished difference Result 75049 states and 119432 transitions. [2025-02-06 02:45:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-02-06 02:45:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.761904761904763) internal successors, (310), 21 states have internal predecessors, (310), 7 states have call successors, (168), 2 states have call predecessors, (168), 4 states have return successors, (169), 6 states have call predecessors, (169), 7 states have call successors, (169) Word has length 448 [2025-02-06 02:45:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:27,970 INFO L225 Difference]: With dead ends: 75049 [2025-02-06 02:45:27,970 INFO L226 Difference]: Without dead ends: 44359 [2025-02-06 02:45:28,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=600, Invalid=2052, Unknown=0, NotChecked=0, Total=2652 [2025-02-06 02:45:28,026 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 6910 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6933 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:28,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6933 Valid, 4429 Invalid, 4039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2025-02-06 02:45:28,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44359 states. [2025-02-06 02:45:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44359 to 32290. [2025-02-06 02:45:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32290 states, 29978 states have (on average 1.5745880312228968) internal successors, (47203), 30038 states have internal predecessors, (47203), 2044 states have call successors, (2044), 267 states have call predecessors, (2044), 267 states have return successors, (2044), 1984 states have call predecessors, (2044), 2044 states have call successors, (2044) [2025-02-06 02:45:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32290 states to 32290 states and 51291 transitions. [2025-02-06 02:45:29,412 INFO L78 Accepts]: Start accepts. Automaton has 32290 states and 51291 transitions. Word has length 448 [2025-02-06 02:45:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:29,413 INFO L471 AbstractCegarLoop]: Abstraction has 32290 states and 51291 transitions. [2025-02-06 02:45:29,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.761904761904763) internal successors, (310), 21 states have internal predecessors, (310), 7 states have call successors, (168), 2 states have call predecessors, (168), 4 states have return successors, (169), 6 states have call predecessors, (169), 7 states have call successors, (169) [2025-02-06 02:45:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 32290 states and 51291 transitions. [2025-02-06 02:45:29,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2025-02-06 02:45:29,435 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:29,436 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:29,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 02:45:29,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:29,637 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:29,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash -887915575, now seen corresponding path program 1 times [2025-02-06 02:45:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:29,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916233592] [2025-02-06 02:45:29,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:29,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:29,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 449 statements into 1 equivalence classes. [2025-02-06 02:45:30,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 449 of 449 statements. [2025-02-06 02:45:30,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:30,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 27 proven. 162 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:31,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:31,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916233592] [2025-02-06 02:45:31,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916233592] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:31,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313016643] [2025-02-06 02:45:31,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:31,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:31,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:31,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:31,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 02:45:32,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 449 statements into 1 equivalence classes. [2025-02-06 02:45:32,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 449 of 449 statements. [2025-02-06 02:45:32,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:32,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:32,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:45:32,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:32,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:45:32,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313016643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:32,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:45:32,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 13 [2025-02-06 02:45:32,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889382860] [2025-02-06 02:45:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:32,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:45:32,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:32,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:45:32,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:45:32,234 INFO L87 Difference]: Start difference. First operand 32290 states and 51291 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:32,950 INFO L93 Difference]: Finished difference Result 64346 states and 102075 transitions. [2025-02-06 02:45:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:45:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) Word has length 449 [2025-02-06 02:45:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:33,048 INFO L225 Difference]: With dead ends: 64346 [2025-02-06 02:45:33,049 INFO L226 Difference]: Without dead ends: 32500 [2025-02-06 02:45:33,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 450 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2025-02-06 02:45:33,080 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 351 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:33,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 969 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:45:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32500 states. [2025-02-06 02:45:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32500 to 32374. [2025-02-06 02:45:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32374 states, 30041 states have (on average 1.5612662694317765) internal successors, (46902), 30101 states have internal predecessors, (46902), 2044 states have call successors, (2044), 288 states have call predecessors, (2044), 288 states have return successors, (2044), 1984 states have call predecessors, (2044), 2044 states have call successors, (2044) [2025-02-06 02:45:34,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32374 states to 32374 states and 50990 transitions. [2025-02-06 02:45:34,284 INFO L78 Accepts]: Start accepts. Automaton has 32374 states and 50990 transitions. Word has length 449 [2025-02-06 02:45:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:34,285 INFO L471 AbstractCegarLoop]: Abstraction has 32374 states and 50990 transitions. [2025-02-06 02:45:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2025-02-06 02:45:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 32374 states and 50990 transitions. [2025-02-06 02:45:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2025-02-06 02:45:34,305 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:34,305 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:34,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 02:45:34,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-06 02:45:34,507 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:34,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:34,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1496769991, now seen corresponding path program 1 times [2025-02-06 02:45:34,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:34,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240374757] [2025-02-06 02:45:34,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:34,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 449 statements into 1 equivalence classes. [2025-02-06 02:45:35,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 449 of 449 statements. [2025-02-06 02:45:35,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:35,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 27 proven. 162 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:38,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240374757] [2025-02-06 02:45:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240374757] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987017609] [2025-02-06 02:45:38,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:38,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:38,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:38,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:38,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 02:45:38,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 449 statements into 1 equivalence classes. [2025-02-06 02:45:38,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 449 of 449 statements. [2025-02-06 02:45:38,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:38,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:38,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:45:38,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 4093 proven. 96 refuted. 0 times theorem prover too weak. 3875 trivial. 0 not checked. [2025-02-06 02:45:38,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 93 proven. 96 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2025-02-06 02:45:39,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987017609] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:39,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:39,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 18 [2025-02-06 02:45:39,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103968794] [2025-02-06 02:45:39,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:39,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:45:39,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:39,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:45:39,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:45:39,273 INFO L87 Difference]: Start difference. First operand 32374 states and 50990 transitions. Second operand has 18 states, 17 states have (on average 14.294117647058824) internal successors, (243), 17 states have internal predecessors, (243), 7 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (161), 6 states have call predecessors, (161), 7 states have call successors, (161)