./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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/float-benchs/zonotope_3.c.p+cfa-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f57f8b833105028fdf95b78a3cf338388755f00064f1be1e7a158d1da7dbd5a2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:57:39,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:57:39,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:57:39,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:57:39,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:57:39,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:57:39,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:57:39,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:57:39,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:57:39,810 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:57:39,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:57:39,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:57:39,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:57:39,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:57:39,811 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:57:39,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:57:39,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:57:39,812 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:57:39,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:57:39,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:57:39,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:57:39,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:57:39,813 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 -> f57f8b833105028fdf95b78a3cf338388755f00064f1be1e7a158d1da7dbd5a2 [2025-01-09 00:57:40,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:57:40,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:57:40,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:57:40,059 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:57:40,059 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:57:40,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c [2025-01-09 00:57:41,304 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a36dc375/8c5f72050f4d4ba697a3f40b04a03bcc/FLAGb3fc1aa00 [2025-01-09 00:57:41,585 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:57:41,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_3.c.p+cfa-reducer.c [2025-01-09 00:57:41,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a36dc375/8c5f72050f4d4ba697a3f40b04a03bcc/FLAGb3fc1aa00 [2025-01-09 00:57:41,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6a36dc375/8c5f72050f4d4ba697a3f40b04a03bcc [2025-01-09 00:57:41,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:57:41,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:57:41,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:57:41,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:57:41,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:57:41,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3702a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41, skipping insertion in model container [2025-01-09 00:57:41,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:57:41,777 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/float-benchs/zonotope_3.c.p+cfa-reducer.c[2717,2730] [2025-01-09 00:57:41,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:57:41,791 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:57:41,810 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/float-benchs/zonotope_3.c.p+cfa-reducer.c[2717,2730] [2025-01-09 00:57:41,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:57:41,822 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:57:41,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41 WrapperNode [2025-01-09 00:57:41,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:57:41,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:57:41,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:57:41,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:57:41,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,846 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 126 [2025-01-09 00:57:41,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:57:41,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:57:41,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:57:41,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:57:41,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,864 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]. [2025-01-09 00:57:41,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,870 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:57:41,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:57:41,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:57:41,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:57:41,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (1/1) ... [2025-01-09 00:57:41,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:57:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:41,911 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) [2025-01-09 00:57:41,914 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 [2025-01-09 00:57:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:57:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:57:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:57:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:57:42,013 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:57:42,014 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:57:42,131 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2025-01-09 00:57:42,132 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:57:42,137 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:57:42,137 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:57:42,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:57:42 BoogieIcfgContainer [2025-01-09 00:57:42,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:57:42,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:57:42,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:57:42,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:57:42,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:57:41" (1/3) ... [2025-01-09 00:57:42,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:57:42, skipping insertion in model container [2025-01-09 00:57:42,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:57:41" (2/3) ... [2025-01-09 00:57:42,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:57:42, skipping insertion in model container [2025-01-09 00:57:42,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:57:42" (3/3) ... [2025-01-09 00:57:42,143 INFO L128 eAbstractionObserver]: Analyzing ICFG zonotope_3.c.p+cfa-reducer.c [2025-01-09 00:57:42,152 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:57:42,152 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG zonotope_3.c.p+cfa-reducer.c that has 1 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:57:42,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:57:42,188 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;@24742c04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:57:42,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:57:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 00:57:42,195 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:42,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:42,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:42,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:42,201 INFO L85 PathProgramCache]: Analyzing trace with hash 739680105, now seen corresponding path program 1 times [2025-01-09 00:57:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:42,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011984499] [2025-01-09 00:57:42,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:42,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:42,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 00:57:42,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 00:57:42,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:42,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011984499] [2025-01-09 00:57:42,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011984499] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:57:42,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:57:42,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 00:57:42,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622484451] [2025-01-09 00:57:42,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:57:42,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 00:57:42,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:42,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 00:57:42,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:57:42,358 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:42,377 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2025-01-09 00:57:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 00:57:42,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-09 00:57:42,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:42,382 INFO L225 Difference]: With dead ends: 33 [2025-01-09 00:57:42,382 INFO L226 Difference]: Without dead ends: 19 [2025-01-09 00:57:42,384 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 [2025-01-09 00:57:42,386 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:42,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 37 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-01-09 00:57:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2025-01-09 00:57:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2025-01-09 00:57:42,405 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 8 [2025-01-09 00:57:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:42,405 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2025-01-09 00:57:42,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2025-01-09 00:57:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 00:57:42,406 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:42,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:42,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:57:42,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:42,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash 573752309, now seen corresponding path program 1 times [2025-01-09 00:57:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273765016] [2025-01-09 00:57:42,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:42,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:42,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 00:57:42,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 00:57:42,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:42,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:42,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:42,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273765016] [2025-01-09 00:57:42,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273765016] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:57:42,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:57:42,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 00:57:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519795319] [2025-01-09 00:57:42,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:57:42,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 00:57:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:42,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 00:57:42,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:57:42,444 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:42,450 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2025-01-09 00:57:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 00:57:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-01-09 00:57:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:42,451 INFO L225 Difference]: With dead ends: 28 [2025-01-09 00:57:42,451 INFO L226 Difference]: Without dead ends: 14 [2025-01-09 00:57:42,451 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 [2025-01-09 00:57:42,452 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:42,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:42,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-09 00:57:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-01-09 00:57:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-01-09 00:57:42,454 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2025-01-09 00:57:42,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:42,454 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-01-09 00:57:42,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-01-09 00:57:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 00:57:42,454 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:42,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:42,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 00:57:42,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:42,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1667531312, now seen corresponding path program 1 times [2025-01-09 00:57:42,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:42,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262543235] [2025-01-09 00:57:42,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:42,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:42,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 00:57:42,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 00:57:42,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:42,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:42,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262543235] [2025-01-09 00:57:42,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262543235] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:42,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124918971] [2025-01-09 00:57:42,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:42,519 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) [2025-01-09 00:57:42,520 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 [2025-01-09 00:57:42,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 00:57:42,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 00:57:42,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:42,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:42,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 00:57:42,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:42,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:57:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:42,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124918971] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:57:42,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:57:42,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-01-09 00:57:42,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278910585] [2025-01-09 00:57:42,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:57:42,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 00:57:42,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:42,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 00:57:42,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:57:42,679 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:42,710 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2025-01-09 00:57:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 00:57:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-01-09 00:57:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:42,711 INFO L225 Difference]: With dead ends: 33 [2025-01-09 00:57:42,711 INFO L226 Difference]: Without dead ends: 26 [2025-01-09 00:57:42,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:57:42,712 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:42,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-01-09 00:57:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-01-09 00:57:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2025-01-09 00:57:42,718 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 12 [2025-01-09 00:57:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:42,718 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2025-01-09 00:57:42,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2025-01-09 00:57:42,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 00:57:42,718 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:42,718 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:42,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 00:57:42,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:42,919 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:42,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1396128379, now seen corresponding path program 2 times [2025-01-09 00:57:42,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:42,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710837324] [2025-01-09 00:57:42,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 00:57:42,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:42,947 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-09 00:57:42,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 24 statements. [2025-01-09 00:57:42,960 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 00:57:42,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 00:57:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:43,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710837324] [2025-01-09 00:57:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710837324] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:57:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:57:43,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 00:57:43,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737001146] [2025-01-09 00:57:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:57:43,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 00:57:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:43,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 00:57:43,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 00:57:43,037 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:43,046 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2025-01-09 00:57:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 00:57:43,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-01-09 00:57:43,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:43,048 INFO L225 Difference]: With dead ends: 30 [2025-01-09 00:57:43,049 INFO L226 Difference]: Without dead ends: 26 [2025-01-09 00:57:43,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 00:57:43,050 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 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 [2025-01-09 00:57:43,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-01-09 00:57:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-01-09 00:57:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2025-01-09 00:57:43,056 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2025-01-09 00:57:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:43,056 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2025-01-09 00:57:43,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2025-01-09 00:57:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 00:57:43,057 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:43,057 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:43,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 00:57:43,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1379117718, now seen corresponding path program 1 times [2025-01-09 00:57:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057277969] [2025-01-09 00:57:43,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:43,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 00:57:43,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 00:57:43,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:43,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:43,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057277969] [2025-01-09 00:57:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057277969] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981746473] [2025-01-09 00:57:43,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:57:43,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:43,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:43,238 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) [2025-01-09 00:57:43,241 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 [2025-01-09 00:57:43,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 00:57:43,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 00:57:43,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:57:43,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:43,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 00:57:43,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:43,373 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:43,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:57:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:43,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981746473] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:57:43,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:57:43,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-09 00:57:43,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835070019] [2025-01-09 00:57:43,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:57:43,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 00:57:43,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:43,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 00:57:43,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-09 00:57:43,455 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:43,492 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2025-01-09 00:57:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 00:57:43,493 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-01-09 00:57:43,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:43,493 INFO L225 Difference]: With dead ends: 57 [2025-01-09 00:57:43,496 INFO L226 Difference]: Without dead ends: 50 [2025-01-09 00:57:43,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-09 00:57:43,497 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:43,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:43,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-01-09 00:57:43,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-01-09 00:57:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 49 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2025-01-09 00:57:43,500 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 24 [2025-01-09 00:57:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:43,500 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2025-01-09 00:57:43,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2025-01-09 00:57:43,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-09 00:57:43,501 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:43,502 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:43,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 00:57:43,702 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 [2025-01-09 00:57:43,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:43,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:43,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1660556692, now seen corresponding path program 2 times [2025-01-09 00:57:43,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:43,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615505018] [2025-01-09 00:57:43,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 00:57:43,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:43,731 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-01-09 00:57:43,745 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 00:57:43,745 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 00:57:43,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:43,983 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:43,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:43,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615505018] [2025-01-09 00:57:43,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615505018] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:43,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283808396] [2025-01-09 00:57:43,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 00:57:43,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:43,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:43,986 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) [2025-01-09 00:57:43,987 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 [2025-01-09 00:57:44,048 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-01-09 00:57:44,083 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 00:57:44,084 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 00:57:44,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:44,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 00:57:44,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:44,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:57:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283808396] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:57:44,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:57:44,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-01-09 00:57:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333730796] [2025-01-09 00:57:44,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:57:44,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 00:57:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:44,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 00:57:44,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-01-09 00:57:44,356 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:44,410 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2025-01-09 00:57:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-09 00:57:44,410 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-01-09 00:57:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:44,411 INFO L225 Difference]: With dead ends: 105 [2025-01-09 00:57:44,411 INFO L226 Difference]: Without dead ends: 98 [2025-01-09 00:57:44,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-01-09 00:57:44,412 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:44,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 104 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:57:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-01-09 00:57:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2025-01-09 00:57:44,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 97 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2025-01-09 00:57:44,416 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 48 [2025-01-09 00:57:44,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:44,416 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2025-01-09 00:57:44,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2025-01-09 00:57:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 00:57:44,418 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:44,418 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:44,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 00:57:44,622 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 [2025-01-09 00:57:44,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:44,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1914010600, now seen corresponding path program 3 times [2025-01-09 00:57:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:44,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533513397] [2025-01-09 00:57:44,623 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 00:57:44,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:44,653 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 96 statements into 23 equivalence classes. [2025-01-09 00:57:44,680 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 00:57:44,680 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2025-01-09 00:57:44,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533513397] [2025-01-09 00:57:45,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533513397] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109824169] [2025-01-09 00:57:45,257 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 00:57:45,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:45,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:45,259 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) [2025-01-09 00:57:45,263 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 [2025-01-09 00:57:45,365 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 96 statements into 23 equivalence classes. [2025-01-09 00:57:45,450 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 00:57:45,451 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2025-01-09 00:57:45,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:45,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-09 00:57:45,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:45,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:57:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:46,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109824169] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:57:46,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:57:46,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2025-01-09 00:57:46,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672029338] [2025-01-09 00:57:46,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:57:46,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-01-09 00:57:46,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:46,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-01-09 00:57:46,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2025-01-09 00:57:46,372 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:46,479 INFO L93 Difference]: Finished difference Result 201 states and 226 transitions. [2025-01-09 00:57:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-09 00:57:46,479 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2025-01-09 00:57:46,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:46,480 INFO L225 Difference]: With dead ends: 201 [2025-01-09 00:57:46,481 INFO L226 Difference]: Without dead ends: 194 [2025-01-09 00:57:46,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2025-01-09 00:57:46,483 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:46,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 00:57:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2025-01-09 00:57:46,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2025-01-09 00:57:46,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.0103626943005182) internal successors, (195), 193 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2025-01-09 00:57:46,491 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 96 [2025-01-09 00:57:46,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:46,491 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2025-01-09 00:57:46,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.8979591836734695) internal successors, (191), 49 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2025-01-09 00:57:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-01-09 00:57:46,493 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:46,493 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:46,500 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 [2025-01-09 00:57:46,697 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,SelfDestructingSolverStorable6 [2025-01-09 00:57:46,697 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:46,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:46,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1650204528, now seen corresponding path program 4 times [2025-01-09 00:57:46,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:46,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131989936] [2025-01-09 00:57:46,697 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 00:57:46,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:46,759 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 192 statements into 2 equivalence classes. [2025-01-09 00:57:46,780 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 00:57:46,782 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 00:57:46,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:48,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:48,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131989936] [2025-01-09 00:57:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131989936] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:48,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347597215] [2025-01-09 00:57:48,468 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 00:57:48,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:48,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:48,470 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) [2025-01-09 00:57:48,475 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 [2025-01-09 00:57:48,644 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 192 statements into 2 equivalence classes. [2025-01-09 00:57:48,774 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 00:57:48,774 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 00:57:48,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:48,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-09 00:57:48,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:48,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:57:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:51,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347597215] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:57:51,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:57:51,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2025-01-09 00:57:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291660067] [2025-01-09 00:57:51,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:57:51,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-01-09 00:57:51,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:57:51,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-01-09 00:57:51,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-09 00:57:51,175 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:51,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:57:51,440 INFO L93 Difference]: Finished difference Result 393 states and 442 transitions. [2025-01-09 00:57:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-01-09 00:57:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2025-01-09 00:57:51,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:57:51,444 INFO L225 Difference]: With dead ends: 393 [2025-01-09 00:57:51,444 INFO L226 Difference]: Without dead ends: 386 [2025-01-09 00:57:51,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-09 00:57:51,446 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 00:57:51,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 246 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 00:57:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-01-09 00:57:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2025-01-09 00:57:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.0051948051948052) internal successors, (387), 385 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2025-01-09 00:57:51,457 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 192 [2025-01-09 00:57:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:57:51,457 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2025-01-09 00:57:51,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:57:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2025-01-09 00:57:51,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2025-01-09 00:57:51,460 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:57:51,461 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:57:51,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 00:57:51,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:51,661 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:57:51,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:57:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash 215943648, now seen corresponding path program 5 times [2025-01-09 00:57:51,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:57:51,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160988219] [2025-01-09 00:57:51,662 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 00:57:51,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:57:51,755 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 384 statements into 95 equivalence classes. [2025-01-09 00:57:51,896 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) and asserted 384 of 384 statements. [2025-01-09 00:57:51,896 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2025-01-09 00:57:51,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:57,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:57:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160988219] [2025-01-09 00:57:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160988219] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:57:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239551215] [2025-01-09 00:57:57,101 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 00:57:57,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:57:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:57:57,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 00:57:57,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 00:57:57,467 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 384 statements into 95 equivalence classes. [2025-01-09 00:57:58,044 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) and asserted 384 of 384 statements. [2025-01-09 00:57:58,044 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2025-01-09 00:57:58,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:57:58,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 3084 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-01-09 00:57:58,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:57:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:57:58,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:58:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:58:07,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239551215] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:58:07,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:58:07,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 192 [2025-01-09 00:58:07,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720471837] [2025-01-09 00:58:07,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:58:07,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-01-09 00:58:07,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:58:07,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-01-09 00:58:07,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-01-09 00:58:07,372 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:58:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:58:08,271 INFO L93 Difference]: Finished difference Result 777 states and 874 transitions. [2025-01-09 00:58:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-01-09 00:58:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2025-01-09 00:58:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:58:08,278 INFO L225 Difference]: With dead ends: 777 [2025-01-09 00:58:08,278 INFO L226 Difference]: Without dead ends: 770 [2025-01-09 00:58:08,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-01-09 00:58:08,288 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 00:58:08,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 414 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 00:58:08,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2025-01-09 00:58:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2025-01-09 00:58:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.0026007802340702) internal successors, (771), 769 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:58:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 771 transitions. [2025-01-09 00:58:08,310 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 771 transitions. Word has length 384 [2025-01-09 00:58:08,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:58:08,311 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 771 transitions. [2025-01-09 00:58:08,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 3.96875) internal successors, (762), 192 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:58:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 771 transitions. [2025-01-09 00:58:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2025-01-09 00:58:08,320 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:58:08,320 INFO L218 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:58:08,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 00:58:08,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-09 00:58:08,525 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:58:08,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:58:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1640946816, now seen corresponding path program 6 times [2025-01-09 00:58:08,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:58:08,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896292735] [2025-01-09 00:58:08,526 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 00:58:08,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:58:08,679 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 768 statements into 191 equivalence classes. [2025-01-09 00:58:08,834 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) and asserted 768 of 768 statements. [2025-01-09 00:58:08,834 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) [2025-01-09 00:58:08,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:58:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:58:29,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:58:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896292735] [2025-01-09 00:58:29,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896292735] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:58:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149266363] [2025-01-09 00:58:29,758 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 00:58:29,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:58:29,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:58:29,760 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 00:58:29,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 00:58:30,350 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 768 statements into 191 equivalence classes. [2025-01-09 00:58:31,905 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) and asserted 768 of 768 statements. [2025-01-09 00:58:31,906 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 191 check-sat command(s) [2025-01-09 00:58:31,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:58:31,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 6156 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-01-09 00:58:31,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:58:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:58:32,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:59:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:59:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149266363] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:59:04,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:59:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 385 [2025-01-09 00:59:04,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730215643] [2025-01-09 00:59:04,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:59:04,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 385 states [2025-01-09 00:59:04,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:59:04,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 385 interpolants. [2025-01-09 00:59:04,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73920, Invalid=73920, Unknown=0, NotChecked=0, Total=147840 [2025-01-09 00:59:04,463 INFO L87 Difference]: Start difference. First operand 770 states and 771 transitions. Second operand has 385 states, 385 states have (on average 3.987012987012987) internal successors, (1535), 385 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:59:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:59:09,420 INFO L93 Difference]: Finished difference Result 1545 states and 1738 transitions. [2025-01-09 00:59:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2025-01-09 00:59:09,421 INFO L78 Accepts]: Start accepts. Automaton has has 385 states, 385 states have (on average 3.987012987012987) internal successors, (1535), 385 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 768 [2025-01-09 00:59:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:59:09,432 INFO L225 Difference]: With dead ends: 1545 [2025-01-09 00:59:09,433 INFO L226 Difference]: Without dead ends: 1538 [2025-01-09 00:59:09,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1727 GetRequests, 1344 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=73920, Invalid=73920, Unknown=0, NotChecked=0, Total=147840 [2025-01-09 00:59:09,442 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 00:59:09,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 830 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 00:59:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2025-01-09 00:59:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1538. [2025-01-09 00:59:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1537 states have (on average 1.0013012361743656) internal successors, (1539), 1537 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:59:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 1539 transitions. [2025-01-09 00:59:09,464 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 1539 transitions. Word has length 768 [2025-01-09 00:59:09,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:59:09,466 INFO L471 AbstractCegarLoop]: Abstraction has 1538 states and 1539 transitions. [2025-01-09 00:59:09,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 385 states, 385 states have (on average 3.987012987012987) internal successors, (1535), 385 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:59:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 1539 transitions. [2025-01-09 00:59:09,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2025-01-09 00:59:09,493 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:59:09,494 INFO L218 NwaCegarLoop]: trace histogram [382, 382, 382, 382, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:59:09,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 00:59:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:59:09,699 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:59:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:59:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1785429568, now seen corresponding path program 7 times [2025-01-09 00:59:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:59:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090937252] [2025-01-09 00:59:09,701 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 00:59:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:59:10,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1536 statements into 1 equivalence classes. [2025-01-09 00:59:10,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1536 of 1536 statements. [2025-01-09 00:59:10,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:59:10,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat