./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound10.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/nla-digbench-scaling/prodbin-ll_unwindbound10.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 b4ff78c7a05ff12ed3c4b9587e1e659860187fd62fb9ac015e2b63b391c38f88 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:35:35,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:35:35,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:35:35,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:35:35,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:35:35,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:35:35,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:35:35,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:35:35,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:35:35,836 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:35:35,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:35:35,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:35:35,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:35:35,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:35:35,838 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:35:35,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:35:35,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:35:35,838 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:35:35,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:35:35,839 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:35:35,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:35:35,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:35:35,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:35:35,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:35:35,840 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 -> b4ff78c7a05ff12ed3c4b9587e1e659860187fd62fb9ac015e2b63b391c38f88 [2025-01-09 03:35:36,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:35:36,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:35:36,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:35:36,127 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:35:36,127 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:35:36,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound10.c [2025-01-09 03:35:37,443 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00d68805f/12a6e40fc26142af8cee118876792241/FLAG09fe050b4 [2025-01-09 03:35:37,710 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:35:37,711 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound10.c [2025-01-09 03:35:37,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00d68805f/12a6e40fc26142af8cee118876792241/FLAG09fe050b4 [2025-01-09 03:35:37,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00d68805f/12a6e40fc26142af8cee118876792241 [2025-01-09 03:35:37,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:35:37,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:35:37,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:35:37,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:35:37,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:35:37,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:37,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36234b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37, skipping insertion in model container [2025-01-09 03:35:37,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:37,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:35:37,903 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/nla-digbench-scaling/prodbin-ll_unwindbound10.c[1175,1188] [2025-01-09 03:35:37,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:35:37,929 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:35:37,942 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/nla-digbench-scaling/prodbin-ll_unwindbound10.c[1175,1188] [2025-01-09 03:35:37,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:35:37,960 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:35:37,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37 WrapperNode [2025-01-09 03:35:37,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:35:37,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:35:37,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:35:37,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:35:37,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:37,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:37,989 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2025-01-09 03:35:37,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:35:37,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:35:37,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:35:37,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:35:37,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:37,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,007 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 03:35:38,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,009 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:35:38,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:35:38,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:35:38,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:35:38,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (1/1) ... [2025-01-09 03:35:38,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:35:38,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:38,044 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 03:35:38,046 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 03:35:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:35:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:35:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:35:38,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:35:38,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 03:35:38,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 03:35:38,119 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:35:38,121 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:35:38,262 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-01-09 03:35:38,262 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:35:38,273 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:35:38,273 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:35:38,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:35:38 BoogieIcfgContainer [2025-01-09 03:35:38,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:35:38,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:35:38,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:35:38,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:35:38,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:35:37" (1/3) ... [2025-01-09 03:35:38,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622250e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:35:38, skipping insertion in model container [2025-01-09 03:35:38,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:35:37" (2/3) ... [2025-01-09 03:35:38,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3622250e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:35:38, skipping insertion in model container [2025-01-09 03:35:38,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:35:38" (3/3) ... [2025-01-09 03:35:38,289 INFO L128 eAbstractionObserver]: Analyzing ICFG prodbin-ll_unwindbound10.c [2025-01-09 03:35:38,304 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:35:38,306 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_unwindbound10.c that has 2 procedures, 21 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:35:38,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:35:38,371 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;@7fb8d0cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:35:38,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:35:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:38,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 03:35:38,381 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:38,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:38,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:38,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash -572597424, now seen corresponding path program 1 times [2025-01-09 03:35:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:38,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286275479] [2025-01-09 03:35:38,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:38,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 03:35:38,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 03:35:38,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:38,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:38,519 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 03:35:38,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:38,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286275479] [2025-01-09 03:35:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286275479] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:35:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:35:38,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 03:35:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286213881] [2025-01-09 03:35:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:35:38,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:35:38,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:38,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:35:38,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:35:38,544 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:38,554 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2025-01-09 03:35:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:35:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 03:35:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:38,559 INFO L225 Difference]: With dead ends: 39 [2025-01-09 03:35:38,559 INFO L226 Difference]: Without dead ends: 17 [2025-01-09 03:35:38,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:35:38,565 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:38,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:35:38,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-01-09 03:35:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-01-09 03:35:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:35:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2025-01-09 03:35:38,593 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2025-01-09 03:35:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:38,593 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2025-01-09 03:35:38,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:38,593 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2025-01-09 03:35:38,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 03:35:38,594 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:38,594 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:38,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 03:35:38,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:38,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2015978753, now seen corresponding path program 1 times [2025-01-09 03:35:38,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:38,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505472892] [2025-01-09 03:35:38,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:38,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 03:35:38,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 03:35:38,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:38,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:38,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811495543] [2025-01-09 03:35:38,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:38,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:38,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:38,631 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 03:35:38,632 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 03:35:38,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 03:35:38,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 03:35:38,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:38,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:38,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:35:38,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:38,847 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 03:35:38,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:35:38,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505472892] [2025-01-09 03:35:38,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:35:38,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811495543] [2025-01-09 03:35:38,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811495543] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:35:38,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:35:38,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:35:38,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487344364] [2025-01-09 03:35:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:35:38,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:35:38,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:38,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:35:38,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:35:38,853 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:38,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:38,925 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2025-01-09 03:35:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:35:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 03:35:38,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:38,926 INFO L225 Difference]: With dead ends: 30 [2025-01-09 03:35:38,926 INFO L226 Difference]: Without dead ends: 28 [2025-01-09 03:35:38,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:35:38,927 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:38,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:35:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-01-09 03:35:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2025-01-09 03:35:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2025-01-09 03:35:38,938 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 10 [2025-01-09 03:35:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:38,939 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2025-01-09 03:35:38,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2025-01-09 03:35:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 03:35:38,940 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:38,940 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:38,948 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 03:35:39,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:39,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:39,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2014072129, now seen corresponding path program 1 times [2025-01-09 03:35:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:39,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875211281] [2025-01-09 03:35:39,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:39,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:39,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 03:35:39,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 03:35:39,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:39,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:39,239 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 03:35:39,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875211281] [2025-01-09 03:35:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875211281] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:35:39,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:35:39,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:35:39,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123847789] [2025-01-09 03:35:39,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:35:39,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:35:39,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:39,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:35:39,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:35:39,241 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:39,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:39,255 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2025-01-09 03:35:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:35:39,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 03:35:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:39,257 INFO L225 Difference]: With dead ends: 31 [2025-01-09 03:35:39,258 INFO L226 Difference]: Without dead ends: 24 [2025-01-09 03:35:39,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 03:35:39,259 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 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 03:35:39,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:35:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-09 03:35:39,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-01-09 03:35:39,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-01-09 03:35:39,271 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2025-01-09 03:35:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:39,271 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-01-09 03:35:39,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:35:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-01-09 03:35:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-09 03:35:39,272 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:39,272 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:39,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 03:35:39,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:39,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1812154710, now seen corresponding path program 1 times [2025-01-09 03:35:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:39,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036716158] [2025-01-09 03:35:39,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:39,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 03:35:39,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 03:35:39,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:39,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:39,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:39,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036716158] [2025-01-09 03:35:39,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036716158] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:35:39,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:35:39,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:35:39,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099898250] [2025-01-09 03:35:39,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:35:39,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:35:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:39,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:35:39,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:35:39,421 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:35:39,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:39,457 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2025-01-09 03:35:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:35:39,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-01-09 03:35:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:39,458 INFO L225 Difference]: With dead ends: 34 [2025-01-09 03:35:39,459 INFO L226 Difference]: Without dead ends: 27 [2025-01-09 03:35:39,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:35:39,460 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:39,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:35:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-01-09 03:35:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2025-01-09 03:35:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-01-09 03:35:39,468 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2025-01-09 03:35:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:39,468 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-01-09 03:35:39,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:35:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-01-09 03:35:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-09 03:35:39,469 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:39,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:39,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 03:35:39,470 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:39,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1158688449, now seen corresponding path program 1 times [2025-01-09 03:35:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:39,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155821079] [2025-01-09 03:35:39,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:39,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:39,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:39,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:39,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:39,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:39,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134111990] [2025-01-09 03:35:39,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:39,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:39,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:39,518 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 03:35:39,522 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 03:35:39,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:39,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:39,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:39,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:39,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-09 03:35:39,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:39,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:41,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:41,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155821079] [2025-01-09 03:35:41,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:35:41,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134111990] [2025-01-09 03:35:41,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134111990] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 03:35:41,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:35:41,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2025-01-09 03:35:41,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680438906] [2025-01-09 03:35:41,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:35:41,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:35:41,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:41,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:35:41,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:35:41,502 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:35:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:41,638 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2025-01-09 03:35:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:35:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2025-01-09 03:35:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:41,642 INFO L225 Difference]: With dead ends: 39 [2025-01-09 03:35:41,642 INFO L226 Difference]: Without dead ends: 37 [2025-01-09 03:35:41,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:35:41,643 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:41,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 66 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:35:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-01-09 03:35:41,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2025-01-09 03:35:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 03:35:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2025-01-09 03:35:41,653 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 20 [2025-01-09 03:35:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:41,653 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2025-01-09 03:35:41,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:35:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2025-01-09 03:35:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-09 03:35:41,655 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:41,656 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:41,663 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 03:35:41,859 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 03:35:41,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:41,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:41,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1160595073, now seen corresponding path program 1 times [2025-01-09 03:35:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:41,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333048184] [2025-01-09 03:35:41,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:41,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:41,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:41,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:41,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:41,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:41,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333048184] [2025-01-09 03:35:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333048184] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:35:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61000893] [2025-01-09 03:35:41,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:41,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:41,980 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 03:35:41,982 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 03:35:42,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:42,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:42,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:42,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:42,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:35:42,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:42,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:42,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61000893] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:35:42,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:35:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 8 [2025-01-09 03:35:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972927426] [2025-01-09 03:35:42,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:35:42,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:35:42,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:42,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:35:42,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:35:42,105 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 03:35:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:42,184 INFO L93 Difference]: Finished difference Result 95 states and 115 transitions. [2025-01-09 03:35:42,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:35:42,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-01-09 03:35:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:42,186 INFO L225 Difference]: With dead ends: 95 [2025-01-09 03:35:42,186 INFO L226 Difference]: Without dead ends: 88 [2025-01-09 03:35:42,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:35:42,187 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:42,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 76 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:35:42,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-01-09 03:35:42,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2025-01-09 03:35:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 69 states have internal predecessors, (84), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 03:35:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2025-01-09 03:35:42,211 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 20 [2025-01-09 03:35:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:42,211 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2025-01-09 03:35:42,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 03:35:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2025-01-09 03:35:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-09 03:35:42,213 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:42,213 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:42,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:35:42,417 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 03:35:42,417 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:42,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:42,417 INFO L85 PathProgramCache]: Analyzing trace with hash 349341823, now seen corresponding path program 1 times [2025-01-09 03:35:42,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:42,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933265854] [2025-01-09 03:35:42,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:42,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:42,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:42,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:42,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:42,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951198203] [2025-01-09 03:35:42,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:42,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:42,442 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 03:35:42,444 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 03:35:42,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 03:35:42,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 03:35:42,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:42,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:42,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-09 03:35:42,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:42,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:43,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:43,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933265854] [2025-01-09 03:35:43,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:35:43,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951198203] [2025-01-09 03:35:43,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951198203] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:35:43,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:35:43,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2025-01-09 03:35:43,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104320104] [2025-01-09 03:35:43,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 03:35:43,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 03:35:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:43,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 03:35:43,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:35:43,205 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:43,546 INFO L93 Difference]: Finished difference Result 127 states and 153 transitions. [2025-01-09 03:35:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 03:35:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2025-01-09 03:35:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:43,550 INFO L225 Difference]: With dead ends: 127 [2025-01-09 03:35:43,550 INFO L226 Difference]: Without dead ends: 118 [2025-01-09 03:35:43,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2025-01-09 03:35:43,551 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:43,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 99 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:35:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-01-09 03:35:43,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2025-01-09 03:35:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 82 states have internal predecessors, (97), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 03:35:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2025-01-09 03:35:43,580 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 20 [2025-01-09 03:35:43,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:43,581 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2025-01-09 03:35:43,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:35:43,581 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2025-01-09 03:35:43,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-09 03:35:43,582 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:43,582 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:43,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:35:43,782 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 03:35:43,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:43,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:43,783 INFO L85 PathProgramCache]: Analyzing trace with hash -453278824, now seen corresponding path program 1 times [2025-01-09 03:35:43,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:43,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829883795] [2025-01-09 03:35:43,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:43,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:43,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 03:35:43,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 03:35:43,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:43,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:43,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52254629] [2025-01-09 03:35:43,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:43,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:43,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:43,804 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 03:35:43,806 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 03:35:43,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 03:35:43,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 03:35:43,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:43,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:43,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 03:35:43,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:35:43,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:35:43,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:43,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829883795] [2025-01-09 03:35:43,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:35:43,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52254629] [2025-01-09 03:35:43,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52254629] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:35:43,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:35:43,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2025-01-09 03:35:43,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882697923] [2025-01-09 03:35:43,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 03:35:43,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 03:35:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:43,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 03:35:43,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:35:43,987 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 03:35:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:44,077 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2025-01-09 03:35:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:35:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2025-01-09 03:35:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:44,079 INFO L225 Difference]: With dead ends: 114 [2025-01-09 03:35:44,079 INFO L226 Difference]: Without dead ends: 99 [2025-01-09 03:35:44,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:35:44,080 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:44,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 95 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:35:44,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-01-09 03:35:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2025-01-09 03:35:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.155844155844156) internal successors, (89), 79 states have internal predecessors, (89), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 03:35:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2025-01-09 03:35:44,092 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 26 [2025-01-09 03:35:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:44,092 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2025-01-09 03:35:44,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 03:35:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2025-01-09 03:35:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-09 03:35:44,093 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:44,093 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:44,102 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 03:35:44,299 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 03:35:44,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:44,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2034249279, now seen corresponding path program 1 times [2025-01-09 03:35:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:44,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188226792] [2025-01-09 03:35:44,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:44,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 03:35:44,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 03:35:44,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:44,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576132415] [2025-01-09 03:35:44,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:35:44,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:44,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:44,334 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 03:35:44,337 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 03:35:44,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 03:35:44,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 03:35:44,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:35:44,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:44,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-09 03:35:44,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:35:44,851 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:35:46,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188226792] [2025-01-09 03:35:46,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:35:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576132415] [2025-01-09 03:35:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576132415] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:35:46,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:35:46,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2025-01-09 03:35:46,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109994496] [2025-01-09 03:35:46,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 03:35:46,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-09 03:35:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:46,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-09 03:35:46,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2025-01-09 03:35:46,629 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand has 20 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:35:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:48,834 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2025-01-09 03:35:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 03:35:48,835 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2025-01-09 03:35:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:48,836 INFO L225 Difference]: With dead ends: 137 [2025-01-09 03:35:48,836 INFO L226 Difference]: Without dead ends: 135 [2025-01-09 03:35:48,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=669, Unknown=0, NotChecked=0, Total=812 [2025-01-09 03:35:48,837 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:48,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 204 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:35:48,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-01-09 03:35:48,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2025-01-09 03:35:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 103 states have internal predecessors, (117), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-01-09 03:35:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2025-01-09 03:35:48,864 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 30 [2025-01-09 03:35:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:48,864 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2025-01-09 03:35:48,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.1) internal successors, (42), 19 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:35:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2025-01-09 03:35:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 03:35:48,866 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:48,866 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:48,873 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 03:35:49,068 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 03:35:49,068 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:49,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:49,068 INFO L85 PathProgramCache]: Analyzing trace with hash 362070727, now seen corresponding path program 2 times [2025-01-09 03:35:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:49,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973456355] [2025-01-09 03:35:49,069 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:35:49,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:49,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:35:49,088 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:35:49,088 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:35:49,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 03:35:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:35:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973456355] [2025-01-09 03:35:49,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973456355] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:35:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322005564] [2025-01-09 03:35:49,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:35:49,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:49,326 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 03:35:49,328 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 03:35:49,353 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:35:49,371 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:35:49,372 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:35:49,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:49,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:35:49,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:35:49,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:35:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 03:35:49,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322005564] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:35:49,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:35:49,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 15 [2025-01-09 03:35:49,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439651677] [2025-01-09 03:35:49,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:35:49,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 03:35:49,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:35:49,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 03:35:49,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:35:49,563 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 9 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-09 03:35:49,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:35:49,728 INFO L93 Difference]: Finished difference Result 341 states and 405 transitions. [2025-01-09 03:35:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 03:35:49,729 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 9 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 50 [2025-01-09 03:35:49,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:35:49,732 INFO L225 Difference]: With dead ends: 341 [2025-01-09 03:35:49,732 INFO L226 Difference]: Without dead ends: 334 [2025-01-09 03:35:49,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2025-01-09 03:35:49,733 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 68 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:35:49,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 148 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:35:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-01-09 03:35:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 324. [2025-01-09 03:35:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 260 states have (on average 1.15) internal successors, (299), 267 states have internal predecessors, (299), 36 states have call successors, (36), 27 states have call predecessors, (36), 27 states have return successors, (35), 29 states have call predecessors, (35), 35 states have call successors, (35) [2025-01-09 03:35:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 370 transitions. [2025-01-09 03:35:49,780 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 370 transitions. Word has length 50 [2025-01-09 03:35:49,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:35:49,781 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 370 transitions. [2025-01-09 03:35:49,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 9 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-09 03:35:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 370 transitions. [2025-01-09 03:35:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 03:35:49,782 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:35:49,782 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-09 03:35:49,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 03:35:49,982 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 03:35:49,983 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:35:49,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:35:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1851640067, now seen corresponding path program 2 times [2025-01-09 03:35:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:35:49,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190974664] [2025-01-09 03:35:49,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:35:49,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:35:49,988 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:35:50,011 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:35:50,011 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:35:50,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:35:50,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497812555] [2025-01-09 03:35:50,013 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:35:50,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:35:50,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:35:50,015 INFO L229 MonitoredProcess]: Starting monitored process 9 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 03:35:50,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 03:35:50,046 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:35:50,070 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:35:50,070 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:35:50,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:35:50,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-09 03:35:50,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:35:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 03:35:50,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:36:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 37 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:36:00,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:36:00,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190974664] [2025-01-09 03:36:00,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:36:00,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497812555] [2025-01-09 03:36:00,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497812555] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:36:00,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:36:00,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 24 [2025-01-09 03:36:00,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815753298] [2025-01-09 03:36:00,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 03:36:00,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-09 03:36:00,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:36:00,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-09 03:36:00,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2025-01-09 03:36:00,589 INFO L87 Difference]: Start difference. First operand 324 states and 370 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 22 states have internal predecessors, (58), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2025-01-09 03:36:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:36:17,530 INFO L93 Difference]: Finished difference Result 450 states and 521 transitions. [2025-01-09 03:36:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-09 03:36:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 22 states have internal predecessors, (58), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 50 [2025-01-09 03:36:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:36:17,534 INFO L225 Difference]: With dead ends: 450 [2025-01-09 03:36:17,534 INFO L226 Difference]: Without dead ends: 448 [2025-01-09 03:36:17,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2025-01-09 03:36:17,536 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:36:17,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 280 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-01-09 03:36:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-01-09 03:36:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 443. [2025-01-09 03:36:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 356 states have (on average 1.146067415730337) internal successors, (408), 366 states have internal predecessors, (408), 51 states have call successors, (51), 35 states have call predecessors, (51), 35 states have return successors, (50), 41 states have call predecessors, (50), 50 states have call successors, (50) [2025-01-09 03:36:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 509 transitions. [2025-01-09 03:36:17,593 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 509 transitions. Word has length 50 [2025-01-09 03:36:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:36:17,593 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 509 transitions. [2025-01-09 03:36:17,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 22 states have internal predecessors, (58), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2025-01-09 03:36:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 509 transitions. [2025-01-09 03:36:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 03:36:17,595 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:17,595 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:17,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 03:36:17,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:17,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:17,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash 312807679, now seen corresponding path program 2 times [2025-01-09 03:36:17,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:36:17,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770777162] [2025-01-09 03:36:17,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:36:17,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:36:17,801 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:36:17,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:36:17,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:36:17,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:36:17,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219128407] [2025-01-09 03:36:17,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:36:17,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:17,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:17,843 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:36:17,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 03:36:17,873 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-01-09 03:36:17,893 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 03:36:17,893 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:36:17,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:36:17,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-01-09 03:36:17,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:36:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 18 proven. 50 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:36:18,640 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:36:19,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:36:19,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770777162] [2025-01-09 03:36:19,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:36:19,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219128407] [2025-01-09 03:36:19,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219128407] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:36:19,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:36:19,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2025-01-09 03:36:19,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195867965] [2025-01-09 03:36:19,462 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 03:36:19,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 03:36:19,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:36:19,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 03:36:19,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:36:19,463 INFO L87 Difference]: Start difference. First operand 443 states and 509 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:36:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:36:19,740 INFO L93 Difference]: Finished difference Result 445 states and 510 transitions. [2025-01-09 03:36:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 03:36:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 50 [2025-01-09 03:36:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:36:19,744 INFO L225 Difference]: With dead ends: 445 [2025-01-09 03:36:19,744 INFO L226 Difference]: Without dead ends: 443 [2025-01-09 03:36:19,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2025-01-09 03:36:19,745 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:36:19,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 207 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:36:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2025-01-09 03:36:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2025-01-09 03:36:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 356 states have (on average 1.1432584269662922) internal successors, (407), 366 states have internal predecessors, (407), 51 states have call successors, (51), 35 states have call predecessors, (51), 35 states have return successors, (50), 41 states have call predecessors, (50), 50 states have call successors, (50) [2025-01-09 03:36:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 508 transitions. [2025-01-09 03:36:19,798 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 508 transitions. Word has length 50 [2025-01-09 03:36:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:36:19,798 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 508 transitions. [2025-01-09 03:36:19,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:36:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 508 transitions. [2025-01-09 03:36:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-01-09 03:36:19,799 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:19,800 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:19,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 03:36:20,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:20,000 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:20,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1619361407, now seen corresponding path program 3 times [2025-01-09 03:36:20,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:36:20,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849478318] [2025-01-09 03:36:20,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 03:36:20,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:36:20,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 60 statements into 6 equivalence classes. [2025-01-09 03:36:20,043 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 60 of 60 statements. [2025-01-09 03:36:20,043 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-09 03:36:20,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:36:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20859590] [2025-01-09 03:36:20,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 03:36:20,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:20,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:20,048 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:36:20,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 03:36:20,076 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 60 statements into 6 equivalence classes. [2025-01-09 03:36:20,111 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 60 of 60 statements. [2025-01-09 03:36:20,111 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-09 03:36:20,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:36:20,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-01-09 03:36:20,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:36:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 17 proven. 86 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:36:22,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:36:23,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:36:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849478318] [2025-01-09 03:36:23,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:36:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20859590] [2025-01-09 03:36:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20859590] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:36:23,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:36:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2025-01-09 03:36:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527619946] [2025-01-09 03:36:23,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 03:36:23,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-09 03:36:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:36:23,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-09 03:36:23,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2025-01-09 03:36:23,459 INFO L87 Difference]: Start difference. First operand 443 states and 508 transitions. Second operand has 20 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 03:36:29,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-01-09 03:36:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:36:29,693 INFO L93 Difference]: Finished difference Result 448 states and 513 transitions. [2025-01-09 03:36:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-09 03:36:29,693 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 60 [2025-01-09 03:36:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:36:29,696 INFO L225 Difference]: With dead ends: 448 [2025-01-09 03:36:29,696 INFO L226 Difference]: Without dead ends: 446 [2025-01-09 03:36:29,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2025-01-09 03:36:29,697 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:36:29,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 307 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2025-01-09 03:36:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-01-09 03:36:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 425. [2025-01-09 03:36:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 342 states have (on average 1.1432748538011697) internal successors, (391), 351 states have internal predecessors, (391), 49 states have call successors, (49), 33 states have call predecessors, (49), 33 states have return successors, (48), 40 states have call predecessors, (48), 48 states have call successors, (48) [2025-01-09 03:36:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 488 transitions. [2025-01-09 03:36:29,758 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 488 transitions. Word has length 60 [2025-01-09 03:36:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:36:29,759 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 488 transitions. [2025-01-09 03:36:29,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 03:36:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 488 transitions. [2025-01-09 03:36:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 03:36:29,761 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:29,761 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:29,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-09 03:36:29,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 03:36:29,961 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:29,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:29,962 INFO L85 PathProgramCache]: Analyzing trace with hash -866409341, now seen corresponding path program 3 times [2025-01-09 03:36:29,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:36:29,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583815190] [2025-01-09 03:36:29,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 03:36:29,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:36:29,968 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-09 03:36:30,016 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 03:36:30,016 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-01-09 03:36:30,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:36:30,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426250362] [2025-01-09 03:36:30,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 03:36:30,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:30,021 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:36:30,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 03:36:30,049 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-09 03:36:30,077 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 50 of 70 statements. [2025-01-09 03:36:30,077 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-09 03:36:30,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:36:30,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-09 03:36:30,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:36:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-01-09 03:36:30,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:36:30,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:36:30,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583815190] [2025-01-09 03:36:30,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:36:30,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426250362] [2025-01-09 03:36:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426250362] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:36:30,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:36:30,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-01-09 03:36:30,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25984604] [2025-01-09 03:36:30,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 03:36:30,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 03:36:30,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:36:30,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 03:36:30,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:36:30,842 INFO L87 Difference]: Start difference. First operand 425 states and 488 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 03:36:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:36:31,072 INFO L93 Difference]: Finished difference Result 506 states and 581 transitions. [2025-01-09 03:36:31,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 03:36:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 70 [2025-01-09 03:36:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:36:31,075 INFO L225 Difference]: With dead ends: 506 [2025-01-09 03:36:31,075 INFO L226 Difference]: Without dead ends: 504 [2025-01-09 03:36:31,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2025-01-09 03:36:31,076 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:36:31,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 151 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:36:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2025-01-09 03:36:31,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 202. [2025-01-09 03:36:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 162 states have (on average 1.154320987654321) internal successors, (187), 163 states have internal predecessors, (187), 20 states have call successors, (20), 19 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 03:36:31,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 226 transitions. [2025-01-09 03:36:31,115 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 226 transitions. Word has length 70 [2025-01-09 03:36:31,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:36:31,116 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 226 transitions. [2025-01-09 03:36:31,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 03:36:31,116 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 226 transitions. [2025-01-09 03:36:31,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 03:36:31,117 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:31,117 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:31,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 03:36:31,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-09 03:36:31,317 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:31,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1462039553, now seen corresponding path program 4 times [2025-01-09 03:36:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:36:31,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543237755] [2025-01-09 03:36:31,318 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 03:36:31,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:36:31,322 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-01-09 03:36:31,356 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 03:36:31,356 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 03:36:31,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:36:31,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326010401] [2025-01-09 03:36:31,362 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 03:36:31,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:31,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:31,367 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:36:31,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 03:36:31,395 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-01-09 03:36:31,462 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 03:36:31,463 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 03:36:31,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:36:31,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-01-09 03:36:31,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:36:42,025 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-09 03:36:42,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2025-01-09 03:36:42,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:36:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543237755] [2025-01-09 03:36:42,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:36:42,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326010401] [2025-01-09 03:36:42,026 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-09 03:36:42,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-09 03:36:42,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:42,227 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 44 more [2025-01-09 03:36:42,232 INFO L158 Benchmark]: Toolchain (without parser) took 64485.97ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 135.3MB in the beginning and 233.3MB in the end (delta: -98.0MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2025-01-09 03:36:42,232 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:36:42,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.39ms. Allocated memory is still 167.8MB. Free memory was 135.3MB in the beginning and 124.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 03:36:42,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.53ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 122.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:36:42,233 INFO L158 Benchmark]: Boogie Preprocessor took 22.70ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 122.0MB in the end (delta: 906.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:36:42,234 INFO L158 Benchmark]: RCFGBuilder took 259.65ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 111.5MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 03:36:42,234 INFO L158 Benchmark]: TraceAbstraction took 63954.00ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 111.0MB in the beginning and 233.3MB in the end (delta: -122.3MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2025-01-09 03:36:42,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.39ms. Allocated memory is still 167.8MB. Free memory was 135.3MB in the beginning and 124.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.53ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 122.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.70ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 122.0MB in the end (delta: 906.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.65ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 111.5MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 63954.00ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 111.0MB in the beginning and 233.3MB in the end (delta: -122.3MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/nla-digbench-scaling/prodbin-ll_unwindbound10.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 b4ff78c7a05ff12ed3c4b9587e1e659860187fd62fb9ac015e2b63b391c38f88 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:36:44,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:36:44,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 03:36:44,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:36:44,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:36:44,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:36:44,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:36:44,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:36:44,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:36:44,352 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:36:44,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:36:44,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:36:44,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:36:44,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:36:44,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:36:44,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:36:44,357 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:36:44,357 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:36:44,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:36:44,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:36:44,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:36:44,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:36:44,359 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 -> b4ff78c7a05ff12ed3c4b9587e1e659860187fd62fb9ac015e2b63b391c38f88 [2025-01-09 03:36:44,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:36:44,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:36:44,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:36:44,614 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:36:44,615 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:36:44,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound10.c [2025-01-09 03:36:45,932 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aef5a5ae5/b500ee5eea754746b38002f6ca618978/FLAG01c4964f1 [2025-01-09 03:36:46,108 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:36:46,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound10.c [2025-01-09 03:36:46,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aef5a5ae5/b500ee5eea754746b38002f6ca618978/FLAG01c4964f1 [2025-01-09 03:36:46,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aef5a5ae5/b500ee5eea754746b38002f6ca618978 [2025-01-09 03:36:46,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:36:46,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:36:46,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:36:46,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:36:46,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:36:46,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b9532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46, skipping insertion in model container [2025-01-09 03:36:46,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:36:46,629 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/nla-digbench-scaling/prodbin-ll_unwindbound10.c[1175,1188] [2025-01-09 03:36:46,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:36:46,653 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:36:46,665 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/nla-digbench-scaling/prodbin-ll_unwindbound10.c[1175,1188] [2025-01-09 03:36:46,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:36:46,680 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:36:46,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46 WrapperNode [2025-01-09 03:36:46,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:36:46,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:36:46,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:36:46,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:36:46,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,707 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2025-01-09 03:36:46,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:36:46,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:36:46,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:36:46,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:36:46,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,728 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 03:36:46,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,736 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:36:46,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:36:46,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:36:46,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:36:46,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (1/1) ... [2025-01-09 03:36:46,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:36:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:46,777 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 03:36:46,781 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 03:36:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:36:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 03:36:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:36:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:36:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 03:36:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 03:36:46,865 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:36:46,866 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:36:47,019 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-01-09 03:36:47,019 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:36:47,029 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:36:47,030 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:36:47,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:36:47 BoogieIcfgContainer [2025-01-09 03:36:47,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:36:47,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:36:47,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:36:47,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:36:47,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:36:46" (1/3) ... [2025-01-09 03:36:47,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347a457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:36:47, skipping insertion in model container [2025-01-09 03:36:47,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:36:46" (2/3) ... [2025-01-09 03:36:47,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347a457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:36:47, skipping insertion in model container [2025-01-09 03:36:47,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:36:47" (3/3) ... [2025-01-09 03:36:47,042 INFO L128 eAbstractionObserver]: Analyzing ICFG prodbin-ll_unwindbound10.c [2025-01-09 03:36:47,055 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:36:47,057 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_unwindbound10.c that has 2 procedures, 21 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:36:47,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:36:47,112 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;@16c7d780, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:36:47,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:36:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 03:36:47,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 03:36:47,123 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:47,124 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:47,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash -572597424, now seen corresponding path program 1 times [2025-01-09 03:36:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 03:36:47,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391593516] [2025-01-09 03:36:47,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:36:47,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:47,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:47,144 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 03:36:47,147 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 03:36:47,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 03:36:47,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 03:36:47,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:36:47,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:36:47,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:36:47,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:36:47,276 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 03:36:47,276 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:36:47,277 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 03:36:47,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391593516] [2025-01-09 03:36:47,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391593516] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:36:47,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:36:47,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 03:36:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908091846] [2025-01-09 03:36:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:36:47,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:36:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 03:36:47,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:36:47,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:36:47,301 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:36:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:36:47,315 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2025-01-09 03:36:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:36:47,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 03:36:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:36:47,322 INFO L225 Difference]: With dead ends: 39 [2025-01-09 03:36:47,322 INFO L226 Difference]: Without dead ends: 17 [2025-01-09 03:36:47,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:36:47,326 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:36:47,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:36:47,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-01-09 03:36:47,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-01-09 03:36:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:36:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2025-01-09 03:36:47,357 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2025-01-09 03:36:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:36:47,357 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2025-01-09 03:36:47,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:36:47,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2025-01-09 03:36:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 03:36:47,358 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:36:47,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:36:47,367 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 03:36:47,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:47,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:36:47,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:36:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2015978753, now seen corresponding path program 1 times [2025-01-09 03:36:47,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 03:36:47,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311476520] [2025-01-09 03:36:47,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:36:47,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:36:47,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:36:47,564 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 03:36:47,566 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 03:36:47,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes.