./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.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 c0271c86359ca1321e131492680f0610c424530e37b1dccfbb85027d39387777 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:20:21,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:20:21,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:20:21,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:20:21,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:20:21,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:20:21,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:20:21,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:20:21,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:20:21,777 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:20:21,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:20:21,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:20:21,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:20:21,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:20:21,779 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:20:21,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:20:21,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:20:21,780 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:20:21,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:20:21,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:20:21,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:20:21,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:20:21,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:20:21,782 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:20:21,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:20:21,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:20:21,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:20:21,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:20:21,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:20:21,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:20:21,784 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 -> c0271c86359ca1321e131492680f0610c424530e37b1dccfbb85027d39387777 [2025-02-06 02:20:22,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:20:22,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:20:22,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:20:22,079 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:20:22,079 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:20:22,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2025-02-06 02:20:23,374 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/02ee675cd/a00a08c00f0b4903a48177a141f11328/FLAG1382719da [2025-02-06 02:20:23,656 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:20:23,657 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2025-02-06 02:20:23,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/02ee675cd/a00a08c00f0b4903a48177a141f11328/FLAG1382719da [2025-02-06 02:20:23,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/02ee675cd/a00a08c00f0b4903a48177a141f11328 [2025-02-06 02:20:23,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:20:23,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:20:23,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:20:23,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:20:23,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:20:23,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:20:23" (1/1) ... [2025-02-06 02:20:23,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13491ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:23, skipping insertion in model container [2025-02-06 02:20:23,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:20:23" (1/1) ... [2025-02-06 02:20:23,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:20:24,125 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i[916,929] [2025-02-06 02:20:24,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:20:24,318 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:20:24,329 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-66.i[916,929] [2025-02-06 02:20:24,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:20:24,440 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:20:24,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24 WrapperNode [2025-02-06 02:20:24,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:20:24,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:20:24,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:20:24,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:20:24,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,540 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 448 [2025-02-06 02:20:24,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:20:24,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:20:24,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:20:24,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:20:24,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,615 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 02:20:24,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,636 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:20:24,665 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:20:24,665 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:20:24,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:20:24,666 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (1/1) ... [2025-02-06 02:20:24,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:20:24,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:24,701 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 02:20:24,705 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 02:20:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:20:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:20:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:20:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:20:24,815 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:20:24,816 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:20:25,498 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L348: havoc property_#t~ite38#1;havoc property_#t~ite37#1;havoc property_#t~bitwise34#1;havoc property_#t~ite36#1;havoc property_#t~bitwise35#1;havoc property_#t~short39#1;havoc property_#t~bitwise40#1;havoc property_#t~short41#1;havoc property_#t~ite45#1;havoc property_#t~ite44#1;havoc property_#t~ite43#1;havoc property_#t~bitwise42#1;havoc property_#t~short46#1; [2025-02-06 02:20:25,635 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2025-02-06 02:20:25,637 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:20:25,669 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:20:25,672 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:20:25,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:20:25 BoogieIcfgContainer [2025-02-06 02:20:25,672 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:20:25,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:20:25,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:20:25,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:20:25,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:20:23" (1/3) ... [2025-02-06 02:20:25,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efbf3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:20:25, skipping insertion in model container [2025-02-06 02:20:25,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:24" (2/3) ... [2025-02-06 02:20:25,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efbf3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:20:25, skipping insertion in model container [2025-02-06 02:20:25,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:20:25" (3/3) ... [2025-02-06 02:20:25,682 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-66.i [2025-02-06 02:20:25,696 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:20:25,699 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-66.i that has 2 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:20:25,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:20:25,779 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;@2e9ede27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:20:25,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:20:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 140 states have (on average 1.5071428571428571) internal successors, (211), 141 states have internal predecessors, (211), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-02-06 02:20:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-02-06 02:20:25,806 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:25,808 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:25,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:25,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1366721238, now seen corresponding path program 1 times [2025-02-06 02:20:25,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:25,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449235652] [2025-02-06 02:20:25,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:25,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:25,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-02-06 02:20:26,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-02-06 02:20:26,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:26,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2025-02-06 02:20:26,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:26,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449235652] [2025-02-06 02:20:26,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449235652] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:20:26,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631493655] [2025-02-06 02:20:26,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:26,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:26,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:26,374 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 02:20:26,376 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 02:20:26,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-02-06 02:20:26,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-02-06 02:20:26,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:26,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:26,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:20:26,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:20:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2025-02-06 02:20:26,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:20:26,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631493655] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:20:26,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:20:26,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:20:26,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415841572] [2025-02-06 02:20:26,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:20:26,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:20:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:26,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:20:26,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:20:26,787 INFO L87 Difference]: Start difference. First operand has 186 states, 140 states have (on average 1.5071428571428571) internal successors, (211), 141 states have internal predecessors, (211), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2025-02-06 02:20:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:26,832 INFO L93 Difference]: Finished difference Result 366 states and 632 transitions. [2025-02-06 02:20:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:20:26,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 295 [2025-02-06 02:20:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:26,841 INFO L225 Difference]: With dead ends: 366 [2025-02-06 02:20:26,842 INFO L226 Difference]: Without dead ends: 183 [2025-02-06 02:20:26,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 296 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 02:20:26,850 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:26,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:20:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-02-06 02:20:26,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2025-02-06 02:20:26,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 138 states have (on average 1.4782608695652173) internal successors, (204), 138 states have internal predecessors, (204), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-02-06 02:20:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 290 transitions. [2025-02-06 02:20:26,906 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 290 transitions. Word has length 295 [2025-02-06 02:20:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 290 transitions. [2025-02-06 02:20:26,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2025-02-06 02:20:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 290 transitions. [2025-02-06 02:20:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-02-06 02:20:26,915 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:26,916 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:26,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 02:20:27,117 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 02:20:27,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:27,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 972589043, now seen corresponding path program 1 times [2025-02-06 02:20:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556190218] [2025-02-06 02:20:27,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:27,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-02-06 02:20:27,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-02-06 02:20:27,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:27,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-02-06 02:20:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556190218] [2025-02-06 02:20:27,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556190218] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:20:27,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:20:27,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:20:27,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554811494] [2025-02-06 02:20:27,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:20:27,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:20:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:27,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:20:27,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:20:27,526 INFO L87 Difference]: Start difference. First operand 183 states and 290 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:27,714 INFO L93 Difference]: Finished difference Result 529 states and 842 transitions. [2025-02-06 02:20:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:20:27,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 295 [2025-02-06 02:20:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:27,722 INFO L225 Difference]: With dead ends: 529 [2025-02-06 02:20:27,723 INFO L226 Difference]: Without dead ends: 349 [2025-02-06 02:20:27,724 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 02:20:27,728 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 252 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:27,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 637 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:20:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2025-02-06 02:20:27,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 217. [2025-02-06 02:20:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.494186046511628) internal successors, (257), 172 states have internal predecessors, (257), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-02-06 02:20:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 343 transitions. [2025-02-06 02:20:27,758 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 343 transitions. Word has length 295 [2025-02-06 02:20:27,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:27,761 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 343 transitions. [2025-02-06 02:20:27,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 343 transitions. [2025-02-06 02:20:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-02-06 02:20:27,767 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:27,767 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:27,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:20:27,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:27,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1003608850, now seen corresponding path program 1 times [2025-02-06 02:20:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:27,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478893925] [2025-02-06 02:20:27,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:27,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-02-06 02:20:28,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-02-06 02:20:28,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:28,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-02-06 02:20:29,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478893925] [2025-02-06 02:20:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478893925] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:20:29,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:20:29,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:20:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626910216] [2025-02-06 02:20:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:20:29,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:20:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:29,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:20:29,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:20:29,080 INFO L87 Difference]: Start difference. First operand 217 states and 343 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:29,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:29,431 INFO L93 Difference]: Finished difference Result 692 states and 1102 transitions. [2025-02-06 02:20:29,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:20:29,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 295 [2025-02-06 02:20:29,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:29,435 INFO L225 Difference]: With dead ends: 692 [2025-02-06 02:20:29,436 INFO L226 Difference]: Without dead ends: 478 [2025-02-06 02:20:29,437 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 02:20:29,438 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 263 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:29,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 865 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:20:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2025-02-06 02:20:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 293. [2025-02-06 02:20:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 204 states have (on average 1.4166666666666667) internal successors, (289), 204 states have internal predecessors, (289), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-06 02:20:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 461 transitions. [2025-02-06 02:20:29,496 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 461 transitions. Word has length 295 [2025-02-06 02:20:29,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:29,498 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 461 transitions. [2025-02-06 02:20:29,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 461 transitions. [2025-02-06 02:20:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2025-02-06 02:20:29,502 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:29,502 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:29,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:20:29,503 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:29,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:29,504 INFO L85 PathProgramCache]: Analyzing trace with hash -100839935, now seen corresponding path program 1 times [2025-02-06 02:20:29,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:29,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896330349] [2025-02-06 02:20:29,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:29,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:29,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-02-06 02:20:29,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-02-06 02:20:29,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:29,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-02-06 02:20:30,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896330349] [2025-02-06 02:20:30,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896330349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:20:30,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:20:30,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:20:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810845061] [2025-02-06 02:20:30,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:20:30,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:20:30,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:30,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:20:30,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:20:30,267 INFO L87 Difference]: Start difference. First operand 293 states and 461 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:30,600 INFO L93 Difference]: Finished difference Result 631 states and 985 transitions. [2025-02-06 02:20:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:20:30,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 296 [2025-02-06 02:20:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:30,605 INFO L225 Difference]: With dead ends: 631 [2025-02-06 02:20:30,605 INFO L226 Difference]: Without dead ends: 417 [2025-02-06 02:20:30,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:20:30,607 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 475 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:30,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 540 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:20:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2025-02-06 02:20:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 301. [2025-02-06 02:20:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 210 states have (on average 1.4) internal successors, (294), 210 states have internal predecessors, (294), 86 states have call successors, (86), 4 states have call predecessors, (86), 4 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-06 02:20:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 466 transitions. [2025-02-06 02:20:30,672 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 466 transitions. Word has length 296 [2025-02-06 02:20:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:30,675 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 466 transitions. [2025-02-06 02:20:30,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 466 transitions. [2025-02-06 02:20:30,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2025-02-06 02:20:30,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:30,679 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:30,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:20:30,680 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:30,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash -430605696, now seen corresponding path program 1 times [2025-02-06 02:20:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:30,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895927094] [2025-02-06 02:20:30,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:30,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:30,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-02-06 02:20:31,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-02-06 02:20:31,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:31,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 33 proven. 93 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-02-06 02:20:32,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:32,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895927094] [2025-02-06 02:20:32,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895927094] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:20:32,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875709328] [2025-02-06 02:20:32,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:32,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:32,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:32,036 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 02:20:32,038 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 02:20:32,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 296 statements into 1 equivalence classes. [2025-02-06 02:20:32,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 296 of 296 statements. [2025-02-06 02:20:32,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:32,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:32,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 02:20:32,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:20:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 844 proven. 219 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2025-02-06 02:20:33,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:20:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 27 proven. 222 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2025-02-06 02:20:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875709328] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:20:34,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:20:34,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2025-02-06 02:20:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418752605] [2025-02-06 02:20:34,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:20:34,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 02:20:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:34,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 02:20:34,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:20:34,961 INFO L87 Difference]: Start difference. First operand 301 states and 466 transitions. Second operand has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) [2025-02-06 02:20:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:35,944 INFO L93 Difference]: Finished difference Result 547 states and 830 transitions. [2025-02-06 02:20:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 02:20:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) Word has length 296 [2025-02-06 02:20:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:35,948 INFO L225 Difference]: With dead ends: 547 [2025-02-06 02:20:35,948 INFO L226 Difference]: Without dead ends: 329 [2025-02-06 02:20:35,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 585 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812 [2025-02-06 02:20:35,952 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 962 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:35,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 821 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:20:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-02-06 02:20:36,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 325. [2025-02-06 02:20:36,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 228 states have (on average 1.3508771929824561) internal successors, (308), 228 states have internal predecessors, (308), 86 states have call successors, (86), 10 states have call predecessors, (86), 10 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-06 02:20:36,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 480 transitions. [2025-02-06 02:20:36,006 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 480 transitions. Word has length 296 [2025-02-06 02:20:36,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:36,007 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 480 transitions. [2025-02-06 02:20:36,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 5 states have call successors, (124), 3 states have call predecessors, (124), 7 states have return successors, (125), 5 states have call predecessors, (125), 5 states have call successors, (125) [2025-02-06 02:20:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 480 transitions. [2025-02-06 02:20:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2025-02-06 02:20:36,013 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:36,013 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:36,023 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 02:20:36,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:36,214 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:36,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:36,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1635658147, now seen corresponding path program 1 times [2025-02-06 02:20:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221155048] [2025-02-06 02:20:36,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:36,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-02-06 02:20:36,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-02-06 02:20:36,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:36,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-02-06 02:20:37,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:37,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221155048] [2025-02-06 02:20:37,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221155048] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:20:37,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346680924] [2025-02-06 02:20:37,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:37,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:37,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:37,081 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 02:20:37,084 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 02:20:37,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-02-06 02:20:37,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-02-06 02:20:37,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:37,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:37,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:20:37,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:20:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 366 proven. 120 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2025-02-06 02:20:37,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:20:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2025-02-06 02:20:38,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346680924] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:20:38,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:20:38,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-06 02:20:38,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128866091] [2025-02-06 02:20:38,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:20:38,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 02:20:38,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:38,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 02:20:38,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:20:38,209 INFO L87 Difference]: Start difference. First operand 325 states and 480 transitions. Second operand has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2025-02-06 02:20:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:38,581 INFO L93 Difference]: Finished difference Result 567 states and 837 transitions. [2025-02-06 02:20:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:20:38,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) Word has length 297 [2025-02-06 02:20:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:38,586 INFO L225 Difference]: With dead ends: 567 [2025-02-06 02:20:38,586 INFO L226 Difference]: Without dead ends: 337 [2025-02-06 02:20:38,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2025-02-06 02:20:38,587 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 341 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:38,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 581 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:20:38,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-02-06 02:20:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 333. [2025-02-06 02:20:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 234 states have (on average 1.3376068376068375) internal successors, (313), 234 states have internal predecessors, (313), 86 states have call successors, (86), 12 states have call predecessors, (86), 12 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-02-06 02:20:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 485 transitions. [2025-02-06 02:20:38,648 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 485 transitions. Word has length 297 [2025-02-06 02:20:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:38,649 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 485 transitions. [2025-02-06 02:20:38,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 9 states have internal predecessors, (148), 4 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (125), 4 states have call predecessors, (125), 4 states have call successors, (125) [2025-02-06 02:20:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 485 transitions. [2025-02-06 02:20:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2025-02-06 02:20:38,655 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:38,656 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:38,665 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 02:20:38,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:38,857 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:38,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1395118018, now seen corresponding path program 1 times [2025-02-06 02:20:38,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:38,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783471524] [2025-02-06 02:20:38,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:38,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:38,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 297 statements into 1 equivalence classes. [2025-02-06 02:20:38,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 297 of 297 statements. [2025-02-06 02:20:38,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:38,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2025-02-06 02:20:39,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783471524] [2025-02-06 02:20:39,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783471524] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:20:39,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:20:39,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:20:39,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820433864] [2025-02-06 02:20:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:20:39,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:20:39,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:39,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:20:39,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:20:39,092 INFO L87 Difference]: Start difference. First operand 333 states and 485 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:39,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:39,232 INFO L93 Difference]: Finished difference Result 801 states and 1183 transitions. [2025-02-06 02:20:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:20:39,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 297 [2025-02-06 02:20:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:39,239 INFO L225 Difference]: With dead ends: 801 [2025-02-06 02:20:39,239 INFO L226 Difference]: Without dead ends: 567 [2025-02-06 02:20:39,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:20:39,240 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 199 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:39,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 796 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:20:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2025-02-06 02:20:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 565. [2025-02-06 02:20:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 417 states have (on average 1.3741007194244603) internal successors, (573), 417 states have internal predecessors, (573), 129 states have call successors, (129), 18 states have call predecessors, (129), 18 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2025-02-06 02:20:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 831 transitions. [2025-02-06 02:20:39,335 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 831 transitions. Word has length 297 [2025-02-06 02:20:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:39,337 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 831 transitions. [2025-02-06 02:20:39,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-02-06 02:20:39,338 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 831 transitions. [2025-02-06 02:20:39,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2025-02-06 02:20:39,343 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:39,343 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:39,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:20:39,345 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:39,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1856911793, now seen corresponding path program 1 times [2025-02-06 02:20:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:39,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000711134] [2025-02-06 02:20:39,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:39,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-02-06 02:20:39,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-02-06 02:20:39,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:39,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 204 proven. 366 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2025-02-06 02:20:41,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:20:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000711134] [2025-02-06 02:20:41,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000711134] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:20:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225797134] [2025-02-06 02:20:41,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:41,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:41,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:41,534 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 02:20:41,536 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 02:20:41,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-02-06 02:20:41,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-02-06 02:20:41,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:41,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:20:41,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 02:20:41,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:20:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2227 proven. 612 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2025-02-06 02:20:46,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:20:49,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225797134] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:20:49,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 02:20:49,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 28] total 40 [2025-02-06 02:20:49,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010256155] [2025-02-06 02:20:49,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 02:20:49,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-02-06 02:20:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:20:49,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-02-06 02:20:49,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=2709, Unknown=0, NotChecked=0, Total=3422 [2025-02-06 02:20:49,624 INFO L87 Difference]: Start difference. First operand 565 states and 831 transitions. Second operand has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) [2025-02-06 02:20:52,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:20:52,318 INFO L93 Difference]: Finished difference Result 1242 states and 1787 transitions. [2025-02-06 02:20:52,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-02-06 02:20:52,319 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) Word has length 298 [2025-02-06 02:20:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:20:52,325 INFO L225 Difference]: With dead ends: 1242 [2025-02-06 02:20:52,325 INFO L226 Difference]: Without dead ends: 776 [2025-02-06 02:20:52,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1198, Invalid=3914, Unknown=0, NotChecked=0, Total=5112 [2025-02-06 02:20:52,329 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1706 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:20:52,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 3096 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 02:20:52,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2025-02-06 02:20:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 690. [2025-02-06 02:20:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 524 states have (on average 1.3530534351145038) internal successors, (709), 524 states have internal predecessors, (709), 129 states have call successors, (129), 36 states have call predecessors, (129), 36 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2025-02-06 02:20:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 967 transitions. [2025-02-06 02:20:52,410 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 967 transitions. Word has length 298 [2025-02-06 02:20:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:20:52,412 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 967 transitions. [2025-02-06 02:20:52,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 4.7894736842105265) internal successors, (182), 35 states have internal predecessors, (182), 16 states have call successors, (86), 10 states have call predecessors, (86), 15 states have return successors, (86), 15 states have call predecessors, (86), 16 states have call successors, (86) [2025-02-06 02:20:52,413 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 967 transitions. [2025-02-06 02:20:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2025-02-06 02:20:52,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:20:52,417 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:20:52,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 02:20:52,621 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,SelfDestructingSolverStorable7 [2025-02-06 02:20:52,622 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:20:52,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:20:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash -108201111, now seen corresponding path program 1 times [2025-02-06 02:20:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:20:52,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664715914] [2025-02-06 02:20:52,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:20:52,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-02-06 02:20:53,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-02-06 02:20:53,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:20:53,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 02:20:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495304810] [2025-02-06 02:20:53,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:20:53,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:20:53,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:20:53,116 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 02:20:53,119 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 02:20:53,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes. [2025-02-06 02:21:31,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 298 of 298 statements. [2025-02-06 02:21:31,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:21:31,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 02:21:31,851 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 02:21:31,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 298 statements into 1 equivalence classes.